Phylum Arthropoda
Gravenhorst, 1843 · Arthropods

Species in this portal

2407

Ecological class

920 troglobionts, 432 trogloxenes, 416 stygobionts, 356 troglophiles, 141 accidentals, 87 stygoxenes and 55 stygophiles

Realm

Aquatic, Terrestrial

Continent

North America

Countries

Canada, Mexico, United States

States and provinces

50 states and provinces

Counties

984

Karst regions

Appalachians, Black Hills, Driftless Area, Edwards Plateau and Balcones, Florida Lime Sinks, Guadalupe Mountains, Hawaii, Interior Low Plateau, Mother Lode, Other, Ozarks

Habitats

Cave pool, Hypotelminorheic seepage, Cave stream, Cave lake

Cave zone

Deep cave

Conservation

887 of 1805 ranked G1 or G2; 30 federally listed

Child taxa

• Branchiopoda 2 in portal
• Chelicerata 598 in portal
• Copepoda 2 in portal
• Crustacea 550 in portal
• Hexapoda 1024 in portal
• Myriapoda 231 in portal

Species in this portal

• Abacion lactarium G5 GA, TN
• Abacion magnum G5 AL, GA, VA
• Acanthocyclops brevispinosus IL
• Acanthocyclops einslei IL, IN
• Acanthocyclops exilis KY, TN
• Acanthocyclops parasensitivus G2 IN, KY, TN
• Acanthocyclops robustus Robusthops GA, IL, IN, KY, TN
• Acanthocyclops venustoides IL, IN
• Acanthocyclops vernalis Survannshops GA, IA, IL, IN, KY, NM, TN, TX
• Achemenides pectinatus G3 IA, IL, MN, WI
• Aclodes nicuesa
• Acroneuria abnormis Common Stone G5
• Acrotrichis lucidula G2 TN
• Actia diffidens GNR
• Adelocosa anops Kauai Cave Wolf Spider G1G2 HI
• Aedes abserratus Serrated Mosquito G5
• Aedes aurifer Golden Bog Mosquito GNR
• Aedes canadensis Woodland Pool Mosquito G5
• Aedes cinereus
• Aedes communis Snow Mosquito G5
• Aedes fitchii G5
• Aedes provocans Provoking Mosquito G5
• Aedes punctor Moustique Pointu Provocateur Canadien G5
• Aedes sticticus Floodwater Mosquito G5
• Aedes stimulans Woodland Mosquito G5
• Aedes triseriatus Eastern Treehole Mosquito G5 TN
• Aedes vexans Vexans Mosquito G5
• Agastoschizomus texanus TX
• Agelenopsis pennsylvanica Pennsylvania Grass Spider GNR IL
• Agonum extensicolle Extensive Harp Ground Beetle G5 AL, MO
• Agonum punctiforme Punctiform Harp Ground Beetle GNR AL, IN
• Agyneta gagnei G1G2 HI
• Agyneta hedini CO, NM
• Agyneta unimaculata GNR IL
• Alabamocreagris mortis Alabama pseudoscorpion G1G2 AL
• Alabamocreagris pecki G1G2 AL
• Albiorix anophthalmus G1G2 AZ
• Alectorobius concanensis OK
• Alectorobius kelleyi GA
• Aleochara castaneimarmotae GNR AR, IL, KY, MO, TN
• Aleochara castaneipennis G5 AL
• Aleochara fumata Rove Beetle GNR AL, TN
• Aleochara lucifuga GNR AL, IA, IL, IN, KY, TN
• Aleochara ocularis GNR IA
• Allocosa funerea GNR TN
• Allocosa sublata GNR AL
• Allocrangonyx hubrichti Hubricht's Long-tailed Cave Amphipod G3G4 AR, MO
• Allocrangonyx pellucidus Oklahoma Cave Amphipod G2G3 MO, OK
• Allomideopsis wichitaensis TX
• Allotexiweckelia hirsuta G2G3 TX
• Almuerzothyas comalensis GNR TX
• Alocodesmus angustatus
• Aloconota diversiseta G1 TN
• Aloconota insecta Staph Beetle GNR AL, IL, TN
• Aloconota neospelea GNR AL
• Aloconota sulcifrons Sulcate-Faced Minute Rove Beetle GNR TN
• Alucita huebneri
• Amara musculis G5 AL, KY
• Ameractis satis G2G4 AL, GA, TN, VA
• Americina adusta GNR
• Americocreagris columbiana G2G3 OR, WA
• Amerigoniscus centralis G1G2 OK
• Amerigoniscus curvatus G1 GA
• Amerigoniscus georgiensis G1 GA
• Amerigoniscus gipsocolus G1G2 NM, TX
• Amerigoniscus henroti Powell Valley Terrestrial Cave Isopod G3 VA
• Amerigoniscus malheurensis G1 OR
• Amerigoniscus nicholasi G1G2 GA, TN
• Amerigoniscus proximus G1G2 GA
• Amerizus wingatei G5 IA, IL, KY, WI
• Ameroduvalius jeanneli G3 KY
• Amnestus subferrugineus
• Amoebaleria defessa GNR AL, AR, GA, IL, IN, KY, MO, TN, WI
• Amphasia interstitialis Red-Headed Ground Beetle G5 IL
• Amplaria flucticulus CA
• Amplaria shastae G1G2 CA
• Anachemmis jungi CA
• Anahita punctulata Southeastern Wandering Spider G4 AL, GA, TN
• Anargyrtes annulata Grillo De Cueva
• Anasaitis canosus Twin-Flagged Jumping Spider AL
• Andrognathus corticarius Cope's Noodle Millipede G5 GA
• Anevrina olympiae GNR IA
• Anillaspis explanata CA
• Anillinus actuipennis TX
• Anillinus bexarensis TX
• Anillinus cavicola AL
• Anillinus clinei AL
• Anillinus folkertsioides AL
• Anillinus forthoodensis TX
• Anillinus hildebrandti AL
• Anillinus longiceps TN
• Anillinus reddelli TX
• Anillinus smokiensis TN
• Anillinus tombarri AL
• Anillinus valentinei G3G4 AL
• Anillinus wisemanensis TX
• Anisodactylus opaculus MO
• Anisolabis howarthi G1G2 HI
• Aniulus nigrans TN
• Anopheles earlei G5
• Anopheles punctipennis Woodland Malaria Mosquito G5 GA, IL, IN, KY, TN
• Anopheles quadrimaculatus Common Malaria Mosquito G5 IL, IN
• Anotylus exiguus Rove Beetle AL, IA
• Anotylus tetracarinatus Rove Beetle GNR AL
• Anthicus cervinus Cloudy Flower Beetle G5 WI
• Anthrobia coylei G2 KY, TN, VA, WV
• Anthrobia monmouthia Mammoth Cave Spider G5 AL, KY, TN, VA
• Anticarsia gemmatalis Velvetbean Caterpillar G5 AL
• Antrodiaetus unicolor GNR AL, GA, TN
• Antrolana lira G2G4 VA, WV
• Antroxestoblatta immaculata
• Anurida tullbergi IA
• Anyphaena celer GNR AL
• Aphaenogaster tennesseensis Tennessee Collared Ant G5 KY
• Apheloria corrugata KY
• Apheloria montana G5 TN
• Apheloria virginiensis Black-And-Gold Flat Millipede G5 KY
• Aphrastochthonius grubbsi Grubb's Cave Pseudoscorpion G1 CA
• Aphrastochthonius pachysetus G1G2 NM
• Aphrastochthonius pecki G1 AL
• Aphrastochthonius similis Carlow's Cave Pseudoscorpion G1 CA
• Aphrastochthonius tenax G1G2 AL
• Apocheiridium reddelli G1G2 TX
• Apochthonius coecus G1G2 VA
• Apochthonius colecampi G1G2 MO
• Apochthonius diabolus G1 AR
• Apochthonius forbesi G1G2 OR
• Apochthonius grubbsi G1G2 CA
• Apochthonius hobbsi Buckskin Cave Pseudoscorpion G1 OH
• Apochthonius holsingeri G1G2 VA
• Apochthonius indianensis Indiana Cave Pseudoscorpion G1 IN
• Apochthonius malheuri Malheur Pseudoscorpion G1G2 OR
• Apochthonius minor G1 GA, TN
• Apochthonius moestus GNR KY
• Apochthonius mysterius Mystery Cave Pseudoscorpion G1G2 MO
• Apochthonius paucispinosus Dry Fork Valley Cave Pseudoscorpion G1 WV
• Apochthonius russelli Russell Cave Pseudoscorpion G1 AL
• Apochthonius titanicus G2 AR
• Apochthonius typhlus Stone County Cave Pseudoscorpion G1G2 MO
• Appaleptoneta barrowsi G1 AL
• Appaleptoneta credula G1 AL
• Appaleptoneta fiskei GNR GA
• Appaleptoneta jonesi G1 AL
• Aquarius conformis GNR OK
• Aquarius remigis North American Common Water Strider GNR AR, IL, MO, OK
• Araneus cavaticus Barn Orbweaver GNR AL, KY
• Araneus diadematus Cross Orbweaver GNR
• Araneus marmoreus Marbled Orbweaver G5 TN
• Arenophilus bipuncticeps Northern Short-Clawed Centipede GNR GA
• Argyrodes nephilae AL
• Arianops cavernensis GNR AL
• Arianops gorei TN
• Arianops jeanneli G1 VA
• Arianops pecki TN
• Arianops steevesi GNR AL
• Arianops stygica G1 TN
• Armadillidium nasatum Nosy Pill Woodlouse GNR AR, IL, KY, OK, TN
• Armadillidium vulgare Common Pill Woodlouse GNR AL, AR, GA, IL, MO, TN
• Arrhopalites benitus IA
• Arrhopalites caecus IA, TN
• Artesia subterranea G1G2 TX
• Artesia welbourni G1G2 TX
• Atheta alabama GNR AL
• Atheta annexa G5 AL, FL, GA, IA, TN
• Atheta klagesi G5 GA
• Atheta lucifuga G4 AL, FL, GA, TN
• Atheta troglophila G4 AL, FL, GA, IA, OK, TN
• Atranus pubescens GNR AL, AR, GA, IL, IN, KY, MO, TN
• Attagenus brunneus GNR IA
• Attheyella illinoisensis GA, IN, TN
• Attheyella nordenskioldii IL, IN
• Attheyella pilosa GA
• Australinocreagris grahami G1G2 CA
• Austrotyla awishoshola NM
• Austrotyla coloradensis CO
• Austrotyla montivaga NM
• Austrotyla specus IL, MO
• Austrotyla stephensoni CO
• Axonopsella bakeri FL, TX
• Azilia affinis Longjawed Orb Weavers AL, FL
• Bactrurus angulus Cumberland Gap Cave Amphipod G1 TN, VA
• Bactrurus brachycaudus G4 IL, MO
• Bactrurus cellulanus GX IN
• Bactrurus hubrichti Kansas Well Amphipod G4 KS, MO, OK, VA
• Bactrurus mucronatus G5 AR, IA, IL, IN, MI, MO, OH
• Bactrurus pseudomucronatus False Sword-tailed Cave Amphipod G2G3 AR, MO
• Bactrurus speleopolis Cave City Cave Amphipod G1 AR
• Bactrurus wilsoni G1G2 AL
• Banksula californica Alabaster Cave Harvestman GH CA
• Banksula galilei Galile's Cave Harvestman G1 CA
• Banksula grahami G2G3 CA
• Banksula grubbsi Grubbs' Cave Harvestman G1 CA
• Banksula martinorum Martins' Cave Harvestman G1 CA
• Banksula melones Melones Cave Harvestman G1 CA
• Banksula rudolphi Rudolph's Cave Harvestman G1 CA
• Banksula tuolumne Tuolumne Cave Harvestman G2 CA
• Banksula tutankhamen King Tut Cave Harvestman G1 CA
• Basacallis tarachodes GNR FL
• Basilia boardmani G3 FL
• Bathynella fraterna CA
• Bathynella germanitas CA
• Bathynella riparia CO
• Bathyphantes alboventris Notch-Tipped Shield Sheetweaver GNR IL, TN
• Bathyphantes nigrinus Donker Wevertje GNR IN
• Bathyphantes pallidus Pale Sheetweb Weaver G5 GA, IL, MO, TN
• Bathyphantes reprobus Reprobus Sheetweb Weaver GNR
• Bathyphantes weyeri Wide Shield Sheetweaver G4 AR, CO, IN, KY, ME, OH, ON, PA, QC, VA, WI, WV
• Batriasymmodes greeveri G1G2 TN
• Batriasymmodes monstrosus VA
• Batriasymmodes parki GH WV
• Batriasymmodes quisnamus G3 KY, TN
• Batriasymmodes spelaeus G3G4 AL, GA, TN
• Batriasymmodes troglodytes G1G2 AL
• Batrisodes barri G1G2 TN
• Batrisodes cavernosus G1 AL
• Batrisodes clypeospecus G1G2 TN
• Batrisodes cryptotexanus Coffin Cave Mold Beetle G2 TX
• Batrisodes denticollis VA
• Batrisodes dentifrons G1G2 TX
• Batrisodes fanti G1G2 TX
• Batrisodes feminiclypeus G1G2 TX
• Batrisodes ferulifer G1 TN
• Batrisodes gemmoides G1 TN
• Batrisodes gemmus G1 TN
• Batrisodes gravesi G3 TX
• Batrisodes grubbsi G1G2 TX
• Batrisodes henroti G2G3 KY
• Batrisodes hubrichti G1 KY
• Batrisodes incispes G1 TX
• Batrisodes jocuvestus G1 AL
• Batrisodes jonesi G2G3 AL
• Batrisodes krekeleri IN
• Batrisodes lineaticollis G5 AL, GA, TN
• Batrisodes pannosus G1 TN
• Batrisodes pekinsi G1 TX
• Batrisodes profundus G1G2 AL
• Batrisodes reyesi G2G3 TX
• Batrisodes rossi GNR IL
• Batrisodes schmitti TN
• Batrisodes shadeae G1 TX
• Batrisodes specus G3G4 AL, TN, TX
• Batrisodes subterraneus G1 AL
• Batrisodes texanus Inner Space Cavern Mold Beetle G1G2 TX
• Batrisodes tumoris G1 AL
• Batrisodes valentinei G2G4 AL, TN
• Batrisodes venyivi Helotes Cave Mold Beetle G1 TX
• Batrisodes wartoni G1G2 TX
• Belba bulbipedata G1 KY
• Bembidion affine GNR AL
• Bembidion lacunarium Greenbrier Riverbank Ground Beetle GNR AL, GA, IA, IL, KY, TN
• Bembidion nigripes G5 AL
• Bembidion texanum Simple Riverbank Ground Beetle GNR IL, MO, OK
• Bertkauia crosbyana AL
• Bibio xanthopus Yellow-Footed March Fly GNR
• Bicornucandona fineganensis GNR TX
• Bishopella jonesi G1 AL
• Bishopella laciniosa Bishop's Harvestman AL, FL, GA, TN
• Bishopella marianna FL
• Bittacomorpha clavipes Phantom Crane Fly GNR
• Blaberus giganteus Caribbean Giant Cockroach
• Blackburnia aaae G1G2 HI
• Blackburnia howarthi G1G2 HI
• Blancosoma scaturgo G1G2 CO
• Blaniulus guttulatus Snake Millepede G5 GA
• Bleptina caradrinalis Bent-Winged Owlet G5 AL
• Boisea trivittata Boxelder Bug GNR IL
• Bolitophila cinerea GNR
• Bolitophila hybrida GNR IN
• Bolitophila perlata GNR
• Bosmina longirostris Common Long-Nosed Waterflea GNR KY, TN
• Bowmanasellus sequoiae Sequoia Cave Isopod G2 CA
• Brachinus fumans American Bombardier Beetle GNR MO
• Brachycybe lecontii G5 AR
• Brachycybe petasata TN
• Brachycybe producta CA
• Brachydesmus superus Compact Flat-Backed Millipede PA, VA
• Brackenridgia ashleyi Ashley's Terrestrial Cave Isopod G1G3 AR, MO
• Brackenridgia cavernarum G3G4 NM, TX
• Brackenridgia reddelli G2G3 TX
• Bradycellus rupestris Rock-Dwelling Harp Ground Beetle G5 AL
• Bradysia forficulata GNR GA
• Brathinus nitidus G4 AL, KY, TN
• Bremia caricis
• Bryocamptus morrisoni Morrison's Cave Copepod G3G4 IN, KY, MD
• Bryocamptus newyorkensis TN
• Bryocamptus nivalis IN
• Caconemobius albus HI
• Caconemobius howarthi Howarth's Cave Cricket G1G2 HI
• Caconemobius paralbus HI
• Caconemobius uuku HI
• Caconemobius varius Kuamana Cave Cricket G1G2 HI
• Caecidotea acuticarpa G2G3 KS, OK
• Caecidotea adenta G1G2 OK
• Caecidotea alabamensis G3G4 AL, IL, IN, KY, TN
• Caecidotea alleghenyensis Allegheny Spring Isopod G1G2 MD
• Caecidotea ancyla G3G4 AR, MO, OK
• Caecidotea antricola G5 AR, IL, KY, MO, OH, OK
• Caecidotea barri Clifton Cave Isopod G1 KY
• Caecidotea beattyi Beatty's Groundwater Isopod G3G4 IL, IN, MO
• Caecidotea bicrenata Two-toothed Cave Isopod G5 AL, IL, KY, TN
• Caecidotea bilineata G2G3 TX
• Caecidotea cannula Cannulate Cave Isopod G1 WV
• Caecidotea carolinensis Bennett's Mill Cave Isopod G2G3 NC, SC
• Caecidotea catachaetus AL, GA, TN
• Caecidotea circulus G1G2 TN
• Caecidotea cumberlandensis Cumberland Gap Cave Isopod G1G2 VA
• Caecidotea cyrtorhynchus G1 GA
• Caecidotea dauphina AL
• Caecidotea dimorpha G2G3 AR, IN, MO
• Caecidotea dunlaporum Dunlap's Groundwater Isopod GNR IN
• Caecidotea extensolinguala MO
• Caecidotea filicispeluncae Fern Cave Isopod G1 OH
• Caecidotea fisherorum GNR VA
• Caecidotea fonticulus GNR AR
• Caecidotea franzi Franz's Cave Isopod G2G4 KY, MD, PA, WV
• Caecidotea fustis Fustis Cave Isopod G3 MO
• Caecidotea hobbsi Florida Cave Isopod G1G2 FL, GA, VA
• Caecidotea insula Kindt's Cave Isopod G1 OH
• Caecidotea jordani Jordan's Cave Isopod G2G3 IN
• Caecidotea kendeighi Kendeigh's Groundwater Isopod G5 IA, IL, IN, MO, OH
• Caecidotea lesliei G1G2 IL, MO
• Caecidotea mackini GNR OK
• Caecidotea macropropoda Bat Cave Isopod G3 AR, OK
• Caecidotea metcalfi G1G2 KS
• Caecidotea nickajackensis Nickajack Cave Isopod G1 AL, AR, GA, KY, MO, TN, VA
• Caecidotea nordeni Norden's Groundwater Isopod GH MD
• Caecidotea nortoni Norton's Cave Isopod G2G3 TN
• Caecidotea ornatus G1 VA
• Caecidotea packardi G2G4 IL, KY, MO
• Caecidotea paurotrigona G1G2 LA, MS
• Caecidotea putea American Waterslaters G1G3 FL, GA
• Caecidotea recurvata Southwest Virginia Cave Isopod G5 TN, VA
• Caecidotea reddelli G3G4 TX
• Caecidotea richardsonae Tennessee Valley Cave Isopod G5 AL, GA, TN, VA
• Caecidotea rotunda Frost Cave Isopod G2G4 IN, OH
• Caecidotea salemensis Salem Cave Isopod G4 AR, MO
• Caecidotea scyphus G1G2 TN, WV
• Caecidotea serrata Serrated Cave Isopod G1G2 MO
• Caecidotea simonini G1 WV
• Caecidotea simulator G2G3 AR, KS, OK
• Caecidotea sinuncus G1 WV
• Caecidotea spatulata G3G4 IL, MO, VA
• Caecidotea steevesi Steeves' Cave Isopod G3G4 AR, KS, MO, OK
• Caecidotea stiladactyla Slender-fingered Cave Isopod G3G4 AR, MO, OK
• Caecidotea stygia Stygian Cave Isopod G5 IL, IN, KY, MO, MS, OH, TN, VA
• Caecidotea teresae GX IN
• Caecidotea tridentata G1G2 AR, IL, KS, MO, OK
• Calasellus californicus G2 CA, OR
• Calasellus longus G1 CA
• Calathaemon holthuisi Purgatory Cave Shrimp G1G2 TX
• Calathus opaculus GNR KY
• Calicina cloughensis Clough Cave Harvestman G1 CA
• Califobathynella noodti CA
• Califobathynella teucherti CA
• Californibathynella californica CA
• Calileptoneta briggsi Briggs' Cave Spider G1 CA
• Callinectes sapidus American Blue Crab GNR FL
• Calliphora terraenovae NM
• Calliphora vicina GA, IL
• Calliphora vomitoria Orange-Bearded Bluebottle GNR GA, IN
• Callobius bennetti Bennett's Laceweaver G5 IN
• Caloptilia alnivorella Alder Leafminer GNR
• Calymmaria persica GNR AL, GA, IL, KY, TN, VA
• Calymmaria virginica G1 TN
• Cambala annulata Violet Ridged Millipede G5 AL, FL, GA, IN, KY, TN
• Cambala hubrichti G5 GA, NC, TN
• Cambala minor Amber Ridged Millipede G5 AL, AR, GA, IL, IN, KY, MO, OK, TN, VA, WV
• Cambala ochra AL, GA
• Cambala reddelli NM, TX
• Cambala speobia G4 Mexico, TX
• Cambarus aculabrum Benton County Cave Crayfish G1 AR, MO
• Cambarus bartonii Appalachian Brook Crayfish G5 GA, IN, KY, TN, VA, WV
• Cambarus cryptodytes Dougherty Plain Cave Crayfish G2G3 FL, GA
• Cambarus hamulatus Prickly Cave Crayfish G3G4 AL, KY, TN
• Cambarus hubbsi Hubbs' Crayfish G3
• Cambarus hubrichti Salem Cave Crayfish G4 MO
• Cambarus jonesi Alabama Cave Crayfish G2 AL
• Cambarus laconensis Lacon Exit Cave Crayfish G1 AL
• Cambarus latimanus Variable Crayfish G5 GA, TN
• Cambarus nerterius Greenbrier Cave Crayfish G1 WV
• Cambarus parvoculus Mountain Midget Crayfish G5 KY
• Cambarus pecki Phantom Cave Crayfish G1G2 AL
• Cambarus setosus Bristly Cave Crayfish G3 AR, MO, OK
• Cambarus sheltae Shelta Cave Crayfish G1 AL
• Cambarus speleocoopi Sweet Home Alabama Cave Crayfish G1 AL
• Cambarus striatus Ambiguous Crayfish G5 AL, GA, TN
• Cambarus subterraneus Delaware County Cave Crayfish G1 KY, OK
• Cambarus tartarus Oklahoma Cave Crayfish G1 OK
• Cambarus tenebrosus Cavespring Crayfish G5 AL, GA, IL, IN, KY, TN
• Cambarus veitchorum White Spring Cave Crayfish G1 AL
• Cambarus zophonastes Hell Creek Cave Crayfish G1 AR
• Camponotus sayi Say's Carpenter Ant GNR AR
• Canthon imitator NM
• Carcinophora americana
• Carebara urichi
• Carnarimelita janstocki HI
• Cartodere constricta Plaster Beetle GNR IA
• Catopocerus alabamae GNR AL
• Catopocerus appalachianus GNR AL, TN
• Catopocerus jonesi GNR AL
• Catops gratiosus G5 AL, GA, IA, IL, IN, KY, MA, MD, NY, OH, PA, TN, VA, WV
• Cauloxenus stygius Northern Cavefish Copepod G1G2 IN, KY
• Causeyella causeyae AR
• Causeyella dendropus Causeyella Cave Millipede G3 AR, MO
• Causeyella youngsteadtorum AR
• Cavaticovelia aaa G1G2 HI
• Cavernicola pilosa Barbeiro
• Centromerus cornupalpis Eastern Spurred Sheetweaver GNR AL, IL
• Centromerus denticulatus GNR AL, GA
• Centromerus latidens G5 AL, FL, GA, IL, KY, MO, TN
• Centromerus tennapex TN
• Ceraticelus fissiceps G5 AL
• Ceraticelus minutus G5
• Ceratophysella boletivora Springtail GNR IL
• Ceratophysella brevis GNR IL
• Ceratophysella denticulata IA, IL, TN
• Ceratophysella engadinensis IL
• Ceratophysella lucifuga Wyandotte Cave Springtail GNR IL, IN
• Ceratozetes gracilis GNR IA, KY
• Cerobasis guestfalica Book Lice KY
• Ceuthophilus brevipes Short-Legged Camel Cricket G5
• Ceuthophilus carlsbadensis NM, TX
• Ceuthophilus conicaudus NM
• Ceuthophilus elegans IL, MO, WI
• Ceuthophilus ensifer AL, GA, TN
• Ceuthophilus gracilipes Slender-Legged Camel Cricket GNR AL, FL, GA, IL, TN
• Ceuthophilus isletae NM
• Ceuthophilus latens Black-Sided Camel Cricket GNR AL, VA
• Ceuthophilus latibuli FL
• Ceuthophilus longipes GNR NM
• Ceuthophilus maculatus Spotted Camel Cricket G5
• Ceuthophilus pallidipes KY
• Ceuthophilus palmeri
• Ceuthophilus seclusus GNR IL
• Ceuthophilus stygius Cave Camel Cricket GNR AL, IN, KY, TN
• Ceuthophilus virgatipes FL
• Ceuthophilus williamsoni GNR IL
• Chaetaspis aleyorum Aley's Cave Milliped G1 MO
• Chaetaspis attenuatus AR
• Chaetaspis debilis TN
• Chaetaspis fragilis GNR KY
• Chaetaspis mollis G1 AL, TN
• Chaoborus albatus GNR
• Chauliodes pectinicornis Summer Fishfly GNR
• Cheiracanthium inclusum Yellow Sac Spider GNR AL
• Cheiridium reyesi G1G2 TX
• Cherokia georgiana G4 GA
• Cheumatopsyche minuscula G5
• Chinquipellobunus madlae G4 TX
• Chinquipellobunus russelli G2G3 TX
• Chionea scita GNR KY
• Chironomus decorus GNR GA
• Chironomus plumosus Chironome Plumosus
• Chiroptonyssus robustipes NM, TX
• Chitrella archeri G1G2 TN
• Chitrella cavicola G3
• Chitrella elliotti G1G2 TX
• Chitrella major G1G2 TX
• Chitrella regina Royal Syarinid Pseudoscorpion G1 WV
• Chitrella superba G1 VA
• Chitrella welbourni G1G2 NM
• Chitrellina chiricahuae G1G2 AZ
• Chlaenius aestivus Summer Harp Ground Beetle GNR IL
• Chlamydotheca texasiensis TX
• Choctella cumminsi TN
• Chrysops univittatus One-Striped Deer Fly G5 TN
• Chthonius cryptus
• Chthonius paludis GA, TN
• Cicurina arcata G5 IL
• Cicurina arcuata G5 GA, IL, TN
• Cicurina bandera G2G3 TX
• Cicurina bandida Bandit Cave Meshweaver G2 TX
• Cicurina baronia Robber Baron Cave Meshweaver G1 TX
• Cicurina barri G1G2 TX
• Cicurina breviaria AL, TN
• Cicurina brevis Small-Eared Meshweaver G5 IL
• Cicurina browni G1G2 TX
• Cicurina brunsi TX
• Cicurina bullis TX
• Cicurina buwata G1G2 TX
• Cicurina caliga GNR TX
• Cicurina cavealis GNR IL
• Cicurina caverna G1G2 TX
• Cicurina coryelli G1G2 TX
• Cicurina delrio TX
• Cicurina ezelli G1G2 TX
• Cicurina gruta G1G2 TX
• Cicurina holsingeri G1G2 TX
• Cicurina hoodensis GNR TX
• Cicurina joya TX
• Cicurina loftini TX
• Cicurina machete G1G2 TX
• Cicurina madla Madla Cave Meshweaver G1 TX
• Cicurina mckenziei G1G2 TX
• Cicurina medina G1G2 TX
• Cicurina menardia G1G2 TX
• Cicurina minima GNR AL
• Cicurina mirifica TX
• Cicurina mixmaster GNR TX
• Cicurina neovespera TX
• Cicurina obscura G1G2 TX
• Cicurina orellia G1G2 TX
• Cicurina pablo G1G2 TX
• Cicurina pallida GNR GA, IL, IN, KY
• Cicurina pastura G1G2 TX
• Cicurina patei G1G2 TX
• Cicurina placida GNR TN
• Cicurina platypus TX
• Cicurina porteri G1G2 TX
• Cicurina puentecilla G1G2 TX
• Cicurina rainesi G1G2 TX
• Cicurina reclusa G1G2 TX
• Cicurina reddelli G1G2 TX
• Cicurina russelli G1G2 TX
• Cicurina sansaba G1G2 TX
• Cicurina selecta G1G2 TX
• Cicurina serena G1G2 TX
• Cicurina sheari G1G2 TX
• Cicurina sprousei G1G2 TX
• Cicurina stowersi G1G2 TX
• Cicurina suttoni G1G2 TX
• Cicurina travisae G1G2 TX
• Cicurina troglobia GNR TX
• Cicurina ubicki G1G2 TX
• Cicurina uvalde G1G2 TX
• Cicurina varians GNR NM
• Cicurina venefica G1G2 TX
• Cicurina vespera Government Canyon Bat Cave Meshweaver G1 TX
• Cicurina vibora G1G2 TX
• Cicurina wartoni Warton Cave Meshweaver G1 TX
• Cicurina watersi G1G2 TX
• Cicurina wiltoni G1 AL
• Cirolanides texensis G4 Mexico, TX
• Cirolanides wassenichae TX
• Cladura flavoferruginea GNR IN
• Cleidogona baroqua
• Cleidogona crucis
• Cleidogona crystallina
• Cleidogona hoffmani G3 VA
• Cleidogona mayapec
• Cleidogona pecki
• Cleidogona unita IL
• Climacia areolaris GNR
• Coecobrya kukae G1G2 HI
• Coecobrya lua G1G2 HI
• Coecobrya nupa G1G2 HI
• Coecobrya tenebricosa GNR AL, IL
• Coloradesmus aquiliensis G1G2 CO
• Coloradesmus beckleyi CO
• Coloradesmus hopkinsae CO
• Coloradesmus manitou CO
• Coloradesmus warneri CO
• Columbasellus acheron WA
• Colusa illecta AL
• Comalcandona gibsoni Gibson's Groundwater Ostracod TX
• Comalcandona mixoni TX
• Comalcandona tressleri TX
• Comaldessus stygius Comal Springs Diving Beetle G1 TX
• Conasellus burkensis GNR VA
• Conasellus communis Eastern Waterslater NY
• Conasellus forbesi Forbes' Waterslater TN
• Conasellus jeffersoni VA
• Conasellus kenki G3 DC, MD, PA, VA
• Conasellus phreaticus G2G3 VA
• Conasellus pricei Price's Cave Isopod G5 MD, PA, VA, WV
• Conasellus washingtoni DC
• Condeicampa langei GNR TN
• Conicera similis AL
• Conosoma velocipes
• Conotyla blakei G4 MD, PA
• Conotyla bollmani Bollman's Cave Millipede G3 IN
• Conotyla vista GH WV
• Copestylum vesicularium Iridescent Bromeliad Fly G5 GA
• Coquillettidia perturbans Cattail Mosquito G5
• Coras juvenilis GNR GA, KY
• Coras lamellosus GNR AL, IL
• Coras taugynus TN
• Corydalus cornutus Dobsonfly GNR GA
• Crangonyx anomalus Large Male Crangonyctid G4 IL, IN, OH
• Crangonyx antennatus Appalachian Valley crangonyctid G5 AL, GA, TN, VA
• Crangonyx baculispina Lancaster County Amphipod G1 VA
• Crangonyx barri Barr's Cave Amphipod G5 IN, KY
• Crangonyx bousfieldi G2 OH
• Crangonyx caecus G1 KY
• Crangonyx castellanum G1 KY
• Crangonyx consimilis G4 AL, GA, TN
• Crangonyx cooperi G2 AL
• Crangonyx dearolfi Pennsylvania Cave Amphipod G2 MD, PA
• Crangonyx floridanus Florida Crangonyctid G5 AL, FL, KY, MO, NC, PA, SC, TN
• Crangonyx forbesi Forbes Crangonyctid G5 IL, IN, KY, MO, OH, OK
• Crangonyx gracilis Northern Lake Crangonyctid G4 IN, KY, WV
• Crangonyx grandimanus Florida Cave Amphipod G2G3 FL
• Crangonyx hobbsi Hobb's Cave Amphipod G2G3 FL
• Crangonyx indianensis Indiana Cave Amphipod G3 IN
• Crangonyx insolitus G1 MO
• Crangonyx lewisi Lewis' Cave Amphipod G2 IN, KY
• Crangonyx longidactylus G2 KY
• Crangonyx manubrium Jackson County Cave Amphipod G1G2 FL
• Crangonyx minor Small Stream Crangonyctid G5 IL
• Crangonyx montanus G2 WV
• Crangonyx obliquus Oblique-Hand Crangonyctid G5 AR
• Crangonyx ohioensis Ohio Cave Amphipod G1G2 IN, KY, OH
• Crangonyx packardi Packard's Cave Amphipod G4 IL, IN, KS, KY, MO
• Crangonyx palustris G4 NC
• Crangonyx parhobbsi Florida Big Bend Cave Amphipod G1G2 FL, GA
• Crangonyx pseudogracilis Northern River Crangonyctid G5 KY
• Crangonyx richmondensis Alpine Lake Crangonyctid G5 AK, FL
• Crangonyx rivularis Ontario Stream Crangonyctid G5 KY
• Crangonyx setodactylus Hairy-Fingered Crangonyctid G5 OH
• Crangonyx shoemakeri Shoemaker Crangonyctid G5 IA, IL, IN, MI, OH, VA
• Crangonyx specus G1 KY
• Crangonyx sulphurium Sulphurous Cave Amphipod G1 FL
• Creaserinus fodiens Digger Crayfish G5 IL
• Creophilus maxillosus Hairy Rove Beetle GA
• Crosbycus goodnighti VA
• Crosbyella distincta G1G2 AR
• Crosbyella roeweri G1G2 AR
• Crosbyella spinturnix GNR AL, AR, FL, GA
• Cryptachaea porteri Cobweb Spiders GNR AL, GA, IN, NM, TN
• Cryptachaea rupicola GNR AL, IL
• Cryptocreagris destica CO
• Cryptocreagris steinmanni CO
• Cryptophagus valens GNR IL
• Ctenophthalmus pseudagyrtes GNR AL, GA, TN
• Ctenus captiosus Florida False Wolf Spider FL
• Culex erraticus GNR TN
• Culex pipiens Northern House Mosquito G5 IL, IN, TN
• Culex restuans White-Dotted Mosquito G5 TN
• Culex territans Northern Frog-Biting Mosquito G5 GA
• Culicoides paraensis TN
• Culiseta impatiens Impatient Mosquito G5
• Cybaeopsis pantopla G3 TN
• Cybaeopsis tibialis GNR
• Cybaeus giganteus GNR KY, TN
• Cybaeus patritus TN
• Cyclocosmia truncata Ravine Trapdoor Spider GNR GA
• Cyclocypris sharpei GNR TN
• Cyclops cavernarum GNR TX
• Cyclops learii TX
• Cyclosa conica Cone-Shaped Orbweaver G5
• Cyclotrachelus fucatus GNR IL
• Cyclotrachelus sodalis Blue-Tinged Harp Ground Beetle GNR IL
• Cylindrodesmus hirsutus
• Cylindroiulus arborum IN
• Cylisticus convexus Curly Woodlouse G5 AL, GA, IL, IN, KY, TN, VA
• Cyllopsis gemma Gemmed Satyr G5 TN
• Cyphoderus inaequalis
• Cyphoderus similis
• Cypria lacrima GNR TX
• Cypridopsis vidua Cypris Veuve (La) GNR TX
• Cyrtodesmus archimedes
• Dactylocythere arcuata G1 AL
• Dactylocythere prionata G2 KY
• Dactylocythere steevesi G4 AL, KY, TN
• Dactylocythere ungulata KY, TN
• Dactylolabis hudsonica GNR
• Dactylolabis montana GNR MO
• Darlingtonea kentuckensis G3G4 KY, TN
• Darwinula stevensoni TX
• Dasycerus nikwasi GNR AL
• Dermacentor variabilis American Dog Tick GA, IL
• Derops divalis GNR IL
• Desoria trispinata GNR IL, TN
• Desoria truncata GNR TN
• Desoria violacea GNR
• Deuteraphorura jana AL
• Diacyclops alabamensis AL
• Diacyclops bicuspidatus Damhops GNR IN, KY
• Diacyclops chrisae GA, IN, MD
• Diacyclops clandestinus IL, MO, TN
• Diacyclops conversus Blue River Groundwater Copepod G2 IN
• Diacyclops crassicaudis Kompakthops GNR IN
• Diacyclops indianensis Indiana Groundwater Copepod G2 IN, TN
• Diacyclops jeanneli G1G2 IN, NC
• Diacyclops lewisi Lewis' Groundwater Copepod G1 IN
• Diacyclops navus GNR IN
• Diacyclops nearcticus G3 IN, KY, TN
• Diacyclops nikolasarburni NM
• Diacyclops salisae Salisa's Groundwater Copepod G1 IN
• Diacyclops sororum GNR IN, KY
• Diacyclops yeatmani Yeatman's Groundwater Copepod G2G3 IL, IN, MO, OK, TN
• Dicranomyia humidicola GNR KY
• Dicranomyia stulta GNR
• Dicranota flaveola GNR
• Dicrotendipes neomodestus GNR
• Dineutus assimilis G5 MO
• Dinocheirus astutus NM
• Dinocheirus cavicola G2G3 TX
• Diplectrona marianae G1 GA
• Discourella dubiosa IL
• Dissochaetus oblitus GNR TN
• Docosia paradichroa
• Dohrniphora perplexa GNR AL
• Dolichopeza dorsalis GNR
• Dolichopeza tridenticulata GNR GA
• Dolichopeza venosa GNR
• Dolichopeza walleyi GNR GA
• Dolichopus fulvipes GNR
• Dolichopus penicillatus GNR
• Dolomedes scriptus Dock Spider G5 IL, IN, KY, TN
• Dolomedes tenebrosus Dark Fishing Spider G5 IL, KY, OK
• Dolomedes vittatus Banded Fishing Spider GNR AL, IL, TN
• Donnaldsoncythere hiwasseensis KY
• Donnaldsoncythere tuberosa G2 TN
• Dorypteryx domestica Cave Barklouse KY
• Drosophila funebris Azijnvlieg GNR
• Dryobius sexnotatus Maple Dryobius GNR KY
• Dryomyza anilis Hooded Dryomyza GNR
• Duvalius jureceki
• Duvalius lombardii
• Eidmannella bullata G1G2 TX
• Eidmannella delicata G1G2 TX
• Eidmannella nasuta G1G2 TX
• Eidmannella pallida Pallid Cave Spider GNR AL, AR, AZ, FL, GA, HI, IA, IL, IN, KY, MD, NM, OH, OK, PA, SC, TN, TX, VA, WV
• Eidmannella reclusa G1G2 TX
• Eidmannella rostrata G4 TX
• Eidmannella tuckeri GNR TX
• Elaphoidella bidens GA
• Elaphropus ferrugineus AL, GA
• Elaphropus incurvus G5 IL
• Elaver excepta White Sac Spider G5 GA
• Eleodes eschscholtzii Pinacate De Eschscholtz NM
• Eleodes microps CA
• Elliotta howarthi G1G2 WA
• Emblyna florens AL
• Empherozoster antaeus NM
• Enoplognatha ovata Common Candy-Striped Spider GNR
• Entomobrya bicolor GNR IA
• Entomobrya confusa GNR IA
• Entomobrya intermedia GNR IL
• Entomobrya nivalis
• Entomobrya troglodytes G2G3 CO, SD
• Entomobryoides purpurascens Springtail GNR NM
• Ephemera simulans Brown Drake G4
• Ephippiochthonius tetrachelatus Dimple-Clawed Chthonid AL, IL
• Ephippiochthonius virginicus GA
• Epicharis rustica
• Epitedia cavernicola VA
• Epitedia wenmanni Deermice Flea GNR KY, TN
• Erebomaster flavescens Golden Cave Harvestman G3 IN, KY
• Ereboporus naturaconservatus Nature Conservancy Diving Beetle GNR TX
• Ergodesmus remingtoni G3 IL
• Erichsonius nanus G5 IL
• Erichsonius patella Kneecap Rove Beetle GNR AL
• Erigone autumnalis Autumn Money Spider GNR IA, IL
• Erigone infernalis GNR IN, KY
• Erigone stygius G1G2 HI
• Ethopolys bipunctatus UT
• Euborellia annulipes Ring-Legged Earwig GNR AL
• Euborellia antoni
• Eucyclops agilis GNR IL, IN, KY, NM, TN
• Eucyclops bondi GA, IN
• Eucyclops elegans GA, IN, KY, TN
• Eucyclops speratus Fintagghalehops KY
• Euhadenoecus fragilis Tawneys Cave Cricket KY, TN, VA
• Euhadenoecus insolitus Highland Rim Crevice Cricket AL, TN
• Euhadenoecus puteanus Allegheny Crevice Cricket GNR AL, GA, KY, TN
• Eupeodes volucris Large-Tailed Aphideater G4
• Euryurus erythropygos G3 IN
• Euryurus evides AR
• Euryurus leachii Log Lurker G4 AL, KY
• Euschoengastia pipistrelli AL, GA, TN
• Euschoengastia staffordi AL
• Eustala anastera Orb Weaver G5
• Eustilicus condei NM, TX
• Eutrichota affinis GNR IN
• Eutrichota lipsia GNR IN
• Eutrombicula alfreddugesi AL
• Exechia attrita
• Exechia auxiliaria
• Exechia bifurcata
• Exechia obediens GNR
• Exechia shawi TN
• Exechia umbratica GNR IN
• Exechiopsis nugax
• Faiditus cancellatus GNR AL
• Faxonius neglectus Ringed Crayfish G5 MO, OK
• Faxonius rusticus Rusty Crayfish G5 MO
• Faxonius stygocaneyi Caney Mountain Cave Crayfish G1 MO
• Faxonius validus Powerful Crayfish G5 AL
• Faxonius virilis Virile Crayfish G5 MO
• Feralia jocosa Jocose Sallow G5
• Fissilicreagris imperialis Empire Cave Pseudoscorpion G1 CA
• Flabellorhagidia pecki G1G2 ID
• Folsomia bisetosa GNR IL
• Folsomia candida Springtail GNR AL, AR, GA, IA, IL, KY, MN, MO, NM, TN
• Folsomia elongata GNR IL
• Folsomia fimetaria Springtail GNR KY
• Folsomia nivalis GNR IA, IL, WI
• Folsomia penicula GNR AL
• Folsomia prima GNR IA, IL
• Folsomia stella Springtail GNR IA, IL, MN, TN, WI
• Folsomia variabilis IL
• Folsomides americanus IA
• Forcipomyia pholetor HI
• Foveacheles auricularia CA
• Foveacheles goffi G1G2 HI
• Foveacheles tenorioae G1G2 HI
• Foveacheles titanica G2G3 CA
• Foveacheles tuktoyaktukensis WV
• Friesea claviseta Bark-Tretornspringhale GNR IA
• Gabrius microphthalmus G5 IL
• Gaeolaelaps queenslandicus IL
• Galerita bicolor GNR MO
• Galerita lecontei AL
• Galumna alata Mite G1G2 KY
• Gammarus acherondytes Illinois Cave Amphipod G2G3 IL
• Gammarus cohabitus G1G2 PA
• Gammarus limnaeus GNR IL, MO
• Gammarus minus GNR AL, AR, GA, IL, IN, KY, MD, MO, OH, OK, PA, TN, VA, WV
• Gammarus minus tenuipes VA, WV
• Gammarus pseudolimnaeus Northern Spring Amphipod G5 IA, IL
• Gammarus troglophilus GNR IL, MO
• Gastrellarius honestus G5 KY
• Gaucelmus augustinus G3 AL, FL, GA, MS, TX
• Gaucelmus cavernicola
• Gaucelmus strinatii
• Gaucelmus tropicus
• Gennadota puberula IA
• Geocolus caecus AL
• Geodromicus brunneus GNR AL, GA, IL, TN
• Glacicavicola bathyscioides G3 ID, WY
• Globocreagris nigrescens VA
• Gnathonaroides pedalis GNR
• Gnophomyia tristissima GNR IL
• Grandidierella palama HI
• Gymnophora luteiventris GNR
• Hadenoecus barri Barr's Cave Cricket TN
• Hadenoecus cumberlandicus Cumberland Cave Cricket GNR KY
• Hadenoecus jonesi Limrock Blowing Cave Cricket GNR AL, TN
• Hadenoecus opilionoides TN
• Hadenoecus subterraneus Mammoth Cave Cricket GNR KY, TN
• Haideoporus texanus Edwards Aquifer Diving Beetle G1G2 TX
• Halocaridina palahemo G1 HI
• Halocaridina rubra G3 HI
• Hamohalacarus subterraneus Donaldson's Cave Water Mite G1 IN
• Haplophthalmus danicus Spurred Ridgeback IL, IN, KY, NM, TN, VA
• Harpalus pennsylvanicus GA
• Hawaiioscia micropthalma G1G2 HI
• Hawaiioscia paeninsulae G1G2 HI
• Hawaiioscia parvituberculata G1G2 HI
• Hawaiioscia rotundata G1G2 HI
• Hawinella lava G2G3 HI
• Heleomyza brachypterna AR
• Heleomyza serrata GNR IN, WI
• Helius flavipes GNR
• Heminothrus targionii GNR
• Hemiscolopendra marginata Eastern Bark Centipede GNR IN
• Hemisotoma thermophila GNR IL
• Hentziectypus globosus Fingered Cobweaver GNR AL
• Hesperochernes bradybaughi GNR AZ
• Hesperochernes holsingeri Holsinger's Cave Pseudoscorpion G1 IN
• Hesperochernes mirabilis Southeastern Cave Pseudoscorpion G5 AL, GA, IL, IN, KY, OH, TN, VA
• Hesperochernes occidentalis Guano Pseudoscorpion G5 AR, MO, OK, TX
• Hesperonemastoma inops G1G2 KY
• Hesperonemastoma pallidimaculosum G3 AL
• Hesperonemastoma smilax GNR WV
• Heteraphorura subtenuis GNR IL
• Heterelmis comalensis Comal Springs Riffle Beetle G1 TX
• Heteromurus nitidus IA
• Hexabathynella hessleri CA
• Hexabathynella muliebris CA
• Hexabathynella otayana CA
• Hexabathynella virginiae VA
• Hibana gracilis Garden Ghost Spider GNR AL
• Hickmania troglodytes Tasmanian Cave Spider
• Hobbsinella edwardensis GNR TX
• Hobbsinella gunnisonensis CO
• Hogna frondicola Forest Wolf Spider G5
• Holsingerius samacos G1G2 TX
• Homaeotarsus bicolor GNR IL
• Homaeotarsus carolinus GNR AL
• Homidia socia Three-Lined Springtail IL
• Horologion hubbardi GNR VA
• Horologion speokites Arbuckle Cave Beetle GH WV
• Horreolanus orphanus IL, OH
• Howaia mogera Kasholenspin HI
• Hubbardia shoshonensis Shoshone Cave Whipscorpion G1 CA
• Hyalella azteca Mexican Freshwater Shrimp G5 FL
• Hyalella cretae GNR NV
• Hygrotus sayi Say's Diving Beetle G5
• Hypena scabra Green Cloverworm G5 IL, IN, VA
• Hypoaspis angusta IL
• Hypochilus bonneti GNR CO, NM
• Hypochilus coylei G3 NC
• Hypochilus gertschi G3 VA
• Hypochilus pococki Pocock's Lampshade-Web Spider G4 NC, TN
• Hypochilus thorelli Thorell's Lampshade-Web Spider G4 AL, GA, TN, VA
• Hypogastrura antra KY, TN
• Hypogastrura assimilis Mark-Tornspringhale GNR AL, IL, TN
• Hypogastrura matura GNR IL, MO
• Hypogastrura notha IL
• Hypogastrura purpurescens Purpur-Tornspringhale GNR
• Hypogastrura sparta AL
• Hypogastrura tullbergi GNR AL
• Idagona jasperi UT
• Idagona lehmanensis NV
• Idagona westcotti Idaho Lave Tube Millipede G1G2 ID
• Illacme tobini CA
• Iolania frankanstonei HI
• Islandiana cavealis Cave Sheet-web Spider GNR IN
• Islandiana flaveola Unequal Whiskered Money Spider G5 IL
• Islandiana lewisi cave sheet-web spider G1 IN
• Islandiana muma G1G2 AL, IL, VA
• Islandiana princeps Eastern Whiskered Money Spider GNR IL
• Islandiana speophila Cavern Sheet-web Spider G1 WV
• Islandiana unicornis G2G3 IL, OK, TX
• Isotoma andrei IL
• Isotoma gelida IL
• Isotoma tariva TN
• Isotoma trispinata IA, IL, MN
• Isotoma viridis Engspringhale GNR IA, MO
• Isotomiella minor Springtail GNR IA, IL, TN
• Ixodes conepati NM, TX
• Ixodes cookei American Castor Bean Tick GA, KY
• Ixodes scapularis Black Legged Tick GNR OK
• Ixodes woodi GNR TN
• Jalysus wickhami Spined Stilt Bug GNR KY
• Kleptochthonius affinis G1G2 TN
• Kleptochthonius anophthalmus G1 VA
• Kleptochthonius attenuatus G1 KY
• Kleptochthonius barri G1G2 TN
• Kleptochthonius binoculatus G1G2 VA
• Kleptochthonius cerberus G1 KY
• Kleptochthonius charon G1G2 TN
• Kleptochthonius daemonius G1G2 TN
• Kleptochthonius erebicus G1 KY
• Kleptochthonius gertschi Gertsch's Cave Pseudoscorpion G1 VA
• Kleptochthonius griseomanus Gray-handed Cave Pseudoscorpion G2 IN
• Kleptochthonius hageni G1G2 KY
• Kleptochthonius henroti Greenbrier Valley Cave Pseudoscorpion G2 WV
• Kleptochthonius hetricki Organ Cave Pseudoscorpion G1 WV
• Kleptochthonius hubrichti G1G2 KY
• Kleptochthonius infernalis G1 TN
• Kleptochthonius krekeleri G2G4 KY
• Kleptochthonius lewisorum Lewis Cave Pseudoscorpion G1 IN
• Kleptochthonius lutzi Lutz's Cave Pseudoscorpion G1 VA
• Kleptochthonius magnus G1 GA, TN
• Kleptochthonius microphthalmus G1G2 KY
• Kleptochthonius multispinosus AL
• Kleptochthonius myopius G1 TN
• Kleptochthonius orpheus Orpheus Cave Pseudoscorpion G1 WV
• Kleptochthonius packardi Packard's Cave Pseudoscorpion G2 IN, KY
• Kleptochthonius pluto G1 TN
• Kleptochthonius proserpinae Proserpina Cave Pseudoscorpion G1 WV
• Kleptochthonius proximosetus G1 VA
• Kleptochthonius regulus G1G2 VA
• Kleptochthonius rex G1 TN
• Kleptochthonius similis G1 VA
• Kleptochthonius stygius G1 TN
• Kleptochthonius tantalus G1 TN
• Labidostomma neotropica TN
• Laccophilus maculosus Dingy Diver G5
• Lacrimacandona wisei GNR TX
• Lacunicambarus diogenes Devil Crawfish G5 IL, KY
• Laelaps cavernicola KY
• Larca aalbui Aalbu's Cave Pseudoscorpion G1 CA
• Larca cavicola Grand Canyon Cave Pseudoscorpion G1G2 AZ
• Larca guadalupensis Guadalupe Cave Pseudoscorpion G1G2 TX
• Larca laceyi Lacey's Cave Pseudoscorpion G1 CA
• Larca welbourni G1G2 AZ
• Lascoria ambigualis Ambiguous Moth G5 AL
• Latrodectus variolus Northern Black Widow GNR TN
• Lebia ornata Ornate Harp Ground Beetle G5 AL
• Leia cuneola AL, GA
• Leiobunum aldrichi Aldrich's Harvestman GNR AL
• Leiobunum calcar GNR TN
• Leiobunum longipes KY
• Leiobunum politum GNR
• Leiobunum vittatum Eastern Harvestman
• Lepidocyrtus atropurpureus KY
• Lepidocyrtus helenae G3 TN
• Lepidocyrtus paradoxus GNR
• Lepidocyrtus usitatus
• Lepthyphantes leprosus Household Fine Sheetweaver GNR IL
• Leptocera atra NM
• Leptocera caenosa GNR GA
• Leptopeza compta GNR
• Leptotrombidium myotis GA
• Lesteva cribratula AL
• Lesteva pallipes G5 AL, GA, IA, IL, IN, KY, TN
• Lestodiplosis grassator GNR
• Lestodiplosis satiata
• Lethemurus missus Missus Cave Springtail G4 CO, IL, IN, KY, MO, Mexico, TN
• Leucauge venusta Orchard Orbweaver GNR AL, IL, KY
• Leucohya heteropoda
• Leucohya texana G1G2 TX
• Leydigia leydigi Gewone Breedstaartwatervlo FL
• Liagoceradocus lonomaka G1G2 HI
• Liancalus genualis GNR GA, IN
• Ligidium elrodii G4 AL, AR, GA, IL, KY, TN, VA, WV
• Ligidium kofoidi G1G2 CA
• Limomyza cavernicola CO
• Limonia annulata Syyssienikiekko
• Limonia badia GNR
• Limonia indigena GNR
• Limonia maculicosta GNR
• Limonia stulta AR
• Linopodes mammouthia KS, KY
• Liocranoides archeri Archer's Two-clawed Cave Spider G2 AL, TN
• Liocranoides coylei TN, VA
• Liocranoides tennesseensis G1 TN
• Liocranoides unicolor GU AL, GA, KY, TN
• Liposcelis decolor Book Louse GA
• Liposcelis divinatoria KY
• Lirceolus bisetus G1G2 TX
• Lirceolus cocytus GNR TX
• Lirceolus hardeni G2G3 TX
• Lirceolus nidulus GNR Mexico, TX
• Lirceolus pilus G2G3 TX
• Lirceolus smithii Texas Troglobitic Water Slater G1G2 TX
• Lirceus bicuspidatus G3 AR
• Lirceus bidentatus G1 AR
• Lirceus bisetus VA
• Lirceus culveri Rye Cove Cave Isopod G1 VA
• Lirceus fontinalis Lower Ohio Waterslater GNR GA, IL, KY, TN
• Lirceus garmani GNR KS, OK
• Lirceus holsingeri VA
• Lirceus hoppinae Blunt-Toothed Springslater GNR MO, OK
• Lirceus littonensis VA
• Lirceus orndorffi VA
• Lirceus slayorum Flat Waterslaters MO
• Lirceus usdagalun Lee County Cave Isopod G1 VA
• Lirceus zigleri Flat Waterslaters GNR VA
• Lissocreagris eurydice G1 AL
• Lissocreagris nickajackensis G1G2 AL, TN
• Lissocreagris persephone G1 AL
• Lissocreagris pluto G1 AL
• Lissocreagris subatlantica G3 AL, GA
• Lissocreagris valentinei Valentine's Cave Pseudoscorpion G1 VA
• Litargus balteatus Stored Grain Hairy Fungus Beetle GNR IA
• Lithobius atkinsoni AL, FL, GA, TN
• Litocampa cookei Cooke's Cave Dipluran G5 AL, GA, KY, TN, VA
• Litocampa fieldingae Fielding's Cave Dipluran G2G3 VA, WV
• Litocampa henroti G1G2 AL
• Litocampa hoffmani G3 VA
• Litocampa jonesi G2G3 KY, TN
• Litocampa pucketti Puckett's Cave Dipluran G1G2 VA
• Litocampa valentinei G5 AL, TN
• Lophomus skamania WA
• Loxosceles panama Violin Spiders
• Lustrochernes minor
• Lycosa howarthi G1G2 HI
• Lymantes nadineae GNR TX
• Macrobrachium carcinus Bigclaw River Shrimp G5 FL
• Macrocera hirsuta IN
• Macrocera nobilis GNR AR, IL, KY, OK, TN
• Macrocheles penicilliger TN
• Macrocheles robustulus Mite TN
• Macrocheles stygius G1G2 KY
• Macrocheles troglodytes G1G2 KY
• Macrocyclops albidus White Copepod FL, GA, IL, IN, KY, TN
• Macrocyclops fuscus Giant Copepod IN, KY
• Macromastus umpqua G1G2 OR
• Maevia inclemens Dimorphic Jumper GNR GA
• Malaconothrus monodactylus IA
• Mangora placida Tuftlegged Orbweaver GNR AL
• Manota obscura IN
• Margarinotus egregius G5 GA
• Marpissa lineata Four-Lined Slender Jumping Spider GNR KY
• Mastigoproctus giganteus Giant Vinegaroon GNR FL
• Maymena ambita GNR AL, GA, IL, TN
• Mecyclothorax aa HI
• Mecynogea lemniscata Basilica Orbweaver GNR AL
• Megacyclops donnaldsoni Donaldson's Cave Copepod G3G4 GA, IN, KY, TN
• Megacyclops latipes IN, TN
• Megacyclops viridis Cyclopoid Copepod IN
• Megalothorax minimus IA, IL
• Megalothorax tristani IL
• Megaselia breviterga GA
• Megaselia cavernicola GNR AL, AR, GA, IA, IL, KY, TN
• Megaselia nigriceps GNR IN
• Megaselia rufipes Hump-Backed Fly GNR IN, KY, NM
• Megaselia spelunciphila GA
• Melanolestes picipes Black Corsair GNR IL
• Mermessus antraeus GNR IL, NM, TX
• Mermessus denticulatus Amerikaanse Kasdwergspin GNR AL, IL, NM
• Mermessus indicabilis GNR IL
• Mermessus maculatus Sheet-Web Spiders GNR AL, GA, IL, MO, TN
• Mermessus tridentatus Spider GNR AL, IL, TN
• Meropelopia flavifrons
• Mesaphorura iowensis GNR GA, IA
• Mesaphorura krausbaueri GA
• Mesaphorura pacifica GNR IA
• Mesaphorura silvicola IL
• Mesocyclops edax IL, IN, KY
• Meta ovalis Cave Orb Weaver G5 AL, AR, GA, IA, IL, IN, KY, MO, OK, TN, VA
• Metajapyx subterraneus KY
• Metalimnobia cinctipes GNR
• Metaltella simoni Hacklemesh Weaver GNR GA
• Metisotoma grandiceps IA
• Mexichthonius exoticus G1G2 TN
• Mexistenasellus coahuila Coahuila Groundwater Isopod G2G3 Mexico, TX
• Mexistenasellus floridensis Florida Cave Isopod G1 FL
• Mexiweckelia hardeni G2G3 TX
• Microbisium parvulum GNR IL, KY, TN
• Microcreagris grandis Great Basin Cave Pseudoscorpion G1G2 NV
• Microcyclops rubellus IL, IN, KY, TN
• Microcylloepus pusillus GNR TX
• Microvelia americana GNR GA, IL
• Miktoniscus barri Barr's Terrestrial Cave Isopod G2G4 IN, KY, TN
• Miktoniscus linearis AL
• Miktoniscus medcofi Small Alabama Sowbug GNR AL, FL, IL, NC, TN, VA, WV
• Miktoniscus morganensis AL
• Miktoniscus oklahomensis Racovitza's Cave Isopod G1G2 OK
• Miktoniscus racovitzai Racovitza's Terrestrial Cave Isopod G3G4 KY, OK, VA
• Mimetus notius Reticulated Pirate Spider GNR
• Mimetus puritanus Common Pirate Spider GNR AL
• Minicreagris pumila GNR AL, GA
• Mixojapyx reddelli G3G4 TX
• Mochlonyx cinctipes GNR
• Monopis crocicapitella Bird Nest Moth GNR AL, TN
• Monopsyllus wagneri IA
• Montanabathynella pecosensis TX
• Montanabathynella salish GNR MT
• Moraria cristata IN
• Mundochthonius cavernicola G1G2 IL, MO
• Mundochthonius holsingeri G1 VA
• Musca domestica Common House Fly GNR IN
• Muscina prolapsa Muscoid Fly GNR GA
• Mycetophila analis IN
• Mycetophila byersi GNR
• Mycetophila fisherae GNR
• Mycetophila ichneumonea GNR IN, TN
• Mycetophila ruficollis
• Mycetophila sordida GNR
• Mycomya nitida GNR
• Myodopsylla insignis Bat Flea GNR KY
• Myrmecina americana American Mite-Eating Ant G5 GA
• Mystacides sepulchralis Black Dancer Caddisfly G5
• Nadabius ameles MO
• Namiotkocypria haysensis TX
• Nampabius mycophor AL
• Nampabius turbator G1 VA
• Nannopetalum fontis AL
• Nannopetalum vespertilo NC
• Narceus americanus American Giant Millipede G5 AL, AR, TN
• Narceus annularis G5 TN
• Neanura hawaiiensis G1G2 HI
• Neanura muscorum Moss Springtail GNR IA
• Neanura persimilis GNR IL
• Neanura pseudoquadrioculata IL
• Neaphaenops tellkampfi G3G4 IN, KY
• Necrophilus pettitii GNR AL, TN
• Neelides minutus GNR GA, IA, IL
• Nelima elegans KY, TN
• Nelima paessleri Aggregating Harvestman GNR
• Nelsonites jonesi G2G3 KY
• Nelsonites walteri G3 TN
• Nemadus hornii AL, GA, TN
• Nemoura trispinosa IL
• Neoallochernes incertus G1G2 NM
• Neoallochernes stercoreus G4 TX
• Neobisnius paederoides GNR IL
• Neochthonius imperialis Empire Cave Pseudoscorpion G1 CA
• Neochthonius troglodytes G2G3 CA
• Neolithobius voracior GA
• Neoporus clypealis GNR FL
• Neoscona domiciliorum Red-Femured Spotted Orbweaver GNR
• Neospintharus trigonum Horned Parasitic Cobweaver GNR AL, IN
• Nepalomyia sombrea GA
• Neriene radiata Filmy Dome Spider G5 GA, IL, IN, KY
• Nesidiolestes ana Ana Wingless Thread Bug G1G2 HI
• Nesticus barri Barr's Cave Spider G3 AL, TN
• Nesticus barrowsi G1G2 TN
• Nesticus brimleyi G1G2 NC
• Nesticus carolinensis Linville Caverns Spider G2 NC
• Nesticus carteri Carter's Cave Spider GNR IN, KY, TN, VA, WV
• Nesticus cressleri GNR GA
• Nesticus dilutus Grassy Creek Cave Spider G1 TN
• Nesticus furtivus Racoon Mountain Caverns Cave Spider G1 TN
• Nesticus georgia Georgia Cave Spider G1G2 GA
• Nesticus gertschi G1 TN
• Nesticus holsingeri Holsinger's Cave Spider G3G4 VA
• Nesticus jonesi Cave Spring Cave Spider G1 AL
• Nesticus lula GNR GA
• Nesticus mimus G3 VA
• Nesticus paynei G3G4 TN, VA
• Nesticus pecki Monteagle Cave Spider GNR TN
• Nesticus potterius G1G2 CA
• Nesticus reclusus Lost Nantahala Cave Spider G3 NC
• Nesticus sodanus CA
• Nesticus stupkai TN
• Nesticus stygius G1G2 TN
• Nesticus tennesseensis Tennessee Cave Spider G3G4 TN, VA, WV
• Neuratelia sayi IN
• Nevadesmus hubbsi GNR NV
• Nevadesmus ophimontis NV
• Nevadesmus superstitiona AZ
• Niptus arcanus CA
• Nitidotachinus scrutator GNR IN
• Nitocrellopsis texana GNR TX
• Nopoiulus kochii Haakwang G5 KY, TN
• Notiobia terminata G5 AL
• Novobisium carolinense GA
• Novobisium ingratum GNR AL
• Nycteridopsylla chapini KY
• Oaphantes prometheus CA
• Occasjapyx kofoidi CA
• Ochrotrichia spinosa G5 AR
• Ocrepeira ectypa GNR AL
• Odiellus pictus Painted Harvestman GNR
• Odontotaenius disjunctus Patent Leather Beetle GNR IL
• Oecothea fenestralis GNR IN, KY, TN
• Oecothea specus Small Cave Sun Fly AL, AR, GA, IA, IL, IN, KY, TN, VA, WI
• Oliarus gagneri G1G2 HI
• Oliarus kalaupapae G1G2 HI
• Oliarus lorettae G1G2 HI
• Oliarus makaiki G1G2 HI
• Oliarus polyphemus G1G2 HI
• Oliarus priola G1G2 HI
• Oliarus waikau G1G2 HI
• Omalium rivulare Ocillate Rove Beetle GNR TN
• Omorgus alatus
• Omorgus amictus
• Omorgus batesi
• Omorgus brucki
• Omorgus carinatus
• Omorgus costatus
• Omorgus fuliginosus
• Omorgus lindemannae
• Omorgus punctatus
• Omorgus rubricans
• Omorgus suberosus Hide Beetle GNR
• Oncopodura cruciata G1G2 MT
• Oncopodura fenestra G2G3 TX
• Oncopodura hoffi Hoff's Cave Springtail G1G2 MO
• Oncopodura hubbardi G2 VA
• Oncopodura iowae G3G4 IA, IL, MO
• Oncopodura mala Malheur Cave Springtail G2 CA, OR
• Oncopodura prietoi G1G2 Mexico, NM
• Oncopodura subhoffi G3 CO
• Oniscus asellus Common Shiny Woodlouse GNR
• Onychiurus eous IA
• Onychiurus gelus G2G3 IA, WA, WI
• Onychiurus janus G2G3 AL, VA, WV
• Onychiurus obesus G3G4 IA, MN, MO, WI
• Onychiurus opus IA
• Onychiurus oregonensis G1G2 OR
• Onychiurus paro G1 AL
• Onychiurus parvicornis IA
• Onychiurus pipistrellae IL
• Onychiurus pseudoarmatus TN
• Onychiurus pseudofimetarius TN
• Onychiurus reluctus GNR IA, IL, Mexico, TN, WV
• Onychiurus similis IA
• Ophyiulus pilosus Furry Snake Millipede G5 AL, KY, TN
• Opiona catorycha OR
• Opiona graeningi CA
• Oppia nitens GNR IA
• Orchesella hexfasciata GNR IA
• Orchopeas leucopus Pulga GNR
• Orchopeas sexdentatus KY, VA
• Orconectes australis Southern Cave Crayfish G5 AL, KY, TN
• Orconectes barri Cumberland Plateau Cave Crayfish G2 KY, TN
• Orconectes incomptus Tennessee Cave Crayfish G2 TN
• Orconectes inermis Ghost Crayfish G5 IN, KY, TN
• Orconectes packardi Appalachian Cave Crayfish G2 KY, TN
• Orconectes pellucidus Mammoth Cave Crayfish G4 AL, IN, KY, TN
• Oregonasellus elliotti OR
• Oreonetides beattyi Beatty's Sheetweb Cave Spider GNR IN, MD, PA, TN, VA
• Oreonetides vaginatus Undergrowth Sheet-Web Weaver G5
• Oreophantes recurvatus G5
• Orfelia elegans
• Origanates rostratus GNR AL, TN
• Ormosia affinis Cranefly GNR
• Ormosia meigenii GNR IN
• Oropsylla arctomys GNR IA
• Orthocyclops modestus IL, IN, TN
• Orus rubens NM
• Oryzaephilus surinamensis Sawtoothed Grain Beetle GNR IA
• Osphranticum labronectum KY, TN
• Otiorhynchus ovatus Strawberry Root Weevil GNR
• Otostigmus cooperi
• Oxidus gracilis Greenhouse Millipede G5 AL, FL, GA, KY, OK, PA, TN, VA
• Oxyopes salticus Lynx Spider GNR AL
• Oxytelus exiguus IL
• Ozarkia alabama GNR AL
• Ozarkia arkansa AR
• Ozarkia blanda GNR AL
• Ozarkia georgia GNR GA
• Ozarkia novaegalleciae NM
• Ozarkia serena G1G2 AL
• Pachydesmus crassicutis G5 AL
• Pacificabathynella kalispellensis GNR MT
• Pacificabathynella ruthae GNR MT
• Pacificabathynella sequoiae GNR CA, WA
• Pacificabathynella stanfordi GNR MT
• Pacificabathynella yupik AK
• Packardesmus cavicola UT
• Paeromopus cavicolens CA
• Paitobius arienus AL
• Paitobius carolinae AL
• Paitobius juventus AL
• Palaemon kadiakensis Mississippi Grass Shrimp G5 FL
• Palaemon paludosus Eastern Grass Shrimp G5 FL
• Palaemonetes antrorum Balcones Cave Shrimp G2G3 TX
• Palaemonetes cummingi Squirrel Chimney Cave Shrimp GH FL
• Palaemonias alabamae Alabama Cave Shrimp G1 AL
• Palaemonias ganteri Mammoth Cave Shrimp G1 KY
• Paleonura petebellingeri G1 VA
• Pangaeus docilis
• Panstrongylus geniculatus Barbeiro
• Pantelozetes cavaticus TN
• Parabogidiella americana G2G3 TX
• Paracyclops canadensis IN
• Paracyclops chiltoni IN, KY
• Paracyclops poppei Copepod GNR KY
• Paragnetina media Embossed Stone G4
• Paraholsingerius smaragdinus GNR TX
• Parametriocnemus lundbeckii GNR
• Paramexiweckelia ruffoi Ruffo's Cave Amphipod G1G2 TX
• Paramoera lokowai G1G2 HI
• Paramoera paakai G1G2 HI
• Paramoera rua G1G2 HI
• Parasitus fimetorum TN
• Parasitus remberti IA
• Parasteatoda tepidariorum Common House Spider GNR AL, AR, GA, IL, KY, TN, VA
• Paratachys aaa HI
• Paratheridula perniciosa Cobweb Spiders
• Paravachonium bolivari
• Parazaona cavicola
• Paria sexnotata Juniper Paria GNR AR
• Parisotoma notabilis GNR FL, IA, IL, MN, MO, TN, WI
• Parobisium charlotteae G1G2 OR
• Parobisium petilum CA
• Parobisium yosemite CA
• Patrobus longicornis Long-Horned Patrobus Beetle G5 AL, IL, IN, KY, MO
• Pegoplata infirma GNR
• Pelegrina exigua GNR IL
• Pelegrina proterva Common White-Cheeked Jumping Spider G5 IL
• Penaeus setiferus Northern White Shrimp GNR FL
• Pericoma scotiae TN
• Periplaneta americana American Cockroach GNR
• Perissopalla flagellisetula AL
• Peromyscopsylla hesperomys GNR TN
• Phalangodes armata G3G4 IN, KY
• Phanetta subterranea Subterranean Sheetweb Spider G5 AL, AR, GA, IL, IN, KY, MO, NC, OH, TN, VA, WV
• Phaonia soccata GNR
• Phelister fulvulus
• Phelister luculentus Escarabajo Payaso
• Phidippus purpuratus Marbled Purple Jumper G5
• Philonthus cyanipennis Staph Beetle GA
• Philonthus lomatus G5 IN
• Phoberus capensis
• Phoberus pusillus
• Phoberus sulcatus Grooveneck Keratin Beetle
• Pholcus dade GA
• Pholcus jusahi VA
• Pholcus lanieri GA
• Pholcus phalangioides Cosmopolitan Cellar Spider GNR IL, KY, NM, TN
• Phronia exigua GNR
• Phronia flavipes GNR
• Phronia incerta IN
• Physocyclus enaulus NM
• Physocypria denticulata TX
• Physocypria globula TX
• Pimoa altioculata GNR
• Pinodytes pusio CA
• Pinodytes rothi OR
• Pirata alachuus GNR GA
• Pirata sedentarius GNR IL, TN
• Piratula insularis Lonely Wolf Spider G5 GA
• Pisaurina mira Nursery Web Spider G5 AL, IL
• Plathemis lydia Common Whitetail or Long-Tailed Skimmer G5 MO
• Platynus angustatus GNR KY
• Platynus cincticollis GNR IN
• Platynus parmarginatus GNR GA
• Platynus tenuicollis Slender Ground Beetle G5 AL, AR, IL, IN, KY, MO, TN, VA
• Plumatyla humerosa G2G3 CA
• Plutomurus californicus G2G3 CA, Mexico
• Plutomurus grahami G1 NM
• Pnyxia scabiei Potato Scab Gnat KY
• Poecilochirus carabi TN
• Poecilophysis extraneostella G2 VA, WV
• Poecilophysis pratensis Mite WV
• Poecilophysis weyerensis G3 IN, KY, TN, VA, WV
• Pogonognathellus bidentatus GNR AL, GA, IL, KY, TN, VA
• Pogonognathellus danieli VA
• Pogonognathellus dubius Ghost Silver Bullet Springtail GNR AL, GA, KY, TN
• Pogonognathellus flavescens AL, GA, IA, IL, IN, KY, MO, WI
• Pogonognathellus nigritus IL, TN
• Polycentropus barri G3 KY
• Polycentropus elarus G3 KY
• Polydesmus inconstans European Sculpted Millipede G4 IL, PA
• Polydrusus impressifrons Pale Green Weevil GNR
• Polygonia comma Eastern Comma G5 KY
• Polynoncus gemmingeri
• Ponera pennsylvanica Common Porthole Ant G5 KY
• Porcellio laevis Smooth Slater TN
• Porcellio scaber Common Rough Woodlouse GNR IN
• Porcellio spinicornis Painted Woodlouse GNR
• Porrhomma cavernicola Appalachian Cave Spider G5 AL, AR, GA, IA, IL, IN, KY, MD, MO, NC, OK, ON, PA, TN, VA, WV
• Porrhomma egeria Kelderkleinoogje
• Porrhomma terrestre Terrestrial Wide-Eyed Sheetweaver GNR IL
• Potamocypris fulva GA
• Pratherodesmus despaini CA
• Pratherodesmus ecclesia AZ
• Pratherodesmus voylesi AZ
• Prenolepis imparis American Winter Ant G5 AL
• Primicimex cavernis TX
• Prionochaeta opaca Small Carrion Beetle G5 AL, FL, GA, IL, IN, KY, MO, NC, TN
• Procambarus acherontis Orlando Cave Crayfish G1 FL
• Procambarus alleni Everglades Crayfish G4 FL
• Procambarus attiguus Silver Glen Springs Cave Crayfish G1 FL
• Procambarus blandingii Santee Crayfish G4
• Procambarus clarkii Red Swamp Crayfish G5 TX
• Procambarus cuevachicae
• Procambarus delicatus Bigcheek Cave Crayfish G1 FL
• Procambarus erythrops Santa Fe Cave Crayfish G1 FL
• Procambarus fallax Slough Crayfish G5 FL
• Procambarus franzi Orange Lake Cave Crayfish G1 FL
• Procambarus horsti Big Blue Spring Cave Crayfish G1 FL
• Procambarus leitheuseri Coastal Lowland Cave Crayfish G1G2 FL
• Procambarus lucifugus Light-fleeing Cave Crayfish G1G2 FL
• Procambarus milleri Miami Cave Crayfish G1 FL
• Procambarus morrisi Putnum County Cave Crayfish G1 FL
• Procambarus orcinus Woodville Karst Cave Crayfish G1 FL
• Procambarus paeninsulanus Peninsula Crayfish G5 FL
• Procambarus pallidus Pallid Cave Crayfish G1G2 FL, GA
• Procambarus pilosimanus
• Procambarus spiculifer White Tubercled Crayfish G5 FL
• Procambarus toltecae Toltecae Crayfish
• Procambarus versutus Sly Crayfish G5 FL
• Procambarus villalobosi
• Procaris hawaiana G1 HI
• Proceratium micrommatum
• Procladius bellus GNR GA
• Progomphus obscurus Common Sanddragon G5 GA
• Progradungula carraiensis Carrai Cave Spider
• Proisotoma frisoni IA
• Proisotoma minuta Springtail GNR MN
• Proisotoma sepulcralis IL
• Proisotoma veca IA
• Proisotoma vesiculata IA
• Prosimulium mixtum Mixed-Up Black Fly G5
• Prosimulium saltus GA
• Protolimnesia ventriplacophora TX
• Psephenus herricki Herrick's Water Penny Beetle G5 KY
• Pseudachorutes aureofasciatus GNR IA, IL
• Pseudachorutes saxatilis GNR IL
• Pseudachorutes subcrassoides IA
• Pseudanophthalmus abditus Concealed Cave Beetle G3 KY
• Pseudanophthalmus acherontis Echo Cave Beetle G1 TN
• Pseudanophthalmus alabamae Alabama Cave Beetle G2 AL
• Pseudanophthalmus alladini Alladin's Cave Beetle G3G4 AL
• Pseudanophthalmus assimilis West Wills Valley Cave Beetle G1G2 AL
• Pseudanophthalmus audax Bold Cave Beetle G1G2 KY
• Pseudanophthalmus avernus Avernus Cave Beetle G1 VA
• Pseudanophthalmus barberi G2G3 KY
• Pseudanophthalmus barri G1G2 IN
• Pseudanophthalmus beakleyi Beakley's Cave Beetle G3G4 KY, TN
• Pseudanophthalmus bendermani Benderman's Cave Beetle G1G2 TN
• Pseudanophthalmus caecus Clifton Cave Beetle G1 KY
• Pseudanophthalmus calcareus Limestone Cave Beetle G1 KY
• Pseudanophthalmus catherinae Catherine's Cave Beetle G1 TN
• Pseudanophthalmus catoryctos Lesser Adams Cave Beetle G1 KY
• Pseudanophthalmus cerberus G3G4 KY, TN
• Pseudanophthalmus chthonius G3 IN, KY
• Pseudanophthalmus ciliaris G3G4 KY, TN
• Pseudanophthalmus cnephosus Larue County Cave Beetle G1G2 KY
• Pseudanophthalmus colemanensis Coleman Cave Beetle G1 TN
• Pseudanophthalmus conditus Hidden Cave Beetle G1G2 KY
• Pseudanophthalmus cordicollis Little Kennedy Cave Beetle G1 VA
• Pseudanophthalmus cumberlandus G1G2 TN
• Pseudanophthalmus darlingtoni G3 KY
• Pseudanophthalmus deceptivus Deceptive Cave Beetle G1 VA
• Pseudanophthalmus delicatus Delicate Cave Beetle G3G4 TN, VA
• Pseudanophthalmus desertus G3 KY
• Pseudanophthalmus digitus G1G2 GA, TN
• Pseudanophthalmus distinguens G1G2 AL, VA
• Pseudanophthalmus egberti New River Valley Cave Beetle G1 VA
• Pseudanophthalmus elongatus G1G2 KY
• Pseudanophthalmus emersoni G1 IN
• Pseudanophthalmus englehardti Englehardt's Cave Beetle G1 TN
• Pseudanophthalmus eremita G1G2 IN, KY, OH
• Pseudanophthalmus exiguus G3G4 KY
• Pseudanophthalmus exoticus Exotic Cave Beetle G1 KY
• Pseudanophthalmus farrelli G1G2 TN
• Pseudanophthalmus fastigatus Tapered Cave Beetle G1 GA
• Pseudanophthalmus fluviatilis G3 AL
• Pseudanophthalmus fowlerae Fowler's Cave Beetle G1 TN
• Pseudanophthalmus frigidus Icebox Cave Beetle G1 KY
• Pseudanophthalmus fulleri G2G3 AL, GA, TN
• Pseudanophthalmus fuscus G4 WV
• Pseudanophthalmus georgiae Georgia Cave Beetle G1G2 GA
• Pseudanophthalmus globiceps G1 KY
• Pseudanophthalmus gracilis Clover Hollow Cave Beetle G1G2 VA
• Pseudanophthalmus grandis G4 WV
• Pseudanophthalmus hadenoecus Timber Ridge Cave Beetle G1 WV
• Pseudanophthalmus henroti GNR WV
• Pseudanophthalmus hesperus G1 TN
• Pseudanophthalmus higginbothami G2 WV
• Pseudanophthalmus hirsutus Cumberland Gap Cave Beetle G1G2 TN, VA
• Pseudanophthalmus hoffmani Hoffman's Cave Beetle G2G3 VA
• Pseudanophthalmus holsingeri Holsinger's Cave Beetle G1 VA
• Pseudanophthalmus horni Garman's Cave Beetle G3 KY
• Pseudanophthalmus hortulanus Garden Cave Beetle G1 VA
• Pseudanophthalmus hubbardi Hubbard's Cave Beetle G1 VA
• Pseudanophthalmus hubrichti Hubricht's Cave Beetle G1 VA
• Pseudanophthalmus humeralis G2 TN
• Pseudanophthalmus hypertrichosis G3 WV
• Pseudanophthalmus hypolithos G1 KY
• Pseudanophthalmus illinoisensis Illinois Cave Beetle G1 IL
• Pseudanophthalmus inexpectatus Surprising Cave Beetle G1G2 KY
• Pseudanophthalmus inquisitor Inquirer Cave Beetle G1 TN
• Pseudanophthalmus insularis Baker Station Cave Beetle G1 TN
• Pseudanophthalmus intermedius Intermediate Cave Beetle G2 TN
• Pseudanophthalmus intersectus Crossroads Cave Beetle G1G2 VA
• Pseudanophthalmus jonesi Grassy Cove Cave Beetle G1G2 AL, TN
• Pseudanophthalmus krameri Kramer's Cave Beetle G1 OH
• Pseudanophthalmus krekeleri Rich Mountain Cave Beetle GX WV
• Pseudanophthalmus lallemanti G1 WV
• Pseudanophthalmus leonae G1 IN
• Pseudanophthalmus limicola Maddens Cave Beetle G1G2 VA
• Pseudanophthalmus lodingi G1G2 AL
• Pseudanophthalmus loganensis G2G3 KY, TN
• Pseudanophthalmus longiceps Long-headed Cave Beetle G1G2 TN, VA
• Pseudanophthalmus macradyi Macrady's Cave Beetle G1G2 TN
• Pseudanophthalmus major Beaver Cave Beetle G1 KY
• Pseudanophthalmus menetriesi G3 KY
• Pseudanophthalmus meridionalis G2 AL
• Pseudanophthalmus montanus Dry Fork Valley Cave Beetle G1 WV
• Pseudanophthalmus nelsoni Nelson's Cave Beetle G2 VA
• Pseudanophthalmus nickajackensis Nickajack Cave Beetle G1 AL, TN
• Pseudanophthalmus nortoni Norton's Cave Beetle G1 TN
• Pseudanophthalmus occidentalis Western Cave Beetle G1G2 TN
• Pseudanophthalmus ohioensis Ohio Cave Beetle G1 OH
• Pseudanophthalmus orientalis Surprising Cave Beetle G2G3 KY
• Pseudanophthalmus orthosulcatus G1 WV
• Pseudanophthalmus packardi Packard's Cave Beetle G1G2 KY
• Pseudanophthalmus pallidus Pale Cave Beetle G1G2 TN
• Pseudanophthalmus paradoxus Ridetop Cave Beetle G1 TN
• Pseudanophthalmus parvicollis Hupps Hill Cave Beetle G1 VA
• Pseudanophthalmus parvus Tatum Cave Beetle GH KY
• Pseudanophthalmus paulus Nobletts Cave Beetle G1 TN
• Pseudanophthalmus paynei Payne's Cave Beetle G1 TN
• Pseudanophthalmus petrunkevitchi Petrunkevitch's Cave Beetle G1G2 VA
• Pseudanophthalmus pholeter Greater Adams Cave Beetle G1 KY
• Pseudanophthalmus pilosus G2G3 KY
• Pseudanophthalmus pontis Natural Bridge Cave Beetle G1 VA
• Pseudanophthalmus potamaca South Branch Valley Cave Beetle G3G4 VA, WV
• Pseudanophthalmus praetermissus Overlooked Cave Beetle G1 VA
• Pseudanophthalmus princeps G1G2 KY, TN
• Pseudanophthalmus productus G3G4 TN
• Pseudanophthalmus profundus G2 AL
• Pseudanophthalmus pubescens G3 KY
• Pseudanophthalmus punctatus Spotted Cave Beetle G2 VA
• Pseudanophthalmus pusillus Tiny Cave Beetle G1 TN
• Pseudanophthalmus pusio Ellet Valley Cave Beetle G2G3 VA
• Pseudanophthalmus puteanus Old Well Cave Beetle G1G2 KY
• Pseudanophthalmus quadratus Straley's Cave Beetle G1 VA
• Pseudanophthalmus rittmani G1G2 KY
• Pseudanophthalmus robustus Robust Cave Beetle G3G4 TN
• Pseudanophthalmus rogersae Roger's Cave Beetle G1 KY
• Pseudanophthalmus rotundatus Rotund Cave Beetle G2 TN, VA
• Pseudanophthalmus sanctipauli Saint Paul Cave Beetle G1G2 VA
• Pseudanophthalmus scholasticus Schoolhouse Cave Beetle G1 KY
• Pseudanophthalmus scutilis G1 TN
• Pseudanophthalmus seclusus Rye Cove Cave Beetle G2G3 VA
• Pseudanophthalmus senecae Seneca Cave Beetle G1 WV
• Pseudanophthalmus sequoyah Sequoyah Cave Beetle G1 AL
• Pseudanophthalmus sericus Silken Cave Beetle G1 VA
• Pseudanophthalmus shilohensis Shiloh Cave Beetle G2 IN
• Pseudanophthalmus sidus Meredith Cave Beetle G1 TN
• Pseudanophthalmus simplex Simple Cave Beetle G1G2 TN
• Pseudanophthalmus simulans Cub Run Cave Beetle G1 KY
• Pseudanophthalmus solivagus G1G2 KY
• Pseudanophthalmus steevesi Steeves' Cave Beetle G1G2 AL
• Pseudanophthalmus striatus G2G3 KY
• Pseudanophthalmus stricticollis Marengo Cave Beetle G4 IL, IN
• Pseudanophthalmus sylvaticus GNR WV
• Pseudanophthalmus templetoni Templeton's Cave Beetle G1 TN
• Pseudanophthalmus tenebrosus Stevens Creek Cave Beetle G1 KY
• Pseudanophthalmus tennesseensis G3 TN
• Pseudanophthalmus tenuis G4 IN
• Pseudanophthalmus thomasi Thomas' Cave Beetle G1G2 VA
• Pseudanophthalmus tiresias Indian Grave Point Cave Beetle G1 TN
• Pseudanophthalmus transfluvialis G1G2 KY
• Pseudanophthalmus troglodytes Louisville Cave Beetle G1 KY
• Pseudanophthalmus tullahoma Duck River Cave Beetle G1G2 TN
• Pseudanophthalmus umbratilis G2G3 KY
• Pseudanophthalmus unionis Union County Cave Beetle G1G2 TN
• Pseudanophthalmus valentinei Valentine's Cave Beetle G3G4 TN
• Pseudanophthalmus vanburenensis G1 TN
• Pseudanophthalmus ventus Blowing Cave Beetle G1 TN
• Pseudanophthalmus vicarius Vicariant Cave Beetle G2G3 VA
• Pseudanophthalmus virginicus Maiden Spring Cave Beetle G1 VA
• Pseudanophthalmus wallacei Wallace's Cave Beetle G1 TN
• Pseudanophthalmus youngi Young's Cave Beetle G3G4 IN
• Pseudobaicalasellus bowmani Natural Bridge Cave Isopod G1 VA
• Pseudobaicalasellus henroti Henrot's Cave Isopod G2 VA
• Pseudobaicalasellus holsingeri Holsinger's Cave Isopod G5 MD, VA, WV
• Pseudobaicalasellus incurvus Incurved Cave Isopod G2G4 TN, VA
• Pseudobaicalasellus magniezi VA
• Pseudobaicalasellus mausi G2 MD, VA
• Pseudobaicalasellus vandeli Vandel's Cave Isopod G3G4 MD, VA
• Pseudocandona albicans GNR TX
• Pseudocandona jeanneli Jeannel's Cave Ostracod G3 IN, KY, TN
• Pseudocandona marengoensis Marengo Cave Ostracod G1G2 IN
• Pseudogarypus hypogeus G1G2 AZ
• Pseudogarypus orpheus Music Hall Cave Pseudoscorpion G1 CA
• Pseudogarypus speleus G1G2 CA
• Pseudoleria parvitarsus GNR NM
• Pseudopolydesmus erasus TN
• Pseudopolydesmus pinetorum GNR AL, AR, GA, IL
• Pseudopolydesmus serratus Common Pink Flat-Back G5 AL, IN, PA, TN
• Pseudosinella aera G4 IL, TN
• Pseudosinella alba GNR MN, TN
• Pseudosinella argentea GNR AL, AR, IL, KY, MO, TN
• Pseudosinella bona G2 VA
• Pseudosinella boneti KY, TN
• Pseudosinella certa Gandy Creek Cave Springtail G1 WV
• Pseudosinella christianseni Christiansen's Cave Springtail G5 AL, GA, KY, TN, VA
• Pseudosinella collina GNR AL, TN
• Pseudosinella dubia G3 AR, Mexico, OK
• Pseudosinella duodecimpunctata KY, MO, TN, VA
• Pseudosinella erehwon G2 VA
• Pseudosinella espana Espana Cave Springtail G3 MO, Mexico, TN
• Pseudosinella espanita G1 KY, TN
• Pseudosinella extra G1G2 VA
• Pseudosinella flatua G1G2 NC, VA
• Pseudosinella folsomi GNR AL, MO
• Pseudosinella fonsa Fountain Cave Springtail G3G4 IN, OH, TN
• Pseudosinella georgia GA
• Pseudosinella gisini G3G4 Mexico, NC, TN, VA, WV
• Pseudosinella gisini carolina NC
• Pseudosinella gisini virginia VA
• Pseudosinella granda G3 VA
• Pseudosinella hirsuta Hirsute Cave Springtail G5 AL, GA, KY, Mexico, TN, VA
• Pseudosinella josemarii GNR WV
• Pseudosinella meganporteri G2 WV
• Pseudosinella nata G1 AL, Mexico, TN
• Pseudosinella ops VA
• Pseudosinella orba G3G4 KY, Mexico, NC, TN, VA, WV
• Pseudosinella pecki Peck's Cave Springtail G2G3 AL, FL, GA, NC, TN
• Pseudosinella rolfsi GNR AL
• Pseudosinella sexoculata KY, NM
• Pseudosinella spinosa Spiny Cave Springtail G5 AL, GA, Mexico, TN
• Pseudosinella testa Shelled Cave Springtail G2G3 AR, Mexico, VA, WV
• Pseudosinella vespera G2 NC, VA
• Pseudosinella violenta GNR AL, IA, TX, WI
• Pseudosinella vita G1G2 Mexico, NM
• Pseudotremia acheron G1G2 TN
• Pseudotremia aeacus G1G2 GA
• Pseudotremia amphiorax G1G2 KY
• Pseudotremia armesi G2 WV
• Pseudotremia barri Barr's Cave Millipede G2 TN
• Pseudotremia blacki Black's Cave Milliped G1 IN
• Pseudotremia burnsorum Burn's Cave Milliped G1G2 IN
• Pseudotremia callae Call's Cave Milliped G1 TN
• Pseudotremia carterensis G2G3 IN, KY
• Pseudotremia cavernarum Ellett Valley Pseudotremia Millipede G2G3 IN, KY, TN, VA
• Pseudotremia cerberus Cerberus Cave Milliped G1 VA
• Pseudotremia cercops G1 TN
• Pseudotremia cocytus TN
• Pseudotremia conservata TNC Cave Milliped G1G2 IN
• Pseudotremia contorta Twisted-gonopod Cave Milliped G1 VA
• Pseudotremia cookorum Cook's Cave Milliped G1G2 IN
• Pseudotremia culveri Culver's Cave Milliped G1 VA
• Pseudotremia deprehendor G1 TN, VA
• Pseudotremia douglasi Douglas' Cave Milliped G1 TN
• Pseudotremia eburnea G2G4 AL, GA, TN, VA
• Pseudotremia fergusoni Ferguson's Cave Milliped G1 VA
• Pseudotremia fongi GNR WV
• Pseudotremia fracta GA, TN
• Pseudotremia fulgida Greenbrier Valley Cave Millipede G3 WV
• Pseudotremia garlandae Garland's Cave Millipede G1 TN
• Pseudotremia handi GNR WV
• Pseudotremia hobbsi G4 VA, WV
• Pseudotremia hoffmani Hoffman's Cave Millipede GNR TN
• Pseudotremia hollidayi Holliday's Cave Milliped G1 TN
• Pseudotremia hubbardi Hubbard's Cave Milliped G1G2 VA
• Pseudotremia indianae Blue River Cave Millipede G4 IN
• Pseudotremia inexpectata Devault's Cave Milliped G1 VA
• Pseudotremia jaculohamatum Harpoon Cave Milliped G1 VA
• Pseudotremia johnholsingeri Holsinger's Cave Milliped G1 VA
• Pseudotremia kerboi GNR WV
• Pseudotremia laudermilki Laudermilk's Cave Millipede GNR KY
• Pseudotremia lethe G1 TN
• Pseudotremia lictor G1 TN
• Pseudotremia loomisi Loomis's Rough-backed Millipede G1 VA
• Pseudotremia lusciosa Germany Valley Cave Millipede G1 WV
• Pseudotremia manni Mann's Cave Millipede G1 TN
• Pseudotremia merops G1 KY
• Pseudotremia minos G1 AL, TN
• Pseudotremia momus G2 VA
• Pseudotremia nefanda Clark Cave Millipede G3G4 IN
• Pseudotremia nodosa G4 TN, VA
• Pseudotremia nyx G1 AL
• Pseudotremia orndorffi Orndorff's Cave Milliped G2 VA
• Pseudotremia peponocranium Pumpkin-headed Cave Milliped G1 VA
• Pseudotremia piscator Fisher Cave Milliped G1 VA
• Pseudotremia princeps South Branch Valley Cave Millipede G1 WV
• Pseudotremia purselli Pursell's Cave Milliped G1 IN
• Pseudotremia reynoldsae Reynolds Cave Millipede G1 IN
• Pseudotremia rhadamanthus G1G2 AL, TN
• Pseudotremia roebuckorum Roebuck's Cave Millipede G1 TN
• Pseudotremia ryensis Rye Cove Cave Milliped G1 VA
• Pseudotremia salifodina Jones' Saltpetre Cave Milliped G1 VA
• Pseudotremia salisae Salisa's Cave Milliped G2 IN, OH
• Pseudotremia schneiderae GNR WV
• Pseudotremia sheari Shear's Cave Millipede GNR TN
• Pseudotremia shelleyi Shelley's Cave Millipede GNR NC
• Pseudotremia spira G1 KY
• Pseudotremia styx GNR KY
• Pseudotremia tuberculata G3 VA
• Pseudotremia unca G1 KY
• Pseudotremia valga G1G2 TN, VA
• Pseudotremia wallaceae Wallace's Cave Millipede G1 TN
• Pseudotremia withersi Withers' Cave Millipede G1 TN
• Psilochorus cordatus
• Psychoda cinerea GNR KY
• Psychoda minuta GNR IN
• Psychoda phalaenoides GNR
• Psychoda pusilla GA
• Psychoda reevesi GA, TN
• Psychoda satchelli GNR
• Psychoda umbracola IL, TN
• Psychopomporus felipi GNR TX
• Psyllipsocus ramburii Cave Barklouse GNR AL, GA, IA, KY, NM, OK, TN
• Ptenothrix atra GNR IL, TN
• Ptenothrix marmorata GNR TN
• Ptenothrix quadrangularis TN
• Pterostichus coracinus G5 AL, IL
• Pterostichus lachrymosus G5
• Pterostichus relictus GNR AL, GA
• Ptomaphagus appalachianus AL, GA
• Ptomaphagus barri G2G3 TN
• Ptomaphagus bedfordensis TN
• Ptomaphagus californicus GNR CA
• Ptomaphagus cavernicola G4 AL, AR, FL, GA, IA, IL, MO, OK, TX
• Ptomaphagus chromolithus G2G3 AL, TN
• Ptomaphagus cocytus G1G2 AZ
• Ptomaphagus consobrinus GNR AL
• Ptomaphagus cumberlandus AL
• Ptomaphagus elabra
• Ptomaphagus episcopus G1G2 AL
• Ptomaphagus fecundus G1 TN
• Ptomaphagus fiskei G1G2 GA
• Ptomaphagus fumosus GA
• Ptomaphagus giaquintoi
• Ptomaphagus gypsum
• Ptomaphagus hatchi Hatch's Cave Fungus Beetle G3 AL, TN
• Ptomaphagus hazelae G1G2 AL
• Ptomaphagus hirtus Kentucky Cave Beetle G4 KY
• Ptomaphagus hubrichti G2G3 TN
• Ptomaphagus inyoensis CA
• Ptomaphagus julius G1G2 AL
• Ptomaphagus laticornis G1G2 AL
• Ptomaphagus leo
• Ptomaphagus loedingi G1G2 AL
• Ptomaphagus longicornis G3G4 AL
• Ptomaphagus nashvillensis TN
• Ptomaphagus neojonesi AL
• Ptomaphagus parashant AZ
• Ptomaphagus shapardi AR, OK
• Ptomaphagus solanum G1 AL
• Ptomaphagus spelaeus
• Ptomaphagus torodei Torode's Cave Fungus Beetle G1G2 AL
• Ptomaphagus ulkei AL
• Ptomaphagus valentinei Valentine's Cave Fungus Beetle G3G4 AL
• Ptomaphagus walteri G1G2 AL
• Ptomaphagus whiteselli G2G3 AL, GA
• Ptyoiulus impressus Flocculent Tailed Millipede G5
• Puliciphora suavis AL
• Puliciphora virginiensis GA
• Pygmarrhopalites altus G2G3 KY
• Pygmarrhopalites arcus GNR ID
• Pygmarrhopalites ashcraftensis G1 IN
• Pygmarrhopalites ater Black Medusa Cave Springtail G3 IL, IN
• Pygmarrhopalites benitus G1 TN
• Pygmarrhopalites bimus G3G4 IA, IN, KY, TN
• Pygmarrhopalites buffaloensis AR
• Pygmarrhopalites caedus G3 VA
• Pygmarrhopalites carolynae Carolyn's Cave Springtail G4 IL, IN, VA, WV
• Pygmarrhopalites clarus Clarus Cave Springtail G4 AR, MO, SD, VA, WA, WI, WV
• Pygmarrhopalites commorus G2G3 VA, WV
• Pygmarrhopalites dubius G2G3 AR, IA, MN
• Pygmarrhopalites fransjanssens IL
• Pygmarrhopalites hirtus GNR IA, IL, WI
• Pygmarrhopalites hubbardi CO
• Pygmarrhopalites incantator IL
• Pygmarrhopalites jay G2G3 OK
• Pygmarrhopalites lacuna G1G2 VA
• Pygmarrhopalites leonardwoodensis MO
• Pygmarrhopalites lewisi Lewis' Cave Springtail GNR IL, IN
• Pygmarrhopalites madonnensis Madonna Cave Springtail GNR IL
• Pygmarrhopalites marshalli G3 TN, VA
• Pygmarrhopalites obtusus G1 VA
• Pygmarrhopalites pavo G3 IN, MO, TN, VA, WV
• Pygmarrhopalites plethorasari MO
• Pygmarrhopalites pygmaeus GNR AL, AR, GA, IA, IL, KY, MO, TN, VA
• Pygmarrhopalites sacer G2 VA, WV
• Pygmarrhopalites salemensis IL
• Pygmarrhopalites sapo IL
• Pygmarrhopalites sextus G1 VA
• Pygmarrhopalites shoshoneiensis NV
• Pygmarrhopalites silvus G2 VA
• Pygmarrhopalites texensis G3G4 TX
• Pygmarrhopalites youngsteadtii AR
• Quedius alesi OK
• Quedius capucinus G5 KY
• Quedius erythrogaster G5 AL, GA, IL, TN, VA
• Quedius fulgidus Large Rove Beetle GNR AL, GA, IL, IN, KY
• Quedius mesomelinus Staph Beetle GNR IA, MN
• Quedius spelaeus GNR IA, IL, IN, WI
• Remasellus parvus G1G2 FL
• Rhadine austinica G1G2 TX
• Rhadine babcocki TX
• Rhadine bullis GNR TX
• Rhadine caudata G3 AL, GA, KY, TN
• Rhadine exilis G3 TX
• Rhadine grubbsi TX
• Rhadine howdeni TX
• Rhadine infernalis G2G3 TX
• Rhadine insolita G1G2 TX
• Rhadine ivyi TX
• Rhadine koepkei G1 TX
• Rhadine larvalis GNR AL, FL, GA, IL
• Rhadine longicollis NM, TX
• Rhadine noctivaga G1G2 TX
• Rhadine ozarkensis GH AR
• Rhadine persephone Tooth Cave Beetle G1G2 TX
• Rhadine reyesi GNR TX
• Rhadine rubra TX
• Rhadine russelli G1G2 TX
• Rhadine speca G2 TX
• Rhadine sprousei TX
• Rhadine subterranea G2 TX
• Rhadine tenebrosa G1G2 TX
• Rhagidia diversicolor WV
• Rhagidia varia G5 VA, WV
• Rhantus suturalis Cosmopolitan Diving Beetle MO
• Rheocyclops indiana Indiana Groundwater Copepod G1 IN, TN
• Rheocyclops virginianus VA
• Rhinocricus ocraceus
• Rhinotus panamanus
• Rhyacophila nigrita KY
• Robustocheles hilli AZ, GA, IN, KY, TN, VA, WA, WV
• Robustocheles occulta G2G3 AB, IA, WA
• Rotomelita ana G1G2 HI
• Rotomelita lokoa G1G2 HI
• Rudiloria trimaculata G5 VA
• Rudolfina cavernicola CO
• Rugathodes sexpunctatus Common Six-Spotted Cobweaver G5
• Rugilus dentatus GNR MO
• Rugosuscandona scharfi TX
• Ryloviella pilosa IN, KY
• Rymosia fasciata IN
• Rymosia filipes GNR IN, TN
• Rymosia triangularis GNR AL, IL
• Sabacon cavicolens North American Cavernicolous Harvestman GNR AL, AR, GA, IL, KY, MT, TN
• Saetigerocreagris phyllisae G1 CA
• Sagittocythere barri G5 AL, IN, KY, TN
• Sagittocythere stygia G1 KY
• Salmasellus howarthi GNR OR, WA
• Salmasellus steganothrix G2 AB, MT
• Scaphinotus andrewsii Andrew's Snail-Eating Beetle KY
• Scaphinotus unicolor AL
• Scatopse notata Black Compost Fly GNR IL
• Schaefferia asymmetrica CO
• Schaefferia steinmanni CO
• Schaefferia unica CO
• Schizocosa ocreata Brush-Legged Split Wolf Spider G5 IL
• Schizocosa saltatrix G5
• Schornikovdona bellensis TX
• Schrankia howarthi HI
• Sciaphilus asperatus Strawberry Root Weevil GNR
• Sciodrepoides latinotum GNR MO
• Sciodrepoides terminans G5 GA
• Sclerobunus cavicolens G1G2 MT
• Sclerobunus jemez NV
• Sclerobunus klomax GNR NM
• Sclerobunus madhousensis G1G2 UT
• Sclerobunus speoventus CO
• Sclerobunus steinmanni CO
• Sclerobunus ungulatus G1G2 NV
• Scoliocentra brachypterna GNR GA, IA, IL, IN, KY
• Scoliocentra fraterna GNR IN
• Scoliocentra tincta IN
• Scoliopteryx libatrix Herald Moth G5 AL, GA, IA, IL, IN, KY, OK, TN
• Scolopocryptops sexspinosus Eastern Fire Centipede GNR AL, GA, MO, TN
• Scoterpes alabama Alabama Cave Millipede AL
• Scoterpes austrinus G3G4 AL, GA
• Scoterpes blountensis TN
• Scoterpes copei G3G4 GA, KY, TN
• Scoterpes hesperus TN
• Scoterpes jackdanieli TN
• Scoterpes musicarustica TN
• Scoterpes nudus GA
• Scoterpes sollmani Sollman's Cave Millipede G1 IN
• Scoterpes stewartpecki Peck's Cave Millipede AL, TN
• Scoterpes syntheticus AL
• Scoterpes tombarri Barr's Cave Millipede KY, TN
• Scoterpes tricorner TN
• Scoterpes ventus G3 TN
• Scoterpes willreevesi Reeves' Cave Millipede AL, GA
• Scotinella redempta GNR IL
• Scutacarus strinatii IA
• Scutigera coleoptrata House Centipede GNR IL
• Scytodes intricata Spitting Spiders
• Scytonotus australis TN
• Scytonotus granulatus Granulated Millipede G5 AL, IN, KY, PA, TN
• Seborgia hershleri G1G2 TX
• Seborgia relicta G2G3 TX
• Sehirus cinctus White-Margined Burrower Bug GNR IL
• Selachochthonius heterodentatus
• Semionellus placidus Salmon Cherry Millipede G3 IL
• Sensillanura barberi GNR AR, TN
• Sensillanura illina IL
• Sepedophilus crassus G5 IA
• Sepedophilus littoreus Staph Beetle GNR GA
• Sequoiadesmus krejcae CA
• Shibaia longisensilla AR
• Sicifera bifurca GNR IL
• Sicifera dentata GNR IL, IN, OH
• Sigmocheir calaveras CA
• Sigmoria fumimontis TN
• Simulium parnassum Dark Black Fly GNR GA
• Simulium tuberosum Tubercled Black Fly G5
• Simulium venustum Whitestockinged Black Fly G5
• Simulium vernum
• Sinella agna G3G4 WV
• Sinella alata G5 IN, Mexico
• Sinella avita Avita Cave Springtail G3G4 IL, IN, KY, MO, Mexico
• Sinella baca G3G4 BC, CA, TX
• Sinella barri Barr's Cave Springtail G5 AL, AR, IL, IN, KY, MO, Mexico, TN, VA, WI
• Sinella basidens G3G4 IN, KY, TN
• Sinella caeca AL, IA, MN, MO, WI
• Sinella cavernarum G5 IL, IN, KY, LA, MD, MO, OH, PA, TN, VA, WA
• Sinella hoffmani Hoffman's Cave Springtail G5 KY, MD, Mexico, PA, TN, VA, WV
• Sinella krekeleri G3G4 KY, Mexico, WV
• Sinella tecta G1G2 CA
• Sinella yosiia G2G3 HI
• Sitophilus oryzae Rice Weevil GNR IA
• Skistodiaptomus pallidus GNR IN, KY
• Sminthurides lepus GNR TN
• Sminthurides malmgreni IL
• Sminthurinus henshawi GNR IL
• Soldanellonyx chappuisi G1 IN
• Soldanellonyx chapuisi G1 IN
• Soldanellonyx monardi Mite IN
• Soldanellonyx morardi G1 IN
• Solenopsis geminata Tropical Fire Ant
• Somatochlora tenebrosa Clamp-Tipped Emerald G5 AL
• Spelaeorchestia koloana Kauai Cave Amphipod G1G2 HI
• Spelaeorchestia pahoehoe HI
• Speleobama vana G1 AL
• Speleochus blanchardensis AR, AZ
• Speleochus croceus G1G2 AL
• Speleochus eurous G2G3 AL
• Speleochus ferus G1G2 AL, TN
• Speleochus macosar AR, AZ
• Speleochus steevesi G4 AL, TN
• Speleochus stygicus G1G2 AL
• Speleochus synstygicus G1 AL
• Speleomaster lexi G1G2 ID
• Speleomaster pecki G1G2 ID
• Speleonura kenchristianseni G1 VA
• Speleonychia sengeri G1G2 WA
• Speleonycta ozarkensis Ozark Cave Bristletail AR, OK
• Spelobia clunipes GNR VA
• Spelobia maculipennis GNR CO
• Spelobia pseudosetaria GNR CO
• Spelobia semioculata GNR IA, IL, TN, VA, WI
• Spelobia tenebrarum Cave dung fly G5 AL, AR, GA, IL, IN, KY, MO, NY, OK, PA, TN, VA, WV
• Spelobia tuberculosa GNR CO
• Spelungula cavernicola Nelson Cave Spider
• Speocirolana hardeni G2G3 TX
• Speodesmus bicornourus G2G3 TX
• Speodesmus castellanus TX
• Speodesmus echinourus G2G3 TX
• Speodesmus falcatus Sickled Cave Millipede GNR TX
• Speodesmus ivyi Ivy's Cave Millipede GNR TX
• Speodesmus reddelli Reddell's Cave Millipede GNR TX
• Speolepta leptogaster IN
• Speorthus reyesi TX
• Speorthus tuganbius G2G3 NM, TX
• Speoseya grahami G2G3 CA
• Speotrombicula trifurca
• Spermophora senoculata Shortbodied Cellar Spider GNR FL
• Sphaeridia serrata GNR IL
• Sphaeroderus stenostomus Small Snail-Eating Ground Beetle G5 GA
• Sphaeromicola moria G1G2 TX
• Sphendononema guildingii Quarenta-Pernas
• Spinanycta alabamensis Alabama Cave Bristletail AL
• Spiniphora slossonae GNR AL
• Steatoda triangulosa Triangulate Bud Spider GNR IL
• Stegana coleoptrata Pomace Fly
• Stelidota geminata Strawberry Sap Beetle GNR KY
• Stenistoderus rubripennis Red-Winged Rove Beetle GNR IA
• Stenochironomus pulchripennis GNR
• Stenolophus ochropezus G5 MO, TN
• Stenonema femoratum Cream Cahill G5 AR, IL
• Stenophilus californicus G1G2 CA
• Stenoponia americana GNR IA, TN
• Stenus alacer MO
• Sternopsylla distincta NM
• Striaria eldora G2G3 CA
• Strigamia branneri IA, VA
• Stygobromus abditus James Cave Amphipod G2G3 VA
• Stygobromus acicularis GNR MO
• Stygobromus ackerlyi G1G2 GA
• Stygobromus alabamensis Alabama cave amphipod G5 AL, AR, KS, LA, MO, MS, OK, TN, TX
• Stygobromus albapinus White Pine amphipod NV
• Stygobromus allegheniensis G5 MD, NY, PA, WV
• Stygobromus amicus Friendly Cave Amphipod G1 MD
• Stygobromus anacostensis DC
• Stygobromus araeus Tidewater Interstitial Amphipod G3 NC, VA
• Stygobromus arbucklensis Arbuckle Mountains Cave Amphipod GNR OK
• Stygobromus arizonensis Arizona Cave Amphipod G1 AZ
• Stygobromus bakeri TX
• Stygobromus balconis Balcones Cave Amphipod G2G3 TX
• Stygobromus baroodyi Rockbridge County Cave Amphipod G1 VA
• Stygobromus barri Barr's Cave Amphipod G2G3 MO, TN
• Stygobromus barryi G1 TN
• Stygobromus bifurcatus Bifurcated Cave Amphipod G3G4 TX
• Stygobromus biggersi Biggers' Cave Amphipod G2G4 MD, PA, VA, WV
• Stygobromus blinni Blinn's Cave Amphipod G1G2 AZ
• Stygobromus borealis Taconic Cave Amphipod G2G3 MA, NY, QC, VT
• Stygobromus boultoni Boulton's Cave Amphipod G1G2 AZ
• Stygobromus bowmani Bowman's Cave Amphipod G1G2 OK
• Stygobromus caecilius Cecil Groundwater Amphipod G1 MD
• Stygobromus canadensis Castleguard Cave Amphipod G1 AB
• Stygobromus carolinensis Carolina Seep Amphipod GH NC
• Stygobromus cherylae G1 CA
• Stygobromus clantoni Clanton's Cave Amphipod G4 AR, KS, MO, OK
• Stygobromus coloradensis Colorado Cave Amphipod G1G2 CO
• Stygobromus conradi Conrad's Cave Amphipod G1 VA
• Stygobromus cooperi Cooper's Cave Amphipod G1G2 WV
• Stygobromus cowani Cowan's Cave Amphipod G1 CA
• Stygobromus culveri Culver's Cave Amphipod G1 WV
• Stygobromus cumberlandus Cumberland Cave Amphipod G3G4 VA
• Stygobromus curroae Curro's Cave Amphipod G1G2 NM
• Stygobromus dejectus Cascade Cave Amphipod G1G2 TX
• Stygobromus dicksoni Dickson cave stygobromid G5 AL, GA, TN
• Stygobromus doughertyensis Dougherty Plain Cave Amphipod G1G2 FL, GA
• Stygobromus duplus G1G2 WA
• Stygobromus elatus G1 AR
• Stygobromus elliotti Elliott's Cave Amphipod G1G2 WA
• Stygobromus emarginatus Greenbrier Cave Amphipod G3 MD, WV
• Stygobromus ephemerus Ephemeral Cave Amphipod G1G2 VA
• Stygobromus estesi Craig County Cave Amphipod G4 VA
• Stygobromus exilis Central Kentucky Cave Amphipod G5 AL, KY, TN
• Stygobromus fecundus G1G2 TN
• Stygobromus felleri Feller's Groundwater Amphipod G1 MD
• Stygobromus fergusoni Ferguson's Cave Amphipod G1 VA
• Stygobromus finleyi Finley's Cave Amphipod G3G4 TN, VA
• Stygobromus flagellatus Ezell's Cave Amphipod G2G3 TX
• Stygobromus floridanus Florida Panhandle Cave Amphipod G1G2 CA, FL
• Stygobromus foliatus Rappahannock Spring Amphipod G2 MD, VA
• Stygobromus fontinalis G1G2 CO
• Stygobromus franzi Franz's Cave Amphipod G3G4 MD, PA, WV
• Stygobromus gallawayae Gallaway's Cave Amphipod G1 CA
• Stygobromus gardneri GNR AR, MO
• Stygobromus glacialis Glacier National Park Cave Amphipod G1 MT
• Stygobromus gracilipes G3G4 MD, PA, VA, WV
• Stygobromus gradyi Grady's Cave Amphipod G1 CA
• Stygobromus grahami Graham's Cave Amphipod G2 CA
• Stygobromus grandis G1 GA
• Stygobromus hadenoecus Devil's Sinkhole Amphipod G1G2 TX
• Stygobromus harai Hara's Cave Amphipod G1 CA
• Stygobromus hayi Hay's Spring Amphipod G1G2 DC, PA
• Stygobromus herbsti Herbst's Cave Amphipod G2G3 NV
• Stygobromus heteropodus Pickle Springs Amphipod G1G2 MO
• Stygobromus hoffmani Hoffman's Cave Amphipod G2 VA
• Stygobromus holsingeri Holsinger's Cave Amphipod G1G2 CO
• Stygobromus hubbardi Hupp's Hill Cave Amphipod G1 VA
• Stygobromus hubbsi Malheur Cave Amphipod G1G2 OR
• Stygobromus hyporheicus Hyporheic Amphipod G1 CA
• Stygobromus idahoensis Idaho Groundwater Amphipod G1 ID
• Stygobromus imperialis Imperial Cave Amphipod G1 CA
• Stygobromus indentatus Tidewater Amphipod G3 MD, NC, VA
• Stygobromus inexpectatus G1 AL
• Stygobromus interitus New Castle Murder Hole Cave Amphipod G1G2 VA
• Stygobromus interstitialis Interstitial Amphipod G1G3 CO
• Stygobromus iowae Iowa Cave Amphipod G2G3 IA, IL, MN
• Stygobromus jemezensis Jemez Mountains Groundwater Amphipod G1G2 NM
• Stygobromus kenki Rock Creek Groundwater Amphipod G2 DC, MD, VA
• Stygobromus lacicolus Lake Tahoe Groundwater Amphipod G1 CA, NV
• Stygobromus lanensis Lane County Groundwater Amphipod G1G2 OR
• Stygobromus latus G1G3 WA
• Stygobromus leensis Lee County Cave Amphipod G1G2 VA
• Stygobromus limbus Border Cave Amphipod G1G2 TX
• Stygobromus longipes Long-legged Cave Amphipod G2G3 TX
• Stygobromus lucifugus Rubious Cave Amphipod G1G2 IL
• Stygobromus mackenziei MacKenzie's Cave Amphipod G1 CA
• Stygobromus mackini Southwestern Virginia Cave Amphipod G5 IN, KY, TN, TX, VA, WV
• Stygobromus mausi Round Hill Cave Amphipod G1 VA
• Stygobromus minutus G2G3 GA
• Stygobromus montanensis G1G2 MT
• Stygobromus montanus Mountain Cave Amphipod G1 AR
• Stygobromus morrisoni Morrison's Cave Amphipod G1G2 VA, WV
• Stygobromus mundus Bath County Cave Amphipod G1 VA
• Stygobromus myersae Myers' Groundwater Amphipod G1 CA, NV
• Stygobromus mysticus Secret Cave Amphipod G1 CA
• Stygobromus nanus G1 WV
• Stygobromus nortoni Norton's Cave Amphipod G2G3 TN
• Stygobromus obrutus Pittsylvania Well Amphipod G1G2 VA
• Stygobromus obscurus G1G2 MT
• Stygobromus onondagaensis Onondaga Cave Amphipod G3 AR, KS, MO, OK
• Stygobromus oregonensis G1G2 OR
• Stygobromus ozarkensis Ozark Cave Amphipod G4 AR, MO, OK
• Stygobromus parvus Minute Cave Amphipod G2 VA, WV
• Stygobromus paveki Pavek's Groundwater Amphipod MD
• Stygobromus paxillus Prettyboy Groundwater Amphipod G1 MD
• Stygobromus pecki Peck's Cave Amphipod G1G2 TX
• Stygobromus pennaki Pennak Cave Amphipod G2G3 CO
• Stygobromus phreaticus Northern Virginia Well Amphipod G1 VA
• Stygobromus pizzinii Pizzini's Cave Amphipod G3G4 DC, MD, PA, VA
• Stygobromus pollostus Least Cave Amphipod G2G3 WV
• Stygobromus pseudospinosus Luray Caverns Amphipod G1 VA
• Stygobromus putealis Wisconsin Well Amphipod G2G3 WI
• Stygobromus puteanus G1G2 MT
• Stygobromus quatsinensis Quatsino Cave Amphipod G1G2 AK, BC
• Stygobromus rallus Narrow Groundwater Amphipod G1G3 WA
• Stygobromus redactus Pattons Cave Amphipod G1 WV
• Stygobromus reddelli G1G2 TX
• Stygobromus rudolphi Rudolph's Groundwater Amphipod G1 CA
• Stygobromus russelli Russell's Cave Amphipod G4 TX
• Stygobromus saltuaris Williamette Natonal Forest Groundwater Amphipod G1G2 OR
• Stygobromus scottsruni Scotts Run Groundwater Amphipod VA
• Stygobromus secundus G1 AB
• Stygobromus sextarius Capital Area Groundwater Amphipod G1 DC, MD, VA
• Stygobromus sheldoni Sheldon's Groundwater Amphipod G1 CA
• Stygobromus sierrensis Sierra Groundwater Amphipod G1 CA
• Stygobromus simplex Simple Cave Amphipod G1G2 CO
• Stygobromus smithi Alabama Well Amphipod G2G3 AL, TN
• Stygobromus sparsus Gregory Cave Amphipod G1 TN
• Stygobromus spinatus Spiny Cave Amphipod G2G3 VA, WV
• Stygobromus spinosus Blue Ridge Cave Amphipod G3 VA
• Stygobromus stegerorum Madison Cave Amphipod G1 VA
• Stygobromus stellmacki Stellmack's Cave Amphipod G1G2 PA
• Stygobromus subtilis Subtle Cave Amphipod G2 IL, MI, MO
• Stygobromus tahoensis G1 CA, NV
• Stygobromus tenuis G4 CT, DC, MA, MD, NY, PA, VA, WV
• Stygobromus trinus Trinity County Cave Amphipod G1 CA
• Stygobromus tritus Worn Groundwater Amphipod G1 MT
• Stygobromus urospinatus Spinose Cave Amphipod G1G3 CO
• Stygobromus utahensis Utah Cave Amphipod G1G2 UT
• Stygobromus vitreus Mammoth Cave stygobromid G4 AL, IN, KY, TN
• Stygobromus wahkeenensis Wahkeena Creek Groundwater Amphipod G1G2 OR
• Stygobromus wardi Ward's Groundwater Amphipod G1G2 CO
• Stygobromus wengerorum Wenger Cave Amphipod G1 CA
• Stygonyx courtneyi G1G2 OR
• Stygoparnus comalensis Comal Springs Dryopid Beetle G1G2 TX
• Stygoporus oregonensis G1G2 OR
• Superodontella cornifer GNR IL
• Superodontella substriata GNR IL
• Syngrapha alias Spruce Climbing Cutworm G5
• Syrphus rectus
• Tachinus fimbriatus G5 GA
• Tachinus fumipennis G5 IA
• Tachycines asynamorus Greenhouse Camel Cricket GNR AL, GA, IL, OK
• Tachypeza humeralis GNR
• Tachyporus maculipennis IL
• Tachys proximus GNR NM
• Tachys pumilus GNR MO
• Tachys scitulus G5 VA
• Tachyura lutea TN
• Taiyutyla loftinae CA
• Tanytarsus recurvatus GNR GA
• Taracus aspenae OR
• Taracus fluvipileus CA
• Taracus marchingtoni OR
• Taracus silvestrii G1G2 OR
• Taracus taylori GNR NV
• Taranucnus ornithes GNR AL
• Tarlina noorundi
• Tarnania tarnanii GNR
• Tartarocreagris altimana G1G2 TX
• Tartarocreagris amblyopa G1G2 TX
• Tartarocreagris attenuata G1G2 TX
• Tartarocreagris domina G1G2 TX
• Tartarocreagris grubbsi G1G2 TX
• Tartarocreagris hoodensis G1G2 TX
• Tartarocreagris infernalis G2G3 TX
• Tartarocreagris intermedia G1G2 TX
• Tartarocreagris proserpina G1G2 TX
• Tartarocreagris reyesi GNR TX
• Tartarocreagris texana Tooth Cave Pseudoscorpion G1G2 TX
• Tayshaneta anopica G1G2 TX
• Tayshaneta archambaulti GNR TX
• Tayshaneta bullis GNR TX
• Tayshaneta concinna G1G2 TX
• Tayshaneta fawcetti GNR TX
• Tayshaneta microps Government Canyon Bat Cave Spider G1 TX
• Tayshaneta myopica Tooth Cave Spider G1G2 TX
• Tayshaneta oconnorae GNR TX
• Tayshaneta sandersi GNR TX
• Tayshaneta sprousei GNR TX
• Tayshaneta vidrio GNR TX
• Tayshaneta whitei GNR TX
• Tectocepheus velatus GNR IA
• Tegenaria domestica Barn Funnel Weaver GNR AL, GA, IL, IN
• Tegenaria pagana Rural Funnel-Web Spider NM
• Telomerina cana AL, TN
• Telomerina chillcotti GNR TN, TX
• Telomerina flavipes GNR AR
• Tenuiphantes sabulosus GNR AL, IL, TN
• Terrilimosina racovitzai GNR IA, IL, NY, PA, WI
• Tethysbaena texana GNR TX
• Tetracion jonesi Jones' Cave Millipede G3G4 AL, TN
• Tetracion tennesseensis Tennessee Cave Millipede G2G3 TN
• Tetragnatha elongata Elongate Stilt Spider G5
• Tetragnatha laboriosa Long-Jawed Orb Weaver G5 IN
• Tetragnatha shoshone Amerikanische Streckerspinne GNR IL
• Tetragnatha versicolor Versicolor Long-Jawed Orbweaver G5 AL, KY
• Texamaurops reddelli Kretschmarr Cave Mold Beetle G1G2 TX
• Texanobathynella aaronswinki TX
• Texanobathynella bowmani GNR TX
• Texanobathynella coloradoensis TX
• Texanobathynella sachi CA
• Texella cokendolpheri Cokendolpher Cave Harvestman G1 TX
• Texella elliotti TX
• Texella hardeni G1G2 TX
• Texella hilgerensis TX
• Texella martensi CA
• Texella mulaiki G2G3 TX
• Texella reyesi Bone Cave Harvestman G2G3 TX
• Texella shoshone Shoshone Cave Harvestman G1 CA
• Texella tuberculata TX
• Texella welbourni G1G2 NM
• Texella whitei TX
• Texicerberus amistad GNR TX
• Texicerberus castilloi TX
• Texicerberus schotteae GNR TX
• Texiweckelia texensis G2G3 TX
• Texiweckeliopsis insolita G3 TX
• Texoreddellia aquilonalis TX
• Texoreddellia capitesquameo TX
• Texoreddellia coahuilensis Mexico, TX
• Texoreddellia media TX
• Texoreddellia occasus TX
• Texoreddellia texensis G4 TX
• Thalassaphorura encarpata Springtail IL
• Thalkethops grallatrix G1G2 NM
• Thaumatogryllus cavicola Vovanoes Cave Cricket G1G2 HI
• Theatops phanus G2G3 TX
• Theotima makua G2G3 HI
• Theridion flavonotatum AL
• Theridion glaucescens GNR AL
• Theridiosoma gemmosum Common Eastern Ray Spider G5 AL, GA, IL, IN
• Theridula opulenta Cobweb Spiders GNR AL
• Thermobia domestica Firebrat GNR IA
• Thesiastes fossulatus IL
• Thymoites marxi GNR AL, GA
• Thymoites minero G1G2 AZ
• Tidarren sisyphoides Tent Cobweb Weaver AL
• Tingupa pallida Tingupa Cave Millipede G4 AR, IL, MO, TN
• Tipula abdominalis Giant Crane Fly GNR GA
• Tipula algonquin GNR AR
• Tipula caloptera GNR
• Tmesiphorus costalis GNR AL
• Tolus appalachius Appalachian Cave Spider G3G4 AL, TN
• Tomocerus curtus IA
• Tomocerus dubius FL, KY
• Tomocerus flavescens GA, IL, TN
• Tomocerus vulgaris GNR TN, WI
• Tomoderus impressulus TN
• Toxidium compressum GNR IA
• Trachelipus rathkii Rathke's Woodlouse GNR KY, WV
• Traegaardhia gracilis
• Traegaardhia holsingeri AR, KY, MO, OK
• Traegaardhia paralleloseta G1 VA
• Traegaardhia similis AR, MO
• Trechus cumberlandus G2 KY, TN
• Trechus tennesseensis GNR TN
• Trechus tuckaleechee GNR TN
• Triacanthella copelandi G1 TN
• Trichobius major GNR FL, NM
• Trichocera fattigiana GA
• Trichocera hiemalis Winterpluimantennemug GNR
• Trichocera maculipennis GNR
• Trichocera regelationis Dooimug GNR IA, IL
• Trichomorpha capillata
• Trichoniscus provisorius Ansarisiiranen VA
• Trichoniscus pusillus Common Pygmy Woodlouse KY, OK, TN, VA
• Trichopetalum dux G4 KY
• Trichopetalum stannardi MD
• Trichopetalum uncum GNR AR, IN, MO
• Trichophya pilicornis Staph Beetle GNR MN
• Trichotichnus dichrous GNR AL
• Trichotichnus fulgens MO
• Tridenchthonius juxtlahuaca
• Trigenotyla blacki Black's cave millipede G1 OK
• Trigenotyla parca G2 AR
• Trimiomelba dubia GNR TN
• Triphosa haesitata Tissue Moth G5
• Trisetobisium fallax GNR AL
• Trochosa terricola Gewone Nachtwolfspin G5
• Troglocambarus maclanei North Florida Spider Cave Crayfish G1G2 FL
• Trombicula cavernarum
• Trombicula tibbettsi AL, TX
• Tropisternus collaris Collared Water Scavenger Beetle GNR AR
• Tropocyclops extensus IN
• Tropocyclops prasinus IL, IN, KY
• Trox aequalis Even Hide Scarab Beetle G5 GA
• Trox laticollis GNR IA
• Trox scaber Hide Beetle GNR
• Tuberochernes aalbui G1G2 CA
• Tuberochernes cohni GNR AZ
• Tuberochernes ubicki G1 AZ
• Tuberona leonidasi TX
• Tullbergia clavata IA, IL
• Tullbergia granulata IA
• Tullbergia macrochaeta IA
• Tychobythinus bythinioides GNR IL
• Tychobythinus hubrichti G1G2 KY
• Tychobythinus jonesi G1G2 AL
• Tychobythinus strinatii G1G2 TN
• Tylparua troglodytes HI
• Typhlobius caecus AL, GA
• Typhloelmis caroline GNR TX
• Typhloelmis finegan GNR TX
• Typhloelmis sanfelipe GNR TX
• Typhloelmis spangleri GNR TX
• Typhlogastrura alabamensis G1G2 AL
• Typhlogastrura christianseni G1 AL, TN
• Typhlogastrura fousheensis Foushee Cave Springtail G1 AR
• Typhlogastrura helleri Heller Cave Springtail GNR PA
• Typhlogastrura hubbardi G2G3 VA
• Typhlogastrura valentini Valentine's Cave Springtail G1 VA
• Typhlonesticus silvestrii Silvestri's Cave Spider CA, OR
• Tyrannochthonius alabamensis G1 AL
• Tyrannochthonius aladdinensis G1 AL
• Tyrannochthonius aralu G1 AL
• Tyrannochthonius archeri G1 AL
• Tyrannochthonius attenuatus G1 AL
• Tyrannochthonius avernicolus G1 AL
• Tyrannochthonius barri Barr's Cave Pseudoscorpion G1 AL
• Tyrannochthonius binoculatus G1 AL
• Tyrannochthonius chamberlini G1 AL
• Tyrannochthonius charon G1 AL
• Tyrannochthonius diabolus G1G2 AL
• Tyrannochthonius erebicus G1 AL
• Tyrannochthonius felix G1 AL
• Tyrannochthonius fiskei G1 TN
• Tyrannochthonius gnomus G1 AL
• Tyrannochthonius halopotamus G1 AL, TN
• Tyrannochthonius hypogeus G1 KY
• Tyrannochthonius infernalis G1 AL
• Tyrannochthonius jonesi Jones' Cave Pseudoscorpion G1 AL
• Tyrannochthonius muchmoreorum GNR TX
• Tyrannochthonius nergal G1 AL
• Tyrannochthonius orpheus G1G2 AL
• Tyrannochthonius osiris G1 AL
• Tyrannochthonius parvus G1G2 AL
• Tyrannochthonius pecki Peck's Cave Peudoscorpion G1 AL
• Tyrannochthonius pholeter G1 AL
• Tyrannochthonius pluto G1G2 AL
• Tyrannochthonius pupukeanus G1 HI
• Tyrannochthonius satan G1 AL
• Tyrannochthonius sheltae Shelta Cave Pseudoscorpion G1 AL
• Tyrannochthonius skeletonis G1 AL
• Tyrannochthonius steevesi Steeves' Cave Pseudoscorpion G1 TN
• Tyrannochthonius stonei HI
• Tyrannochthonius stygius G1 AL
• Tyrannochthonius tartarus G1 AL
• Tyrannochthonius tenuis G1 AL
• Tyrannochthonius torodei Torode's Cave Pseudoscorpion G1 AL
• Tyrannochthonius troglodytes G1G2 TX
• Ufocandona hannaleeae TX
• Ula elegans GNR
• Uloborus glomosus Featherlegged Orbweaver GNR AL, NM
• Ulomorpha pilosella GNR KY
• Uncinocythere ambophora G2G3 FL
• Uncinocythere equicurva
• Uncinocythere pholetera G1G2 MO
• Uncinocythere simondsi KY
• Uncinocythere warreni G1 AR, FL, GA
• Uncinocythere xania G3 AR, GA, IN, MO
• Uncinocythere zancla KY
• Uroblaniulus canadensis Sickle Tailed Millipede G5
• Uroctonus grahami G1G2 CA
• Uroseius infirmus TN
• Usofila gracilis G1G2 CA
• Uvarus texanus TX
• Vachonium boneti
• Vachonium maya
• Vaejovis carolinianus Southern Unstriped Scorpion G5 AL
• Varacosa avara Spurred Secretive Wolf Spider GNR IL
• Veigaia bakeri Baker's Cave Mite G1 IN, NM
• Veigaia kochi GNR
• Veigaia wyandottensis Wyandotte Cave Mite G1 IN
• Vetericaris chaceorum G1 HI
• Vitronura giselae IL, TN
• Vulcanochthonius aa HI
• Vulcanochthonius howarthi G1G2 HI
• Vulcanochthonius pohakuloae HI
• Wadotes calcaratus G5 GA, TN
• Wadotes saturnus GA
• Watobius anderisus AL
• Wormaldia moesta G4 KY
• Wulfila albens AL
• Xenolimosina sicula GNR CO
• Xenotrechus condei G1G2 MO
• Xenotrechus denticollis G1G2 MO
• Xenylla welchi Springtail GNR IL
• Yunohamella lyrica Lyric Cobweaver GNR AL, IN
• Zealeuctra narfi Northern Needlefly G4 IL
• Zosteractis interminata Zosteractis Cave Millipede G1 IL, MO
• Zygonopus krekeleri West Virginia Blind Cave Millipede G4 WV
• Zygonopus packardi Packard's Blind Cave Millipede G4 VA, WV
• Zygonopus weyeriensis Grand Caverns Blind Cave Millipede G3G4 VA, WV
• Zygonopus whitei Luray Caverns Blind Cave Millipede G3G4 VA, WV

Other resources

Catalogue of Life

RT

GBIF

54

ITIS

82696

iNaturalist

47120

NCBI Taxonomy

6656