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Cave Biology Data Portal
Subterranean biodiversity of North America and around the globe
AnimaliaArthropodaHexapodaInsectaColeopteraDytiscidaeHaideoporus

Edwards Aquifer Diving Beetle
Haideoporus texanus Young & Longley, 1976

Taxonomy

Kingdom Animalia
Phylum Arthropoda
Subphylum Hexapoda
Class Insecta
Order Coleoptera
Family Dytiscidae
Genus Haideoporus
Species Haideoporus texanus Young & Longley, 1976

Description

Diagnostic characters

Ecological class
Stygobiont
Realm
Aquatic
Troglomorphy
Troglomorphic
Maximum body length
2.5 mm

Distribution

Range

Known from Texas in the Edwards Plateau and Balcones karst region.

Continent

North America

Country

United States

States and provinces

Texas

Counties

County-level records have not been compiled for this taxon. Distribution is recorded at state and karst-region level.

Karst regions

Edwards Plateau and Balcones

Genetics

Molecular resources

MarkerMoleculeSequences LengthExemplar
other unknown 2 328-686 bp OR828554.1
12S mitochondrial 1 349-349 bp KF575612.1
16S mitochondrial 1 511-511 bp KF575564.1
COI mitochondrial 1 591-591 bp OR827450.1
COII mitochondrial 1 668-668 bp KF575461.1
EF1a nuclear 1 348-348 bp KF575421.1
H3 nuclear 1 328-328 bp KF575383.1

8 sequences, retrieved 23 August 2026. Counts change as sequences are deposited. Search GenBank.

Download all 8 sequence records (CSV) Accession, marker, molecule type, length, GenBank definition and a direct link.

Specimens

Type material

Holotype
National Museum of Natural History, Smithsonian Institution
Paratype ×3
Museum of Texas Tech University

Collections holding material

InstitutionLots
Edwards Aquifer Research and Data Center, Texas State University 36
Museum of Texas Tech University 3
National Museum of Natural History, Smithsonian Institution 2
Field Museum of Natural History 1
University of New Mexico 1

43 cataloged lots in 5 collections. Compiled from GBIF and not an exhaustive census: many collections are not yet digitised, and holdings are added continually. Search GBIF for specimen records.

Download all 43 specimen records (CSV) Institution, catalog number, type status and preparation. No coordinates.

Conservation and management

IUCN Red List

NE Not Evaluated

EXEWCRENVUNTLC

Assessed in 1996.

NatureServe

G1G2 Critically Imperiled to Imperiled

G1▲G2▲G3G4G5

Global rank last reviewed 21 August 2002.

Subnational ranks

Texas
S1 Critically Imperiled

State and federal status

Not listed under the U.S. Endangered Species Act

Other resources

Catalogue of Life
3J9SB
GBIF
1038450
ITIS
728356
iNaturalist
220862
NCBI Taxonomy
1458191
BOLD
BOLD:AHD4195

How to cite this account

Haideoporus texanus Young & Longley, 1976. Cave Biology Data Portal, account SP-0828. https://cavebiology.org/species/haideoporus-texanus/ (accessed 3 September 2026).

Data sources and funding are listed in the Acknowledgments.

Spotted something wrong on this page? Report a correction. Accounts are compiled from many sources and corrections from people who know the group are the most useful email we get.

Cave Biology Data Portal

Species accounts, distributions, and conservation status for the subterranean fauna of North America and around the globe, with resources for the cave and karst research community.

Text and data CC BY 4.0. Images all rights reserved unless stated.

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