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

Horreolanus orphanus Mitchell, 1955

Taxonomy

Kingdom Animalia
Phylum Arthropoda
Subphylum Chelicerata
Class Arachnida
Order Trombidiformes
Family Bogatiidae
Genus Horreolanus
Species Horreolanus orphanus Mitchell, 1955

Description

Diagnostic characters

Ecological class
Stygobiont
Realm
Aquatic
Troglomorphy
Troglomorphic

Distribution

Range

Known from Illinois in the Other karst region.

Continent

North America

Country

United States

States and provinces

Illinois

Counties

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

Karst regions

Other

Genetics

Molecular resources

MarkerMoleculeSequences LengthExemplar
28S nuclear 3 307-3800 bp KM100946.1
18S nuclear 1 1792-1792 bp AY620907.1
COI mitochondrial 1 570-570 bp KM101004.1

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

Download all 5 sequence records (CSV) Accession, marker, molecule type, length, GenBank definition and a direct link.

Specimens

Type material

Paratype ×5
Ohio State University Acarology Laboratory
Paratype ×4
Senckenberg Forschungsinstitut und Naturmuseum Frankfurt

Collections holding material

InstitutionLots
Ohio State University Acarology Laboratory 36
Senckenberg Forschungsinstitut und Naturmuseum Frankfurt 4
Illinois Natural History Survey 2

42 cataloged lots in 3 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 42 specimen records (CSV) Institution, catalog number, type status and preparation. No coordinates.

Conservation and management

State and federal status

Not listed under the U.S. Endangered Species Act

Other resources

Catalogue of Life
PK9DD
GBIF
2180688
ITIS
83478
iNaturalist
262281
NCBI Taxonomy
296197

How to cite this account

Horreolanus orphanus Mitchell, 1955. Cave Biology Data Portal, account SP-0372. https://cavebiology.org/species/horreolanus-orphanus/ (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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