Thalpius horni

(Chaudoir, 1872)

Thalpius horni is a of ground beetle in the Carabidae, first described by Chaudoir in 1872. It is currently classified within the Thalpius, though it was historically placed in Pseudaptinus as a subgenus. The species is known from the United States and is considered a synonym of Pseudaptinus horni in some taxonomic treatments. As a member of the tribe Zuphiini, it belongs to a group of carabid beetles often associated with particular microhabitats and prey specializations.

Pronunciation

How to pronounce Thalpius horni: /ˈθælpiəs ˈhɔːrni/

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Distribution

United States; North America. Distribution records indicate presence in the USA, with the documented in North American collections.

More Details

Taxonomic Note

Thalpius horni has a complex taxonomic history. Catalogue of Life lists it as a synonym with the accepted name being Pseudaptinus horni (Chaudoir, 1872), placing Thalpius as a subgenus of Pseudaptinus. However, iNaturalist and GBIF recognize Thalpius as a valid , with T. horni as a within it. This reflects ongoing taxonomic debate regarding the rank of Thalpius (genus versus subgenus). The species epithet 'horni' likely honors George Henry Horn (1840–1897), a prominent American coleopterist who described numerous North American species.

Collection Records

The is represented in entomological collections, with iNaturalist documenting 41 observations. It appears on desiderata lists for North American collectors, indicating it is not among the most commonly encountered species and may be of interest to completing regional faunal surveys.