Trechus cumberlandus
Barr, 1962
Trechus cumberlandus is a small ground beetle in the Trechinae, described by Thomas Barr in 1962. The is known from caves in the Cumberland region of the United States. It exhibits morphological adaptations typical of cave-dwelling carabids, including reduced elytral sculpturing.
Pronunciation
How to pronounce Trechus cumberlandus: //ˈtrɛk.əs ˌkʌm.bərˈlæn.dəs//
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Identification
Distinguished from other Trechus by the combination of small size (3.4–3.8 mm), brownish black coloration, and notably faint elytral striations. Cave provides additional context for identification. Definitive identification requires examination of male genitalia, as is standard for the .
Habitat
Exclusively associated with caves having high humidity. The is a troglobite or troglophile, dependent on stable cave microclimates.
Distribution
United States, specifically the Cumberland region (implied by epithet and known cave distribution patterns). GBIF records confirm presence in North America with specific locality data limited.
Similar Taxa
- Other Trechus speciesSurface-dwelling Trechus typically possess more pronounced elytral striations and are found in epigean . T. cumberlandus is distinguished by its reduced sculpturing and obligate cave association.
More Details
Taxonomic history
Described by Thomas Barr in 1962, a prominent authority on North American cave beetles. The epithet 'cumberlandus' references the Cumberland Plateau, a major karst region in the eastern United States known for significant cave biodiversity.