Trechoblemus

Ganglbauer, 1891

Species Guides

1

A of small ground beetles in the Carabidae, tribe Trechini. occur across the Palearctic region and North America. The genus contains seven described species, including both widespread Palearctic and geographically restricted endemics in China, Japan, Korea, and the western United States.

Pronunciation

How to pronounce Trechoblemus: //ˌtrɛkoʊˈblɛməs//

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Identification

Distinguished from other trechine by a combination of small body size, reduced or absent wings (aptery or brachyptery), and specific modifications of the male genitalia. identification requires examination of aedeagal structure. The genus name references its similarity to both Trechus and Blemus.

Habitat

Found in moist, shaded microhabitats including leaf litter, moss, and rocky debris in forested areas. occupy montane and lowland environments.

Distribution

Palearctic region including northern Europe (Denmark, Norway, Sweden), Russia, China, North Korea, South Korea, and Japan. Disjunct North American in the western United States (Oregon).

Similar Taxa

  • TrechusSimilar small body size and general habitus; distinguished by differences in elytral structure and male genitalia .
  • BlemusShares reduced wing development; separated by characteristics of the pronotum and structure.

Sources and further reading