Trechoblemus

Ganglbauer, 1891

A of small in the , 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 (aptery or brachyptery), and specific modifications of the male . 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 .
  • BlemusShares reduced development; separated by characteristics of the and structure.

Sources and further reading