Trichocnemis is a genus of beetles in the longhorn beetle family, Cerambycidae. Its species have often been treated as members of genus Ergates. Authors who separate the two genera differentiate Trichocnemis by a proportionally smaller head, the shape of the mandibles, the length of the antennae, and various other details in the morphology of the body and legs.[1]

Trichocnemis
Trichocnemis spiculatus
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Coleoptera
Family: Cerambycidae
Subfamily: Prioninae
Tribe: Callipogonini
Genus: Trichocnemis
LeConte, 1851
Species

2

Beetles in genus Trichocnemis have large, elongated bodies in shades of brown, usually with lighter elytra. They have small heads with big eyes and relatively short antennae. The mandibles are less than half the length of the head and curve inward.[1]

Trichocnemis species are distributed in western North America from Southwestern Canada to Baja California.[1]

There are two species:[1]

References

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  1. ^ a b c d Swift, I., et al. (2010). The genus Trichocnemis LeConte, 1851 (Coleoptera, Cerambycidae, Prioninae). Zookeys 61 33-46.
  2. ^ Trichocnemis spiculatus Images. CalPhotos. UC Berkeley.