Trichocnemis

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
Scientific classification
Kingdom:
Animalia
Phylum:
Arthropoda
Class:
Insecta
Order:
Coleoptera
Suborder:
Polyphaga
Family:
Cerambycidae
Subfamily:
Prioninae
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 the western United States and Baja California.[1]

There are two species:[1]

  • Trichocnemis pauper
  • Trichocnemis spiculatus – ponderosus borer[2]
    • T. spiculatus neomexicanus
    • T. spiculatus spiculatus

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


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