Trichocnemis spiculatus

Trichocnemis spiculatus is a species of wood boring beetle.

Description
Common names include pine sawyer, western pine sawyer, spined woodborer, and ponderosa pine borer. A taxonomic synonym is Ergates spiculatus. This beetle species develops on fallen ponderosa pines and Douglas firs. T. spiculatus is the largest species of wood boring beetle in Colorado.

Range
The range is within Western North America.

Ecology
As larvae they eat wood of dead and dying pines, their host plants are mainly ponderosa pine and Douglas fir. They lay eggs in bark crevices of these trees. The larvae bore tunnels through the sapwood and heartwood. They have a life cycle of several years long.

Taxonomy
Trichocnemis spiculatus contains the following subspecies:
 * Trichocnemis spiculatus spiculatus
 * Trichocnemis spiculatus neomexicanus