A Spined Woodborer (Trichocnemis spiculatus) on a chunk of Douglas Fir bark. This is the largest beetle to occur in BC. They can get up to 70mm in length (about 2.7 inches). This is the first individual that I have found alive. Normally I find them dead at the base of trees. These beetles lay their eggs in crevices of recently dead or dying pine trees, usually near the base or roots of the tree. In our area they target Douglas Firs. Their larvae are referred to as ‘timber worms’ spending a couple of years feeding on sapwood and heartwood.
They aren’t considered to be forestry pests because they only target dead or drying trees.
Adults fly at night and are attracted to moonlight. This is thought to help them disperse. This also means that they occasionally show up at lights - that’s where I found this one, hanging out under a light. I’ve read that they can be a bit bitey so I avoided handling it.
#Trichocnemisspiculatus #Ergatesspiculatus #SpinedWoodBorer #Goldstream #BCParks