Phymatodes dimidiatus Classification Family Cerambycidae > Subfamily Cerambycinae > Tribe Callidiini > Genus Phymatodes Diagnostic Features of Larvae Larva. No genal bristles; ocelli prominent; last joint of maxillary palpi longer than second, equal to last labial, basal joints transverse; second joint of antennae slightly longer than first, latter as thick as long; pronotum posteriorly bearing a few striae, median suture impressed; ampullae alutaceously granulate; pleural discs most distinct on second and third segments, faint on first, fourth, and fifth; legs four-jointed; spiracles nearly orbicular; very small, peritreme thin. Adapted from Craighead (1923). Biology and Economic Importance The larva has been found in Picea, Tsuga and Larix. It mines beneath the bark, constructing a rather long prepupal mine in the wood. Adapted from Craighead (1923). Selected References to Larvae Specimens Craighead, 1923