Phymatodes hirtellus Classification Family Cerambycidae > Subfamily Cerambycinae > Tribe Callidiini > Genus Phymatodes Diagnostic Features of Larvae Larva. Genal bristles numerous and long; ocelli not distinct, a dark spot beneath chitin; last joint of maxillary palpi one and one-half times the length of second, shorter than last labial, basal joints transverse; second joint of antennae slightly longer than first, neither longer than thick; pronotum posteriorly bearing a few irregular markings, tending to be rugulose, median suture impressed; ampullae alutaceous, with a deep median furrow; pleural discs distinct on first, second and third segments; legs indistinctly three-jointed. Adapted from Craighead (1923). Biology and Economic Importance Members of this tribe are known from various host plant families and several species are considered economically important. Species of this tribe are potentially invasive outside their native range. Selected References to Larvae Specimens Craighead, 1923