Xylotrechus convergens Classification Family Cerambycidae > Subfamily Cerambycinae > Tribe Clytini > Genus Xylotrechus Diagnostic Features of Larvae Larva. Readily distinguishable from all other species by the fact that the posterior area of the pronotum does not bear the velvety pubescence, hut is dull and faintly reticulately rugulose or finely granulate (resembling Neoclytus); legs usually developed as a minute spine. Maxillary palpal joints subequal in length; first and second joints of antennae subequal, third shorter; labrum sub-orbicular; spiracles very broadly oval, peritreme thin; body hairs light castaneous. Pupa: Very minute, scattered, setiferous points on pronotum; mesonotum and metanotum unarmed; first six abdominal terga bearing small, acuminate, curved spines projecting posteriorly, becoming more numerous caudally; seventh bearing four larger recurved spines on posterior border and smaller ones on disc; eighth bearing two. Adapted from Craighead (1923). Biology and Economic Importance The larva has been found only in the dead wood of Crataegus. It mines deep into the heartwood, completely honeycombing it. Pupation occurs in the late spring. Adapted from Craighead (1923). Selected References to Larvae Specimens Craighead, 1923