Megacyllene mellyi Classification Family Cerambycidae > Subfamily Cerambycinae > Tribe Clytini > Genus Megacyllene Diagnostic Features of Larvae Mature larva. Distinguishable from that of M. acuta by its microspiculate pronotum and curiously modified spiracular peritreme. Length up to 26 mm; maximum breadth (at prothorax) 5.5 mm. Pupa. Distinguishable from that of M. acuta by its non-spinose abdominal tergite 8. Adapted from Duffy 1960). Biology and Economic Importance Members of this tribe are known from various host plant families and several genera (e.g., Chlorophorus, Xylotrechus) are considered economically important. Species of this tribe are potentially invasive outside their native range. More information is available at the CAPS website. Selected References to Larvae Specimens Duffy, 1960