Acanthocinus obsoletus Classification Family Cerambycidae > Subfamily Lamiinae > Tribe Acanthocinini > Genus Acanthocinus Diagnostic Features of Larvae Larva. In form and general structure similar to Acanthocinus nodosus, but much smaller. Last joint of maxillary palpi equal in length to second (not shorter); first joint of labial palpi not twice as long as last. Proeusternum and sternellum smooth, shining; anterior border of hairs across protergum relatively longer. Pupa. Distinguished from Acanthocinus spectabilis by the smaller size and absence of chitinous points on the pronotum. Adapted from Craighead (1923). Biology and Economic Importance Members of this tribe are known from various host plant families. Species of this tribe are potentially invasive outside their native range. Selected References to Larvae Specimens Craighead, 1923