Acanthocinus nodosus Classification Family Cerambycidae > Subfamily Lamiinae > Tribe Acanthocinini > Genus Acanthocinus Diagnostic Features of Larvae Larva. Form elongate, strongly depressed, slighting tapering posteriorly; integument firm, rather densely beset with fine yellowish-white hairs. Head very strongly depressed, sides suddenly constricted before middle; anterior margin very darkly chitinized; epistoma abruptly declivous, faintly carinate; labrum transverse, about twice as long as wide, anterior margin very finely and densely ciliate; mandible very slender, elongate from side, three times the condylar breadth, apex squarely emarginate; antennal ring angulate behind; ocelli not conspicuous. Ventral mouth-parts elongate; mentum twice as wide as long, distinct; maxillary palpi acutely conical, last joint little more than one-half length of second, shorter than last labial, first labial twice as long as last; anterior edge of hypostoma straight, abrupt; gula not distinct. Prothorax strongly depressed, about twice as wide as long; pronotum anteriorly shining, bearing a dense row of very short and fine hairs, posterior two-thirds velvety pubescent, except for numerous small glabrous spots; presternum densely hairy anteriorly; eusternum and sternellum shining, strongly reticulated; mesonotum shining except for anterior margin, reticulated; metanotum, mesosternum and metasternum bearing two transverse rows of velvety pubescence. Abdomen: Ampullae broad, flat, very finely asperate, pubescent; epipleurum strongly protuberant only on last three segments, tubercle oval, a chitinous pit at each extremity and numerous setae; middle abdominal spiracles orbicular, last rarely broadly oval. Anus trilobed. Pupa. Form as in adult. Pronotum bearing a few short chitinous points and many long slender hairs; mesonotum and metanotum glabrous; each abdominal tergum bearing a transverse row of chitinous reflexed points, more numerous at each side of median line; a group on ovipositor near base, and extremity of ovipositor bearing a circle of small incurved points. 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