Ataxia crypta Classification Family Cerambycidae > Subfamily Lamiinae > Tribe Pteropliini > Genus Ataxia Diagnostic Features of Larvae Larva. Form cylindrical, slender, elongate; integument smooth, shining, rather densely clothed with fine yellowish white hairs. Head very salient, thick, oval in cross section, sides parallel, then suddenly constricted at base; clypeus and labrum thin, latter fungiform, somewhat stalked; mandibles about one and one-half times as long as basal width, acute, cutting-edge obliquely emarginate; antennal ring closed; one pair of small black ocelli. Ventral mouth-parts rather thick; mentum little wider than long, not distinct at base, sunken; last joint of maxillary palpi longer than beadlike second, shorter than last labial; palpifer having a small fleshy process on outer face; ligula large; gula not distinct; hypostoma strongly protuberant, posteriorly developed into two obtuse conical protuberances. Prothorax cylindrical; pronotum defined by complete lateral sutures, posterior area embossed, white, very finely striate, anterior smooth; sternum glabrous except posterior angles, eusternum, and lateral angles of deep sternellum. Mesonotum with x-shaped sutures, lateral triangular areas densely hairy; metanotum, mesosternum and metasternum finely hairy, bearing two rows of tubercles. Abdomen cylindrical; ampullae very narrow, bounded by two lateral impressed lines, and bearing two rows of regular tubercles; epipleurum protuberant on all segments, tubercles very large, oval, having several setae but no chitinous pits; ninth segment swollen, very densely ciliate; tergum bearing a chitinous tipped, suddenly constricted spine, tip truncate; spiracles small, orbicular, peritreme slightly chitinized. Pupa. Form as in adult; front of head bearing a number of fine setae, and a group on mandible; pronotum sparsely setose, more abundantly on lateral margins; mesonotum and metanotum glabrous; abdominal terga bearing two transverse patches of dense, chitinous, setose points, much coarser and thicker on seventh tergum; caudal tergum reflexed in a thin broad flange, nearly as wide as segment, ventrally this segment very densely clothed with chitinous setae. 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