Sternidius alpha Classification Family Cerambycidae > Subfamily Lamiinae > Tribe Acanthocinini > Genus Sternidius Diagnostic Features of Larvae Larva. Form slender, subdepressed; integument firm, often finely granulate, shining, sparsely clothed with very fine whitish hairs. Head slender; twice as long as anterior width, depressed, sides slightly constricted about middle; labrum transverse, about one and one-half times as wide as long, gradually rounded from just before posterior extremities, anterior half finely hairy; mandible rather robust, from side about one and one-half times as long as basal width, base dull granulate, cutting edge obliquely emarginate; antennal ring open behind; one pair of prominent ocelli. Ventral mouth-parts thin, mentum transverse, last joint of maxillary palpi one and one-half times as long as second, first and second subequal, shorter than last labial; ligula slender; anterior edge of hypostoma slightly curved; gula indistinct. Prothorax trapezoidal, slightly depressed, widest behind; pronotum anteriorly shining, regularly and sparsely haired, posteriorly shining, irregularly reticulated and striate; prosternum hairy, eusternum and sternellum shining, roughened; mesonotum and metanotum finely alutaceous to granulate, the latter faintly tuberculate, mesosternum and metasternum alutaceous to faintly tuberculate. Abdomen. Dorsal ampullae irregularly tuberculate in two indistinct rows, broken in middle; epipleurum protuberant on last three segments, tubercle oval, and bisetose, a faint chitinous pit at each end. Spiracles orbicular, about size of ocellus, not chitinous rimmed. Pupa. Form as adult, in life pinkish red in color; body covered with slender setiferous points as follows: two at each angle of base of labrum, and fourteen on front of head; five across anterior pronotum, middle ones small, two on lateral protuberance; mesonotum and metanotum glabrous; fine points on abdominal terga, last segment bearing four large ones. 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