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Eupogonius tomentosus
Classification
Diagnostic Features of Larvae
- Larva. Form cylindrical, elongate; integument firm, smooth, shining, very sparsely clothed with yellowish brown hairs. Head depressed, widest just behind anterior margin, tapering anteriorly and strongly constricted about middle; labrum widest at base, roundly rectangular, a very few short hairs on anterior margin; anterior margin of clypeus flatly granulate; antennal cavity open; one pair of distinct ocelli; mandible about one and one-half times as long as basal width, finely granulate, cutting edge deeply emarginate. Ventral mouth-parts rather thick; mentum distinct, one and one-half times as wide as long, finely granulate; stipes finely granulate; last joint of maxillary palpi longer than second, about equal to basal, shorter than last labial; anterior edge of hypostoma strongly curved, finely granulate; gula indistinct. Prothorax rectangular, thick, widest behind; protergum anteriorly smooth, shining, having a border of short, stiff hairs and a few just in front of posterior striate area; prosternum beset with stiff hairs, finely granulate except for shining eusternum and sternellum; mesonotum shining; metanotum, mesosternum, and metasternum tuberculate. Abdomen cylindrical, ampullae having two well marked rows of regular tubercles, not divided in middle; epipleurum protuberant on all segments, tubercle very large, oval, four setae, no chitinous pits. Spiracles orbicular, smaller than ocellus, chitinous rimmed. Pupa. Form like that of adult; armed with stiff, short setae as follows: A central group on pronotum, two on each side of anterior margin, and two groups of about four on posterior margin; mesonotum and metanotum each with two converging rows; two transverse bands of three or four each on first six abdominal terga; last segment bearing a strong acute, recurved spine. 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
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