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Lepturopsis biforis
Classification
Diagnostic Features of Larvae
- Larva. Head very hairy on anterior portion, sides in front of middle rather suddenly tapering; epistoma thin; labrum thin, transverse, anterior margin rounded from middle and sparsely hairy; mandible very black, smooth, shining, dorsal angle flattened into a striate plate, apex very acute; one ocellus; last joint of maxillary palpi cylindrical, shorter than second; gula sutures slightly evident. Proeusternum and sternellum shining; mesonotum and metanotum dull, velvety pubescent except for a group of from three to five shining tubercles on each; femur and tibia subequal, tarsus very slender, attenuate. Ampullae seven, tubercles, large, contiguous, four rows on seventh. Spiracles small, oval, peritreme distinct. Abdomen unusually hairy. Pupa. Form like that of adult; front of head bearing several attenuate coarse setae; two groups of three to five on anterior margin of prothorax and a straight transverse band on posterior margin ; several on mesonotum and two groups on metanotum ; six to eight shorter setae on each abdominal tergum, becoming more numerous on seventh and eighth and forming a dense fringe on last. Adapted from Craighead (1923).
Biology and Economic Importance
- Specimens have been collected from a dead hollow chestnut (Castanea) log. The larvae mine the spring wood of hollow trees. Pupation occurs in a large oval cell. The pupae were congregated about knotholes through which the adults emerged. Adapted from Craighead (1923).
Selected References to Larvae Specimens
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