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Haplidus testaceus
Classification
Diagnostic Features of Larvae
- Larva. Form very elongate, slender; integument rather firm, shining, sparsely covered with whitish hairs. Head transverse, twice as wide as long, rather broad in front, sides curved; mouth-frame scarcely corneous; clypeus and labrum thin, latter transversely oval; mandible tapering, long, basal piece short, about one-fourth length of distal, latter piceous, impression at base on outer face; antennae short, retractile, third joint globular, fourth slender; ocelli two, black, prominent, enclosed by very abruptly shouldered gena bearing numerous fine, short, white bristles; ventral mouth-parts fleshy, fused with gula; palpi long, slender, ultimate joint of maxillary palpi about twice length of penultimate, equal to last labial; gula wide, sutures strongly diverging behind. Prothorax transverse; pronotum posteriorly finely rugulose with a tendency to striation; sternal region smooth, shining; sternellar fold broadly fused at extremities into epipleurum Legs short, basal joint globular, second longer than third, tarsus twice as long as second. Abdomen dorsal ampullae alutaceous, shining, marked by two lateral and two transverse impressions and a median longitudinal furrow. Spiracles sub-rectangularly oval. Adapted from Craighead (1923).
Biology and Economic Importance
- Members of this tribe are known from various host plant families and at least one genus (Trichoferus) is considered economically important. Species of this tribe are potentially invasive outside their native range. More information is available at the CAPS website.
Selected References to Larvae Specimens
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