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Cymatura tarsalis
Classification
Diagnostic Features of Larvae
- Mature larva. Length up to 75 mm; maximum breadth (at prothorax) 13.5 mm. Head rather strongly depressed, parallel-sided; frontal sutures pale but distinct; antennal foramen open posteriorly. Mouthframe very strongly and broadly sclerotized. One pair of ocelli present; lens round, moderately convex; pigmented spot rather faint owing to sclerotization of lens. Hypostoma feebly convex, pale ferruginous, with front margin broadly pitchy; sutures pitchy, incurved; gula a pale median line. Antenna 2-segmented; segment 2 elongate, bearing a conical hyaline process. Maxilla with segment 3 of palp slightly more than half length of segment 2. Labial palp with segment 2 nearly two-thirds length of segment 1. Labrum transversely oval. Prothorax obliquely slanting; posterior third of pronotum with a pair of paramedian, curved, glabrous, ferruginous ridges which merge medially into three or four finer ridges; eusternum and sternellum entirely ferruginous and rather densely setose. Abdomen with ampullae smooth, matt, micro-granulate and devoid of spicules and tubercles. Tergite 9 unarmed. Segment 10 with anus a transverse cleft, the lobes dark testaceous and sparsely setose. Epipleurum protuberant on last three segments only. Pleural tubercle without sclerotized pits. Legs vestigial. Spiracles with peritreme rather narrowly oval, pale ferruginous and scarcely raised above general level of cuticle. Adapted from Duffy (1957).
Biology and Economic Importance
- Biology unknown for most members of this tribe. Species of this tribe are potentially invasive outside their native range.
Selected References to Larvae Specimens
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