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Diploschema rotundicolle
Classification
Diagnostic Features of Larvae
- Mature larva. Form elongate, subcylindrical, rather slender. Head with genae and temples smooth and sparsely setose, the former ferruginous. Antennal foramen circular, not raised or produced dorsally. Front margin of frons rather broadly ferruginous, with a pair of paramedian, transverse impressions (each bearing a pair of setae) between upper and lower boundaries. Antenna with segment 3 at least four times as long as basal width and about half as long as segment 2, which is slightly elongate; supplementary process minute. Mandibles smooth, pitchy, each with a pair of stout setae on basal half of outer face. Labrum subcircular, rather sparsely covered with coarse pale setae. One pair of ocelli present close to antennal foramen; lens oval, convex; pigmented spot indistinct. Hypostoma smooth, glabrous, with front margin ferruginous laterally; gular sutures slightly raised. Maxilla with segment 3 of palpi cylindrical, about two-thirds length of segment 2. Labial palpi with segment 2 as long as segment 1, which is quadrate. Prothorax with posterior part of pronotum feebly 1ongitudina1ly rugose; anterior part smooth, testaceous, sparsely setose. Abdomen with dorsal ampullae each with two transverse furrows and a broad, shallow median furrow; rugose, glabrous. Ampullae on segments 4-7 more widely separated (the intersegmental skin being longer) than on segments 1-3. Tergite 9 without tubercles; anal lobes placed ventrally. Legs with unguiculus long, slender, pale and imbricately spinose. Spiracles with peritreme pale, narrowly oval, without marginal chambers. Length1 up to 45 mm.; maximum breadth (at prothorax) 9.25 mm. Larvae of this tribe appear to be closely related to the Cerambycini from which they differ mainly in the presence of only one pair of ocelli, the curiously extended and modified tenth abdominal segment and the proportionately longer intersegmental skin of segments 4-7. Adapted from Duffy (1960).
Biology and Economic Importance
- Biology unknown for members of this tribe. Species of this tribe are potentially invasive outside their native range.
Selected References to Larvae Specimens
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