FAMILY LASIOCAMPIDAE
View Image Gallery of Family Lasiocampidae

Odonestis Germar

Type species: pruni Linnaeus.

This genus was reviewed by Tams (1935).

The venation of the forewing is typical. The hindwing has a weak humeral vein as in the previous two genera. The general colour is red. The forewing has two strong transverse fasciae, between them a white discal spot, and there is usually a weak, irregular submarginal.

The male genitalia are diagnostic. The eighth sternite is modified into a strongly sclerotised 'H' shape with a long, slender, often apically bifurcate process arising from the bar of the 'H' and directed posteriorly. There is no
cubile but a long, slender saccus. The valve is divided, with a long, upcurved dorsal arm and a short, more setose ventral one. The uncus is bifid or absent, with a lateral pair of setose processes on the tegumen. The aedeagus is short, with a long terminal ventral spur; there is one zone of scobination in the vesica.

The fully grown larva of pruni has a tuft of long hairs just anterior to the prothoracic spiracle, otherwise lateral processes are not evident. Just anterior to the tuft is a dark brown tubercle. The second thoracic segment bears a transverse rufous band dorsally, with bluish grey spots at each end. Short secondary setae are sparsely distributed over the rest of the body, slightly longer in a sublateral fringe. The skin is pale yellow with obscure, irregular, longitudinal grey streaks on each segment and more brownish ones laterally; the overall impression is greyish.

Sevastopulo (1946) reared the Indian O. bheroba Moore on Melastoma (Melastomataceae) and Rubus (Rosaceae). The head is hairy, blue-black, marked with an inverted white 'Y'. The body is laterally blackish, dorsally slate grey with a dark dorsal stripe and streaked white and reddish. T1 is black with longitudinal orange streaks; there is a lateral white hair-pencil. There are subdorsal white hair pencils on T2 and T3, segments that have the dorsum orange-pink. Between A4 and A5 is a pink edged black dorsal patch; A8 has an orange-brown dorsal hump with fine black hair, and subdorsal white pencils. There are a few white subdorsal hairs on other abdominal segments.

Apart from the Palaearctic pruni all species are found in the Oriental tropics and subtropics. Four species fly in Borneo, and the furthest species east is a member of the vita Moore complex from Sulawesi.

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