SUBFAMILY ARIOLICINI
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Titulcia Walker

Type species: eximia Walker, Borneo.

Titulcia species have a satiny white ground colour as in the previous two genera. That of the forewings is particularly satiny and usually divided into three blocks by bands in golden yellow, rusty red and brown. One of the forewing radial sector veins is lost, and there is no areole, so this sector only includes one rather distal bifurcation. In the hindwing, one of the sequence M2 to CuA2 is lost (M3 according to Hampson (1912), but loss of M2 is equally plausible), CuA1 is stalked with the remaining M vein. The labial palps are long, the third segment particularly so, with a subapical ring of hair.

In the male abdomen there is a tymbal structure on the basal sternite similar to that of Ariolica, flanked by long, slender coremata that bear numerous short projections (Fig 396). The eighth tergite has rather triangular apodemes. In the genitalia the valves have a basal exterior hair pencil, and may or may not have a relatively distal costal process. The aedeagus vesica contains a single cornutus.

 


In the female genitalia (eximia) the ostium is very broad, and the ductus tapers as an elongate funnel to a small, irregular but thick-walled and densely spined corpus bursae.

The genus is restricted to S.E. Asia and Sundaland. Most species occur in Borneo, the exceptions being T. javensis Warren (Java, Sumatra) and T. argyroplaga Hampson (Burma).

Kobes (1997) indicated that the larvae were tree feeders and formed typical boat-shaped cocoons.

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