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Eupterote asclepiades Felder comb. n.  
Sphingognatha asclepiades Felder, 1874, in Felder & Rogenhofer. Reise oest.
Fregatte Novara (Zool.) 2 (Abt. 2): pl 94: 1.
Tagora pallida Walker sensu: Strand, 1924, Gross-Schmett. Erde 10: 424; Holloway, 1976: 54; Barlow, 1982: 47.

Eupterote asclepiades
(.61 natural size)

Females in the group have a nacreous spot on the forewing disc. The male genitalia have the interior process of the valve narrow, somewhat triangular, apically serrate (see Eupterote muluana sp. n.).

Taxonomic notes. This species, the next and udiana Moore comb. n. form a group within the genus. The genitalia are rather elongate, the apical process of the valve broad, straight, produced, and the interior angle developed. E. udiana from Java is more uniform in facies than the sympatric asclepiades, has a small, more weakly scobinate aedeagus vesica and a rather short, obtuse, convolute interior process to the valve (Fig. 83). A related taxon (slide 69) flies in Sumatra. Bornean specimens of asclepiades are generally much larger than those from Sumatra and Java.

It has not been possible to locate the two female syntypes of pallida Walker (Silhet, Sumatra) but the description refers to grey  bands and a double window on the forewing disc, features more in keeping with Himalayan patula Walker females than with asclepiades. Therefore it seems advisable to fix this name on the Silhet locality.

Geographical range. Sundaland.

Habitat preference. The species is frequent in lowland rainforest, favouring hill dipterocarp forest, and during the Mulu survey it was taken most commonly in wet heath forest (kerangas).

Biology. Horsfield & Moore (1858-9) illustrated the larva of udiana as completely blackish brown, cylindrical, with dense secondary setae three times as long as the body diameter. The head is black with a central white stripe that broadens ventrally over the frons to enclose a black triangle at its apex flanked by a pair of smaller black marks. Barlow (1982) stated early instars have long white setae (asclepiades).

The host-plant given by Horsfield & Moore was Butea (Leguminosae), but Barlow (1982) indicated asclepiades was polyphagous. It has been reared from unspecified Zingiberaceae (gingers) by H.F.O'B. Traill.

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