View Image Gallery of Subfamily Drepaninae

Nordstromia Bryk

Type species: amabilis Bryk = vira Moore, N.E. Himalaya.

Synonym: Allodrepana Roepke (type species siccifolia Roepke, Sumatra).

Watson (1968) revised the genus (as Nordstroemia - see Fletcher (1979)). It has typical 'hooktip' forewing shape, and a buff or grey ground colour to the wings, with oblique, straight, darker fasciae: strong post- and antemedials, usually parallel, on the forewing, repeated over the dorsal half or third of the hindwing. The male antennae are usually bipectinate, the basal part of the shaft with brilliant, lustrous scales.

In the male abdomen, the eighth sternite is short, shaped like an inverted 'T'. The seventh sternite is also modified. The genitalia have the uncus long, slender, rod-like, apically bifid, and the socii broader, setose of equal length or shorter on either side. The valves are characteristically complex, with interior processes bearing numerous, long, robust setae. The aedeagus has its apex and/or vesica variably ornamented.

Watson (1968) included sixteen species in the genus, and Inoue (1992) described two more. It is most diverse in the tropics and subtropics of mainland Asia, but has several species in Sundaland and one in the Philippines. There are two in Borneo.

Sugi (1987) illustrated larvae of three Japanese species, and one from Taiwan was illustrated by Wang (1995). They are rugose, with a fine, somewhat reticulate, rippled pattern on pale brown. The build is robust, tapering from the head to the tail where the anal process is well-developed, narrow.

The host-plants (also Teramoto, 1993, 1996) were Betula (Betulaceae), Castanea, Fagus, Quercus (Fagaceae) and Corylus (Corylaceae). Sevastopulo (1947) recorded N. argenticeps Warren from Rubus (Rosaceae) in India.

<<Back >>Forward <<Return to Contents page

Copyright ©cSouthdene Sdn. Bhd. All rights reserved.