View Image Gallery of Tribe Nygmiini n.

Nygmia postgrisea Rothschild comb. n.  
Euproctis postgrisea Rothschild, 1920, J. Fed. Malay St. Mus., 8:131.
Euproctis leucophleba Collenette, 1932, Novit. zool., 38: 67, syn. n.

Nygmia postgrisea

Both sexes have a diagnostic pale whitish patch posterior to the black discal dot of the forewing, the rest of the wing being yellow, heavily suffused with black scales. Some specimens have diffuse black spots at the M1 on margin just posterior to the apex (See Nygmia castor Collenette comb.n) but variation in Borneo is not as extreme as that illustrated for Sumatra by Schintlmeister (1994).

Taxonomic note. The uncus is atypical of Nygmia, being divided, and the valves are extreme in structure, divided into three slender, unequal processes as illustrated. The aedeagus vesica and apical spur is more typical, though scobination of the former is weak. The worn holotype (Sumatra) of postgrisea has genitalia as in leucophleba. The species illustrated as postgrisea by Schintlmeister is new and described on (See "Euproctis" schintlmagistri sp.n).

Geographical range. Sundaland.

Habitat preference. Most records are from lowland forest, but the species has also been recorded once from ridge forest at 900m on Bukit Monkobo, Sabah, and twice at 1618m on Bukit Retak, Brunei.

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