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Nygmia barbara Swinhoe comb. n. 
Euproctis barbara
Swinhoe, 1903, Ann. Mag. nat. Hist. (7), 12: 197.

Nygmia barbara

Nygmia barbara

This species is a member of the N. tamsi Collenette comb. n. (Peninsular Malaysia, Sumatra) group, all having rather similar facies of darker speckled fawn forewings with a strong discal spot and postmedial, the latter broken by pale along the veins. The species are therefore best distinguished from the male genitalia. Schintlmeister (1994) recognised that a complex was involved: his fig 136-3 shows the genitalia of typical tamsi with rather more elongate dorsal arms to the valves. In barbara, both arms of the valves are shorter, the dorsal deep and rather rounded. The saccus is narrower, and the aedeagus vesica has a continuous longitudinal band of small spines rather than distinct basal and distal patches. The type material of barbara has the ground of the forewings a slightly yellower tint, less heavily irrorated with dark scales. Possible females (slides 2718, 2740) resemble those of exitela in appearance, lacking the fasciation of the males, and in genitalic structure, but the ductus does not broaden out to the ostium, is much less fluted and has the double pocket sclerite narrower longitudinally and extending more transversely. The bursa has a signum that is more typical of the genus, a longitudinal flange.

Taxonomic note. The male genitalia indicate affinity with N. protea Collenette comb. n. (Peninsular Malaysia) and N. zeboe Moore comb. n. (Java). The genitalia in fig 136-2 of Schintlmeister (1994) are referable to one of these species.

Geographical range. Borneo.

Habitat preference. The species is slightly more frequent in lowland forest, but has been taken in lower montane forest on G. Api (900m) and G. Mulu (1000m), and in upper montane forest on Bukit Retak (1618m).

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