Specimens lepid. Insects Colln Br. Mus., 33: 960.
The forewings are a uniform medium brownish grey with a darker discal spot and
fine, faint and sinuous postmedial fasciae. The hindwing has the distal half
dark grey-brown with the marginal white patches typical of the genus, but the
basal half is white.
note. Holloway (1982: 234) suggested that simplex
belong with the mercatoria Fabricius species group of the serva
but could not confirm this without a male specimen. The only Bornean specimen is
male and matches more easterly material seen, all female, in facies. The male
genitalia are characteristic of the genus, though the main portion of the uncus
is unusually trifid.
range. Waigeo, Mysol, N. Moluccas, Sulawesi, ?Borneo.
preference. The single Bornean specimen examined is from Kota Batu in the
lowlands of Brunei.
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