Achaea
simplex Walker
Achaea
simplex Walker,
1865, List
Specimens lepid. Insects Colln Br. Mus., 33: 960.
Diagnosis.
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.
Taxonomic
note. Holloway (1982: 234) suggested that simplex
might
belong with the mercatoria Fabricius species group of the serva
complex
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.
Geographical
range. Waigeo, Mysol, N. Moluccas, Sulawesi, ?Borneo.
Habitat
preference. The single Bornean specimen examined is from Kota Batu in the
lowlands of Brunei.
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