Phazaca unicaudoides sp. n.
(tentative association) 9mm. This species is smaller and
paler than the previous few, but of the same facies type, resembling somewhat P.
unicauda Hampson comb. n. from the Indian Subregion. The male has
pale brown forewings and pale red hindwings, the former marked as in leucocera
and allies, the latter as in acutilinea. The putative female is
generally greyer throughout, with forewing markings as in the male and the
two-tailed (cf. rounded) hindwing with an angled postmedial typical of the
sexually dimorphic species. The male genitalia have several features,
distinguishing the species from unicauda and other taxa: a bulge with a
central 'nipple' to the valve costa; a central, rather triangular concentration
of setae to the valve. The female has central, rather triangular concentration
of setae to the valve. The female has narrow, rather acute ovipositor lobes, a
conical ostium with the ductus rather swollen distal to it, and the portion
beyond that scobinate, and a small bursa lacking a signum and scobination.
Holotype BRUNEI: 15m, Telisai, sandy heath forest and Gymnostoma, 3.2.1979
(Lt. Col. M.G. Allen) BM uraniid slide 299.
as holotype; l (slide 447) SARAWAK: Gunung Mulu Nat. Park,
R.G.S. Exped. 1977-8 (J.D. Holloway et al.) Site 8, February, Camp 1,
Mulu, 150m. 385470, mixed dipt. for.
Geographical range. Borneo.
Habitat preference. The males are mostly from dry heath forest, one being
from lowland dipterocarp forest. The three females associated here tentatively
are from the type locality, from lowland swamp forest at Badas in Brunei and
from mangrove in the Bay of Brunei.
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