Naxa kerangatis sp. n.
Males and, to a lesser extent, females of kerangatis have deeper
forewings than in guttulata, with the grey spots darker and generally
less lanceolate. The species are most reliably distinguished by characters of
the male genitalia: the costa of the valve in guttulata is more strongly
angled, sclerotised, rugose centrally; the juxta is shorter, broader, less
deeply bifurcate apically, with the right-hand prong longer rather than the left
as in kerangatis and the type species, textilis.
Holotype . SARAWAK: Gunung Mulu Nat. Park, R.G.S
Exped. 1977-8 (J.D.
Holloway et al.) Site 20, Mar.-Apr., W. Melinau Gorge, 150m. 422577, FEG3
kerangas, MV-understorey, BM geometrid slide 10616.
(slide 17077), 1 as
holotype; 6 (slide 11676, venation),
3 general data
as holotype but site 22 (kerangas); 2 Site 21 (bank at edge of
(slide 17067), 3
inland of Pontianak, 1910 (Dr Martin).
Geographical range. Borneo.
Habitat preference. The species favours
lowland forest on acid soils, e.g. kerangas.
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