27-30mm,
33m. In facies this species resembles closely
O. cordularia Swinhoe
(Himalaya), like O. rufilauta but with black rather than brown markings.
The markings are somewhat heavier than in cordularia. The latter has
distal saccular and subcostal spurs to the valve as in rufilauta but cordularioides
lacks these, having an irregularly spinose, shallow flange on the sacculus.
The uncus is more elongate, with disinctive lateral triangular flaps at the apex
in addition to the more basal horns.
Holotype . SARAWAK: Gunung Mulu Nat.
Park, R.G.S. Exped. 1977-8 (J.D. Holloway et al.) Site 5,January,
Camp 4, G. Mulu, 1780m, 451463 [upper montane forest]. BM geometrid slide 13142.
Paratypes: 1 SARAWAK: Gunung Mulu Nat. Park,
R.G.S. Exped.
1977-8 (J.D. Holloway et al.) Site 16, March, Long Pala (Base), 70m,
324450, alluvial/secondary forest, MV on batu; 1 E.
SABAH, Brumas, 500ft,
26.4.1973 (K.M. Guichard); 2 NORD BORNEO, Mont Kina
Balu, 5.8.1903 (JohnWaterstradt).
Geographical range. Borneo, Sumatra.
Habitat preference. Specimens have been taken both in the lowlands and in
the upper montane zone.
33m. In facies this species resembles closely
O. cordularia Swinhoe
(Himalaya), like O. rufilauta but with black rather than brown markings.
The markings are somewhat heavier than in cordularia. The latter has
distal saccular and subcostal spurs to the valve as in rufilauta but cordularioides
lacks these, having an irregularly spinose, shallow flange on the sacculus.
The uncus is more elongate, with disinctive lateral triangular flaps at the apex
in addition to the more basal horns.