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Chasmina coremata sp. n. 

Chasmina coremata

18-21mm. The wings have an even (or stronger at the tornus) row of minute dots on the vein ends at the margin, though these are absent in some specimens and less evident on the hindwings. In the male abdomen the eighth sternite is narrow with lateral coremata and the tergite is broad, short, with a transverse central lacuna. The valves are narrow, tapering over the apical half as in tibialis Fabricius, but are not much longer than the tegumen rather than extending well beyond it; tibialis lacks coremata. The juxta has lateral horn-like processes as in tibialis. Coremata are otherwise only seen in C. basiflava Holloway and in a taxon from Java (slide 14220) where the uncus is more sinuous, the valves much broader, not tapering, and the juxta considerably smaller.

Holotype .
NORTH BORNEO: Sabah, Sandakan distr. Rumidi Estate, B. Labuk, 2600ft, wet season, 16.ix-2.x.1973 (C.J.H Pruett), BM noctuid slide 14217.

Paratypes: 1 as holotype; 1, 2 NORTH BORNEO: Sabah, Tawau distr. 500-700ft, primary rainforest 17.x-5.xi. 1973 (C.J.H. Pruett); 1 BRUNEI: 30-60m, Labi, lowland forest and secondary veg. 28.7.79 (Lt. Col. M.G. Allen).

Geographical range
. Borneo.

Habitat preference
. All specimens are from the lowlands.

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