Miscellaneous Genera I
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Varicosia clavifera Prout stat. n. 
Varicosia venata clavifera Prout, 1928, Sarawak Mus. J., 3: 467.

Varicosia clavifera

Diagnosis. See the generic description and the previous species, which is smaller but otherwise very similar. There is some sexual dimorphism, with males having the central wedge of the forewing much darker, particularly immediately posterior to the lens-shaped zone of longitudinal streaking on the veins adjacent to the costa.

Taxonomic note. The male genitalia of clavifera differ markedly from those of Sri Lankan venata (see above). The process from the centre of the valve costa is much broader, falcate, rather than digitate, curving round to meet the much narrower and also somewhat falcate valve apex. The aedeagus vesica is larger, with numerous small lobes and diverticula.

Geographical range. Borneo.

Habitat preference. The species is rare and montane in Borneo. The holotype of clavifera is from G. Murud in Sarawak, without altitude data. Recent surveys have yielded two specimens from 1200m and one from 1500m in low, open, scrubby vegetation on the limestone G. Api in Sarawak, and one from 1618m on Bukit Retak in Brunei. A female has also been taken at about 1500m on the Mesilau Plateau of G. Kinabalu.

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