clavifera Prout stat. n.
venata clavifera Prout, 1928, Sarawak Mus. J., 3: 467.
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
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.
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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