forceps Kobes comb. n.
forceps Kobes, 1985: 42.
the previous species. B. forceps is smaller than onelia and
the mainland Asian umbrosa Walker
but is difficult to distinguish from the latter except by the male genitalia,
where there are two processes resembling forceps on the right valve, rather than
the usual three. Males from Java (slide 10916) and Penang (slide 18360) have
genitalia more typical of umbrosa,
so that species may prove to occur more widely in Sundaland. There is some
variation also in the genitalia of umbrosa, with a male from the type area of China
having a prominent crest to the uncus.
range. Sumatra, Borneo.
preference. All material is from lowland localities, mostly those with
cultivation or disturbance. In recent surveys one was taken in the hot spring
area of Poring near G. Kinabalu and another on the coast of Brunei near Seria.
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