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Thumatha
orientalis sp. n.
Thumatha orientalis 
(x 1.67)
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5-6mm. The facies is typical
of the genus and in particular of the Australian species fuscescens. The
general coloration is dark reddish brown. The genitalia have a less strongly
curved margin to the sacculus than fuscescens, the process of which is
shorter and more basal in position. The saccus tapers more. In the aedeagus
vesica there is a mass of small spines rather than the groupings of three to
four and two large ones in fuscescens. A species from Java (slide 5125)
has similar cornuti to fuscescens, whereas a specimen from Madagascar
(slide 5122) has just two separate, large cornuti. All these specimens were in
the BMNH series of fuscescens, which thus appears to be a species
complex.
Holotype S.E.
BORNEO, (Doherty), May [18]91, BM arctiid slide 5121.
Paratypes:2
as holotype, abdomens missing.
Geographical range. Borneo,
Sri Lanka (slide 5126).
Habitat preference. The
three Bornean specimens were probably from the lowlands.
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