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Bosara
refusaria Walker comb. n.
Acidalia refusaria Walker,
1861, List Specimens lepid. Insects Colln Br. Mus., 35: 1693.
Diagnosis. The species resembles a very small Glaucoclystis
Gen. n. , but with the postmedials only slightly angled, more central, represented
as a boundary between paler grey diffusing away distad and darker grey diffusing
basad, the latter strongest at the angle on the forewing.
Taxonomic notes. The male abdomen has well-developed octavals, with basal and subapical
cross-bars between them. They are exteriorly swollen between these, and apically
rather spatulate. The genitalia resemble those of Bosara, but the tegumen
is not expanded, the uncus moderate. The valves have only a hint of a process at
the distal end of the saccular margin. The aedeagus is relatively long with,
when uneverted, a short distal cornutus and a long basal one in the vesica. The
female has a short ductus, flanked on the lamella antevaginalis by a pair of
semicircular lobes (presumably for engagement with the octavals). The bursa has
a long, fluted, sclerotised neck that contains several rows of robust spines,
and a small, globular, immaculate bulb distally.
B. minima Warren comb. n. (Queensland, New Guinea, Bismarcks, Solomons) has
genitalic features closer to those of typical Bosara though in facies it
is almost identical to refusaria. The octavals not modified to the extent
of those of refusaria, and the aedeagus cornuti are smaller. The female
has a long, rather trumpet-shaped ductus and bursa, the former sclerotised
without fluting or spines, the latter globular with general spining. In Sri
Lanka there flies a third, undescribed member of the group (slide 19089). The
taxon maculilinea Warren (Key Is.) is placed as a synonym of refusaria
within Gymnoscelis in the BMNH arrangement. It is not conspecific and
is probably best retained within Gymnoscelis until more material is
available: it is represented by only the holotype female.
Geographical range. Borneo, Bali, Philippines.
Habitat preference. Four specimens have been taken in recent surveys,
three in lowland dipterocarp forest (at 300m in Ulu Temburong, Brunei, and at
945m on G. Monkobo, Sabah) and one in secondary forest on the coast at Seria,
Brunei.
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