Miscellaneous Genera VI
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Microxyla stipata Walker stat. rev., comb. n.
Nanaguna? stipata Walker, 1863, List Specimens lepid. Insects Colln Br. Mus., 27: 85.


Microxyla stipata
(in FRC, Sepilok)

Diagnosis. See Chorsia perversa above. The Bornean specimen of stipata is slightly larger and browner, but dissection is recommended to confirm identity.

Taxonomic notes. This species is closely allied to confusa Wileman, and both have been erroneously placed as synonyms of Chorsia perversa Walker as discussed on p. 412. Typical stipata (slide 18527) has a more rounded interior margin to the basal half of the valve sacculus rather than having a right-angle distally (Inoue et al., 1982: plate 374: 6). The curved, digitate process dorsal to this is longer in stipata. This feature is shared by the Bornean specimen; however, the valve is narrower, the apex extending further beyond the more distal triangular process on the interior saccular margin, and also the saccus is rounded rather than acute. This Bornean specimen may represent a third species, but the differences noted are slight enough to require further material from both localities to ensure these are consistent.

Geographical range. Sri Lanka, S. India; Borneo.

Habitat preference. The only specimen (in FRC, Sepilok) was taken in an oil palm plantation at Bukit Gemok near Tawau in the lowlands of Sabah by Dr. Chey Vun Khen.

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