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Stictoptera grisea Moore  
Stictoptera grisea Moore, 1867, Proc. Zool. Soc. Lond. 1867: 67.
Stictoptera variegata Hampson, 1912, Cat. Lepid. Phal Br. Mus. 11: 163, syn. n.
Stictoptera grisea Moore; Holloway, 1976: 18.

Stictoptera grisea (1)

Stictoptera grisea (2)

Stictoptera grisea (3)

This and the next species have the fine medial line of the forewing more or less straight, and there is usually a more definite black streak striking the margin just anterior to the tornus. S. semialba has the postmedial more heavily black-spotted and the marginal zone of the forewing is distinctly paler than the rest in the arcuate form; (no. 1,2,3 above), (Stictoptera semialba Walker (no.2)  and (no. 3 above) semialba has a unique form with a bone-coloured forewing ground with or without fine black longitudinal streaks along the medial vein in the cell and the cubital vein . (Stictoptera semialba Walker (no. 1) S. grisea has a unique form with a basal buff area to the forewing (no. 2), further buff along the tornus and the rest of the wings generally more mottled (the synonym variegata Hampson was based on such a specimen). Both species have a form with the basal half of the forewing and the marginal zone pale bone grey or whitish, and the zone between the medial and the postmedial dark brown; in this form there is a subbasal black triangle on the costa in both species but only in grisea does this extend in a narrow, often slightly broken band to the dorsum; in semialba there is a basal dark patch subdorsally. (Stictoptera semialba Walker (no. 3), and (no. 1 above). The male genitalia of the two species are very similar; the cluster of cornuti in the vesica of semialba is slightly larger, the individual spines darker, than in grisea, though this character is only diagnostic for Sundanian material (Holloway 1976).

Geographical range. N.E. Himalaya, Sundaland, Philippines, Sulawesi, S. Moluccas.

Habitat preference. The species is found mainly in upper montane forest. On G. Kinabalu it was frequent from 1000-2600m, commoner from 1500m upwards. During the Mulu survey it was found infrequently in upper montane forest on G. Mulu and singly in the lower montane forest, alluvial forest and low altitude forest on limestone. In Brunei it has been taken in upper montane forest on Bukit Pagon and Bukit Retak.

Biology. The species has been reared from Garcinia in India (Mathur et al. 1954 - 1960).

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