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Teulisna nebulosa Walker comb. n.
Lithosia nebulosa Walker, 1862, J. Linn. Soc. (Zool), 6:106.
Ilema perdentata Druce, 1899, Ann. Mag. nat. Hist. (7), 4: 201.

Teulisna nebulosa (x 1.32)

Teulisna nebulosa (x 1.32)

There is strong sexual dimorphism, with males being dull pale orange and females a paler straw colour. Basally and distally the wing is streaked darker on the veins, and these streaked areas are separated by an irregularly zig-zag band in a central pale zone. These markings are very faint in the male but prominent and grey in the female.

Taxonomic note. This and the next two species are transferred to Teulisna from Eilema as they have the diagnostic saccus structure and that of the apex of the saccular process of the valve. All three have a broad, bilobed juxta. However, there are no scent scale modifications to the male forewing, nor such extreme distortion to the venation as seen in the typical group and the Bitecta group. Males of T. nebulosa have the cell longer than in the female, and narrowed over the basal half, such that the distal venation is compressed into a shorter space. The radial sector branching appears rather bunched, often almost trident-like rather than sequential.

Geographical range. Peninsular Malaysia, Borneo.

Habitat preference. The species was taken in numbers in lower montane forest at 1000m on G. Mulu. Two specimens were taken at 900m on G. Api. Records from Bukit Pagon (a singleton at 1670m) and G. Kinabalu (one from 1800m) are somewhat higher.

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