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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.
Diagnosis. 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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