Lophoptera pallibasis Holloway
forewings are rather uniform, warm, greyish brown with a series of faint fasciae
over the postmedial half parallel to the margin; the reniform is edged with dark
brown and the orbicular is incorporated into a curved (concave basad) multiple
fascia with paler brown elements and enclosing a slightly paler basal area.
Taxonomic notes. The
species resembles the Indian L. apirtha Swinhoe in general appearance,
though apirtha lacks the paler basal zone to the forewing. However, the
male genitalia are very different, apirtha having a relatively short
triangular uncus and the ventral arm of the valve shorter than the costal
process, fused to it over half its length then diverging.
Malaysia, Sumatra, Borneo.
Habitat preference. On G. Kinabalu the species was taken from 1200m to
1930m. It was the most abundant stictopterine taken during the Mulu survey,
especially in the lowland and lower montane forest samples on the G. Api
transect. It was common in lower and upper montane forest on G. Mulu and in
upper montane forest on G. Api, and also at Long Pala where a sample was made
from a limestone outcrop overlooking the canopy of alluvial forest in the
lowlands. It was infrequent in other lowland forest types. In Brunei it has been
taken frequently in upper montane forest on Bukit Retak, once on Bukit Pagon,
and frequently in hill dipterocarp forest at Ulu Temburong.
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