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Pangrapta
parsimonalis Walker
Egnasia?
parsimonalis
Walker, [1859]1858, List
Specimens lepid. Insects Colln Br. Mus., 16: 224.
Zethes
apicinota Hampson, 1896, Fauna Br. India, Moths,
4: 536.
Diagnosis.
A little bit smaller than aviusalis, parsimonalis has
a more angular margin and a more sharply angled postmedial to the forewing, the
latter partially forming one side of a blackish brown triangle at the costa
distal to it. The posterior apex of this triangle is rounded and has a small
fleck of the same colour detached from it dorsad. The hindwing postmedial has a
‘mountain range’ distal to it as in aviusalis.
Taxonomic
note. Placement of this species in Pangrapta is
questionable. The male genitalia have narrow valves without processes, but the
uncus is not sinuous and the globular aedeagus vesica has a mass of needle-like
spines. The female has the eighth segment only moderately setose over the
posterior half. The ductus bursae is very long, relatively broad, expanded
slightly in the centre. The corpus bursae is elongate-ovate, fluted, with a
massive oval signum at two-thirds. This signum is increasingly coarsely spined
towards its lateral margins. There is a spherical appendix bursae on a slender
ductus from the base of the corpus bursae.
Geographical
range. N.E. Himalaya to Sundaland.
Habitat
preference. This is an infrequent species in forests from the lowlands to
1000m.
Biology.
The species has been reared from Breonia (Rubiaceae) in the Andamans (unpublished IIE records;
Robinson et al. 2001).
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