Necla canioralis Walker, 1863, List Specimens lepid. Insects Colln Br.
Mus., 27: 100.
Diagnosis and taxonomic note. The forewing of this and the next species is
crossed by a series of fine, entire, but slightly irregular fasciae running
transversely. At least the base, and often most of the pale areas of the wing
are invested with opalescent scales. The species belong to a complex for which
the name Pisara may be applicable at a subgeneric level; the complex is
perhaps more diverse in the Australasian tropics. The male genitalia, including
the aedeagus, tend to be rather broad, and the uncus is present but vestigial.
The harpe is robust and is usually diagnostic. In canioralis the forewing
submarginal is rather diffuse and zig-zag. The postmedial is stepped around the
discal spot, displaced basad posterior to it, and the antemedial is transverse,
sometimes delineated darker and concave basad, with the medial zone between a
slightly darker grey. Opalescence is only weakly evident. The male genitalia (Sulawesi
specimen; no Bornean males were located) have a rather rectangular harpe with
its apical side slightly oblique. See also the next species. The female
genitalia have the ductus bursae short relative to that of the next species,
with the basal zone weakly sclerotised, more so on one side than the other. The
two invaginate, spine-like signa are less strongly sclerotised, their bases less
Geographical range. Borneo, Sulawesi.
Habitat preference. The holotype female was taken by A.R Wallace in Sarawak,
most probably in the lowlands. Three further females (in ZM, Univ. Amsterdam)
were taken at 300m on Tawau Hill and at 950m and 1000m at Sayap, north of G. Kinabalu,
all in Sabah.
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