Cyana infantula Hampson
Chionaema infantula Hampson, 1900, Cat.
Lepid. Phalaenae Br. Mus., 2: 319,326.
Diagnosis.
The insect
is small, satiny white except for black discal spots, two to three in the male
and two longitudinal ones in the female. The male costa is yellowish below, with
a smudge of pinkish scales extending over the discal zone where, in the female,
the two spots are expressed.
Taxonomic
note. The
male genitalia are indistinguishable from those of flavalba
Rothschild from Peninsular Malaysia and Singapore, which differs externally
only in having straight yellow ante- and postmedial fasciae and a yellow distal
margin. C. harterti Elwes (Hong Kong,
with specimens from Taiwan and Okinawa) is also very similar externally, but was
not dissected. A pure white male from Semongok (see below), smaller and lacking
black dots on the forewing, may only be an aberration; the genitalia (slide 5459) have somewhat reduced spining in the aedeagus vesica but are
otherwise as in infantula.
Geographical
range. Borneo.
Habitat
preference. Recent
material seen consists of three specimens from lowland secondary forest at
Semongok near Kuching, two in a similar habitat at Lamunin in Brunei and one
taken at 1500m in montane scrub on the limestone G. Api. Older material suggests
this is a lowland species that can persist in disturbed areas.
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