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Xenotrachea
leucopera Hampson comb. n.
Trachea leucopera
Hampson,1906, Cat. Lepid. Phalaenae Br. Mus., 7: 138.
Diagnosis.
In size this
species resembles albidisca, but lacks the broad white zone at the
reniform and has a distinct row of elongate black triangles submarginally (one
triangle subapically is suffused white; it is in a similar position to a paler
mark in this zone in albidisca).
Taxonomic note. Apart from a broader aedeagus vesica, the male genitalia of leucopera
are indistinguishable from those of albidisca. The facies is to some
extent reminiscent of that of Australasian taxa in the genus Pachythrix Turner,
but in this the valve is longer without a weak ventral margin, with a narrower
corona and a more slender incurved harpe. The aedeagus vesica lacks cornuti. The
peniculus is distinctly angled. A sister-relationship between Xenotrachea and
Pachythrix cannot be ruled out.
Geographical
range. Borneo,
Peninsular Malaysia.
Habitat
preference. The
species is rare, most often encountered in lowland rain forest, e.g. at Labi and
Ulu Temburong in Brunei. One specimen was taken in lower montane forest (1000m)
on G. Mulu.
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