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Xenochroa
fuscomarginata
Hampson stat. rev. & comb. n
Carea fuscomarginata Hampson, 1894, Fauna Br. India, Moths, 2: 424.
Carea nexilla
Hampson, 1912, Cat. Lepid. Phalaenae Br. Mus., 11: 565,
syn. n.
Xenochroa
bironga
Kobes, 1997: 142, syn. n.
Diagnosis. This species has duller, rather more speckly, vinous red-brown
forewings than fuscosa but has similar fasciation and brown hindwings.
The male genitalia have the aedeagus vesica more elongate, with distinct basal
and distal lobes separated by a constriction. The cluster of cornuti is central
to one side of the distal lobe.
Taxonomic note.
The holotype listed by Kobes for bironga
matches the two other taxa closely in facies and genitalia (slide 17820). This
facies type is, however, best represented by the specimens attributed to
dohora in his Plate V. The specimens indicated to be bironga in that
plate match the holotype of dohora in facies, and the text confirms that
dohora has straighter fasciation than bironga.
X. minima
Warren comb. n. (Penang) has forewing facies like a more vinous version
of obvia, but the bilobed aedeagus vesica indicates a relationship to
fuscomarginata. The cornuti in the cluster are more robust and strongly
curved in minima.
Geographical range. Burma (Mergui), Peninsular Malaysia, Singapore, Sumatra,
Borneo.
Habitat preference. Most older material seen is from the lowlands, e.g.
Sandakan in Sabah and Bidi and Paku in Sarawak. Only one specimen was taken in
recent surveys, from dipterocarp forest at 250m on G. Api.
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