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Norraca sabulosa Kiriakoff
Bireta (Norraca) sabulosa
Kiriakoff, 1962: 199.
Norraca sabulosa Kiriakoff; Kiriakoff 1968: 81.

Norraca sabulosa

Both this and the next species lack the postmedial row of black dots at least over the anterior half of the wing, compared with the Saliocleta and Ceira species. This species is more extensively suffused with greyish (cf. fawnish) brown over the forewing than the next, and has more definite subbasal dark spots. Both this and the next species share a distinctive asymmetric pair of acute processes on the aedeagus apically and subapically; in sabulosa the apical process is longer, flexuose, and the subapical process is curved. The uncus tends to be narrower.

Taxonomic notes. This species is probably the high altitude sister species of the next. The genus Norraca requires careful revision based on all type material and long series, with male genitalia preparations made as uniformly as possible because differences in uncus shape and aedeagus ornamentation are subtle and subject to deformation.

Geographical range. Sumatra, Borneo.

Habitat preference. The species is probably montane. A single male has been taken in Borneo, in upper montane forest on G. Mulu (1790 m).

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