Birthama
rubicunda Walker
Nyssia rubicunda Walker, 1862, J. Linn. Soc. Lond. (Zool.)
6:144.
Birthama obliqua Walker, 1862, J. Linn. Soc. Lond. (Zool.)
6: 175, syn. n.
Miresa acallis Swinhoe, 1906, Ann. Mag. nat. Hist. (7)
17: 548, syn. n.
Nirma psychidalis van Eecke, 1929, Zool. Meded. Leiden 12:
117 syn. n.
Birthama rubicunda Walker;
Hering, 1931: 688.
Miresa acallis Swinhoe; Barlow, 1982: 39.
Diagnosis. The male has brownish red forewings and slightly paler hindwings. The
forewings have the veins picked out darker; the oblique medial bar is broad,
diffuse, indistinct. In the female the medial bar is prominent though still
diffuse, and the submarginal is evident in some specimens; the veins are not
darkened as in the male. The male genitalia are distinguished by two hook-like
spines at the apex of the aedeagus.
Taxonomic notes. The sexual dimorphism is partly responsible
for the extensive synonymy of the species.
Geographical range. Peninsular
Malaysia, Sumatra, Borneo.
Habitat preference. During
the Mulu survey three males were taken at 1000m in lower montane forest on G.
Mulu. Otherwise records have been from the lowlands; hill dipterocarp forest in
Ulu Temburong and coastal forest at Seria, Brunei.
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