Diagnosis. The forewings are black and grey with transverse antemedial and postmedial fasciae, the former slightly concave basad, the latter triarcuate. The medial zone is black except for a broad grey strip along the costa that extends into the apical patch. The apical patch has a strongly curved posterior border that is highlighted by blackish shading immediately posterior again. The valve of the male genitalia has an angular projection in the centre of its ventral margin, which distinguishes it from forms of Dichromia indicatalis Walker (p. 188) where the facies is similar.
Taxonomic note. Holloway (1983) discussed a number of species endemic to Pacific islands related to gonospilalis that share the feature of the male genitalia mentioned above.
Geographical range. Indo-Australian tropics north to Japan and east to the Marshall Is., Samoa, Rarotonga and the Kermadecs (Holloway, 1983).
Habitat preference. Three specimens have been taken in recent surveys: at 170m in the understorey of lowland dipterocarp forest near the Danum Valley Field Centre in Sabah; at 1000m in lower montane forest on G. Mulu; at 1670m in montane forest on Bukit Pagon in Brunei.
