Published online by Cambridge University Press: 10 July 2009
Male and female. Head mainly clothed with black flat scales, with a narrow white border to the eyes broadening laterally, sometimes a central white patch; some upright forked black scales behind. Proboscis black, as long as the front femora in the female, a little shorter in the male. Palpi black; exceeding the proboscis by the length of the apical segment in the male, not quite a quarter as long as the proboscis in the female. Antennae dark brown, pale-banded in the male; the border of the cup of the torus thickly clothed with small flat white scales, especially on the inner side.