Expanse, ♂, 2.40–2.50; ♀, 2.85–2.90. Head black. Antennæ, ♂, stem brown, pectinations black; ♀, wholly brown. Prothorax white. Patagia white in front, overlaying longer hairs of white and black. Thorax black, with tufts of rust-red hairs behind the patagia. Abdoment black, with a few scattered white hairs toward anal end, and with white or sometimes yellow hairs in segmental spots on sides beneath; ♂ with large anal tuft of rust-red, ♀ without tuft, but tip is hoary with short hairs of sordid white.