MORPHOLOGY
External characteristics
Male
Forewing length (mm): 56-58. Wingspan (mm): 94-96.
Forewings: Forewing upperside and underside black, gray on both sides of the veins, filling almost half of the wing. Hindwings Hindwing crenulate; upperside and underside black, white area in outer third, black area along margin may be divided into large rounded spots, small black spots in spaces 2-4; large anal fold white on upperside with pinkish outer border.
Female
Forewing length (mm): 67-68. Wingspan (mm):101-104.
Similar to male, but lacking the widened anal fold of the hindwing.
Subspecies and variation
Too few specimens are known to give an impression of the variation.
Similar species
Rather similar to the larger Atrophaneura priapus, but can be distinguished by a red band on both sides of the thorax and abdomen.
source: Jan Moonen, peronal communication 2020