About Ancema blanka (de Nicéville, 1895)
Lionel de Nicéville originally described this species in 1894, focusing on the female. On the upperside of the forewing, the costa at the base is very narrowly black, the apex is very widely black, and the outer margin is decreasingly black; the remaining area of the wing is a rather light, clear blue. On the upperside of the hindwing, the costa is broadly fuscous, the apex is widely black, and the outer margin is narrowly black; the abdominal margin, extending as far as the submedian nervure, is whitish, and the rest of the wing is blue. The anal lobe is small and black, capped with a few blue scales, and a white fascia lies against the anterior side of the lobe. The tails are rather short and black, tipped with white: the longer tail emerges from the end of the first median nervule, and the shorter tail from the submedian nervure. Cilia are entirely black. On the underside of the forewing, the wing is immaculate drab, with the inner margin extending broadly onto the disc as dull ochreous. On the underside of the hindwing, the wing is drab. It has an irregular outer discal dark line, outwardly outlined in white, running from the abdominal margin to the third median nervule. There is a small oval black spot on the margin in the first median inter-space, and a slightly larger black spot on the anal lobe, with fine turquoise-blue scales on both the anterior and posterior sides of this spot. The area between and above these two spots is ochreous. An anteciliary black thread, inwardly outlined by a narrow white thread, runs from the anal lobe to the third median nervule. Cilia of the forewing and the anterior half of the hindwing are drab, while the posterior half is whitish. The body is covered above with long hairs matching the blue shade of the wings. The underside of the thorax is drab, and the underside of the abdomen is dull ochreous.
