The Dull Babul Blue or Indian Babul Blue (Azanus uranus) is a small butterfly found in India that belongs to the Lycaenids or Blues family.

Description

Closely resembles A. ubaldus, Cramer. The male on the upperside has the ground-colour much paler and the terminal edging on both fore and hind wings much narrower, reduced, in fact, to a conspicuous dark brown anticiliary line, while the two dark spots at the tornal area of the hind wing are more or less obsolescent. In the female on the upperside the ground-colour is also much paler than in the female of ubaldus, but the suffusion of purplish blue at the base of the wings in a solitary female specimen is spread slightly further outwards than it is in the female of ubaldus.

Underside : ground-colour greyish white ; character and disposition of the markings much as in ubaldus, but faint and not clearly defined, often many of them scarcely traceable ; the transverse subbasal row of black spots on the hind wing either completely absent or barely visible. The black subcostal spot in interspace 7, though smaller than in ubaldus, seems to be always present, while the tornal black spots seem to be particularly large and prominent in both sexes.


source - Wikipedia