Arhopala alaconia is a species of butterfly belonging to the lycaenid family described by William Chapman Hewitson in 1869. It is found in Southeast Asia (Borneo, Burma, Thailand, Peninsular Malaya and Palawan).[1]
At once recognisable by the very broad (as much as 5 mm) black distal band (also in the male). Beneath the postmedian band of the hindwing is irregular and interrupted.A. oberthuri Stgr. [now subspecies] also has a very broad marginal band above; but the under surface is muchmore irregularly marked. Besides separated from alaconia by a distinct anal lobe of the hindwing; it has, however, no tails.[2]