Aporia nabellica
Dusky Blackvein (Aporia nabellica) is a midsized to large butterfly of the Family Pieridae, that is, the Yellows and Whites, which is found in India and Pakistan in the W. Himalayas: Kashmir to Naini Tal from 2,600 to 4,000 m (8,500 to 13,000 ft). It has a wing expanse of 6 to 7 cm.
Description