Common Grass Yellow

Description:

The Common Grass Yellow exhibits seasonal polyphenism. The lepidopteran has a darker summer morph, triggered by a long day exceeding 13 hours in duration, while the shorter diurnal period of 12 hours or less induces a fairer morph in the post-monsoon period. _http://en.wikipedia.org/wiki/Eurema_hecabe)

Habitat:

Found in Asia and Africa