Delias hypomelas form argentata
Delias is a species of Pieridae butterfly in the subfamily Pierinae. There are about 225 described species in the family Delias, often with brightly coloured patterned wings. Males can sometimes be found imbibing moisture at the edges of streams. Both sexes very mobile and are more often seen in flight then settled. Wingspan is 65 - 75mm (2.5 - 3 inches)
Found along a mountain stream at 7175 Ft, 2174 meters, surrounded by primary montane rainforest.