Colias lada

Colias lada  is a butterfly in the family Pieridae. It is found in the East Palearctic (Tibet, China).

Description
Colias lada is deep yolk-colour, with rather narrow black distal margin, the middle spot of the forewing small; female with strongly darkened hindwing, the posterior portion of the distal margin being conspicuously yellow.

Taxonomy
Accepted as a species by Josef Grieshuber & Gerardo Lamas