Delias sanaca Moore 1857 
Delias sanaca bhutya male
Eaglenest WLS, West Kameng District, Arunachal Pradesh, India, 22 VI 2015
Picture : Krushnamegh Kunte
Subspecies and range of Delias sanaca :
.sanaca Moore 1857 - W Himalayas, N India
. f. flavalba Marshall 1883 - W Himalayas
. f. confusa Talbot 1928 – W Himalayas
. oreas Talbot 1928 – Sikkim, S Tibet
. bhutya Talbot 1937 - Bhutan, SE Tibet
. perspicua Fruhstorfer 1911 - N. Myanmar, Yunnan, N. Thailand, Laos
. bidoupa Monastyrskii & Vu 2021 - Bi Doup National Park, central Vietnam
. kohimahensis Yoshino 2021 - Mt Japfu, Nagaland, NE India
Notes on Delias sanaca :
This is yet another species which is very difficult to distinguish between this and other members of the group. The subspecies, perspicua, has often been mis-identified with that of Delias berinda. It can be identified by examination of the uncus. There is no definite pattern characteristic, which makes the identification of this and the related species more than a little difficult unless you are prepared to examine the uncus and other internal organs. From my observation in Laos, sanaca flies in higher altitude than berinda.
The wonderful white form flavalba is rare in collection.
The ssp bidoupa from Vietnam has recently been described from two female specimens only (Bi Doup Mount) (read the description here).
Group belladonna species :