Delias sinak van Mastrigt 1990 
Subspecies and range of Delias sinak :
No subspecies
. sinak - Sinak-Mulia, Papua
Notes on Delias sinak :
The recent upgrading of this species from a subspecies of Delias sagessa is a matter of some disagreement. The main reasoning seems to be the lack of the red spot at the bottom of the yellow underside hindwing patch. However, I have seen a specimen with very rudimentary red dusting in that area.
Group geraldina species :