Sesquiluna albilunata is a moth in the family Endromidae first described by George Hampson in 1910.

The forewings are dark red brown mixed with grey and with a deeper red-brown antemedial band defined by greyish on the inner side and with slightly waved edges, oblique from the costa to the submedian fold.

There are also small obliquely placed subapical white lunules below veins seven and six with a reddish tinge beyond them.

The larvae feed gregariously on Cudrania javanicus.

There are broad yellow patches between the prolegs and the head is black.