Leptidea morsei (Fenton's wood white) is a butterfly of the family Pieridae.

It is found from central Europe to Siberia, Ussuri, Korea, northern China and Japan.

Adults are on wing from April to May and again from June to July in two generations per year.

[3] Julius Rober in Seitz considered it to be "apparently an aberration of Leptidea amurensis in which the subapical spot of the forewing above is less developed.

Media related to Leptidea morsei at Wikimedia Commons