About Leptidea juvernica Williams, 1946
Leptidea juvernica, commonly known as the Cryptic wood white, is a butterfly species belonging to the family Pieridae. Its distribution extends from Ireland and France in the west, all the way to Kazakhstan in the east. Populations of this butterfly found in Ireland were previously identified as Leptidea reali, but they are now confirmed to be Leptidea juvernica.