Mustard White (Pieris oleracea)
Spring Form - Griffith, ON 2018/05/16
Summer Form - Gatineau Park QC 2010/07/22
Longue-Pointe, QC 2015/06/25
Gatineau Park QC 2012/07/21
Member of Family: Pieridae
French common name: Piéride des crucifères
The spring generation of this species has darker scaling on the underside than the summer generation (compare upper left and upper right images). Also, in the far north, this species takes on a more heavily marked appearance as shown at lower left.