Identification: Like a very large version of the Cabbage White.
Wing Span: 2 1/2 - 2 3/4 inches (6-7 cm).
Life History: Females lay masses of yellow eggs on undersides of host leaves. Caterpillar is gray-green green with black smudges ands short white hairs. Chrysalis is gray green with small yellow and black marks.
Flight: Two to three flights in Europe from April to October.