Butterflies of St. Columba's - Green Veined White

Green-Veined White - Pieris napi This common species is on the wing from May to September and is easily identified by the greenish black or grey lines along the veins of the underside of the rear wings which are otherwise yellow. The female has two black spots on the upper side of the fore wing while the male only has one. They produce 2 to 3 broods each year. The caterpillars are green with a pale yellow stripe along the back and are voracious feeders on members of the cabbage family.


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