Green-veined white

Pieris napi dubiosa

A small white butterfly with a wingspan of 32-52 mm, females usually smaller, resembles the commoner small white but with characteristic greenish veins on the undersides of the hindwings. The green-veined lives in a variety of habitats, including coastal farmland, gardens, river valleys, floodplains, damp meadows, fields, woodland, grassland, and mountain springs. Host plants include members of the mustard family, such as garlic mustard (Alliaria petiolata), wild cabbage (Brassica oleracea), wild radish (Raphanus raphanistrum), towercress (Arabis turrita), wallflower (Cheiranthus cheiri), wild-rocket (Diplotaxis tenuifolia), and watercress (Nasturtium officinale). It flies March through October, in several broods.

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