West Virginia White (Pieris virginiensis), a State Special Concern butterfly, is very local in rich, deciduous northern forests, primarily of beech and sugar maple. Its host plant is toothwort, Cardamine diphylla and perhaps C. maxima. This is a univoltine species and adults have been observed from mid-May into the first week of June. Eggs are laid singly on the undersides of leaves and hatch in May and complete development by the beginning of June when they pupate and enter diapause until the following spring.
