Butterflies and Moths of North America

collecting and sharing data about Lepidoptera

Gray Marble
Anthocharis lanceolata Lucas, 1852

Family: Pieridae
Subfamily: Pierinae
Identification: Forewing slightly pointed, outer margin concave. Top and bottom of forewing white with black cell spot and black margin at tip. Underside of hindwing with dark veins, dense gray marbling, and a white blotch underneath the costal margin.
Wing Span: 1 1/2 - 2 inches (3.8 - 5 cm).
Life History: Males patrol in valleys or draws for females. Females lay eggs singly on host plant flowers and leaves; caterpillars prefer to feed on flowers and fruits. Chrysalids hibernate.
Flight: One flight from March-June.
Caterpillar Hosts: Rock cress (Arabis species) and other mustard family (Brassicaceae) plants.
Adult Food: Flower nectar including rock cress.
Habitat: Rocky canyons, draws, forest openings.
Range: Southwest Oregon south to northern Baja California, western edge of Nevada.
Conservation: Not usually required.
NCGR: G3 - Very rare or local throughout its range or found locally in a restricted range (21 to 100 occurrences). (Threatened throughout its range).
Management Needs: Not reported.
Comments: NULL
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