Butterflies and Moths of North America

collecting and sharing data about Lepidoptera

Griffin's sheepmoth
Hemileuca griffini Tuskes, 1978

Family: Saturniidae
Subfamily: Hemileucinae
Identification: Male abdomen is black with a red tip, female abdomen is banded with red and black. Upperside of wings is white with narrow black markings.
Wing Span: 1 3/4 - 3 inches (4.4 - 7.6 cm).
Life History: Adults emerge in early morning and mate in late morning. Females lay eggs in early afternoon in bands around twigs of the host plant. Eggs overwinter and hatch in April; the young caterpillars feed together and when older they feed alone. Fully-grown caterpillars may wander for 2-4 days before making loose cocoons under plant debris or in sandy soil.
Flight: One flight from August-October.
Caterpillar Hosts: Blackbrush (Coleogyne ramosissima).
Adult Food: Adults do not feed.
Habitat: High desert scrub.
Range: Southern Utah south to central Arizona, west to southern Nevada.
Conservation: Populations should be inventoried and monitored to determine conservation status and impact of grazing on habitat.
Management Needs: None reported.
Comments: NULL