Butterflies and Moths of North America

collecting and sharing data about Lepidoptera

Walters' saturnia moth
Saturnia walterorum Hogue & Johnson, 1958

Family: Saturniidae
Subfamily: Saturniinae
Identification: Upperside is brownish orange to yellow-orange with an eyespot on each wing. Spot at the tip of the forewing is well-developed in both sexes. Black submarginal line on the hindwing is solid throughout its length. Female has distinct darker areas at the wing bases and a black submarginal line on the forewing.
Wing Span: 2 1/2 - 3 3/4 inches (6.4 - 9.4 cm).
Life History: Adults emerge in early morning and fly during the day. Females lay eggs singly or in small bunches on the host plants. Eggs hatch in 11-30 days and the young caterpillars feed singly or in small groups on the underside of host leaves. Loosely-woven mesh-like cocoons are spun on the host plant.
Flight: One brood from late January to late May.
Caterpillar Hosts: Manzanita (Arctostaphylos), laurel-leaf sumac (Rhus laurina), lemonade-berry (Rhus integrifolia), and probably others.
Adult Food: Adults do not feed.
Habitat: Chaparral from sea level to 6400 feet.
Range: Southern California south to Rosarita in Baja California, Mexico.
Conservation: United States populations should be inventoried and monitored to determine if conservation is warranted.
NCGR: GU - Unable to assign rank due to lack of available information.
Management Needs: None reported.
Comments: NULL