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

Pollinator Week was June 20-26, 2022!

Butterflies and moths are accidental pollinators of many flowering plants. While most species do not have special structures to carry pollen, they do brush against pollen and transfer it to other flowers.

Did you know? The Eastern Tailed-Blue (Cupido comyntas) flies close to the ground and uses its short proboscis to probe flowers of wild strawberry, white sweet clover, and other low-lying plants.