The beautiful white-streaked Saturnia moth (Saturnia albofasciata) ranges from northern California to Baja California Norte, Mexico.
This uncommon moth is found in mountain chaparral communities on warm days (usually associated with seasonal Santa Ana wind conditions) in late October and early November.
The male (shown here) searches for female pheromones in the late afternoon hours during a brief crepuscular flight from approximately 1630 to 1730 PDST.
The males have a wingspan of approximately one inch. The very rarely observed females (see below and click) are mostly grayish, slightly larger and are nocturnal.