DISTRIBUTION: Saturnia (Rinaca) jonasii fukudai (wingspan: males: 88mm; females: ??) flies in Taiwan: Nantou County, Miaoli County,. Saturnia (Rinaca) fukudai male, Taiwan, 88mm, courtesy of Ron Brechlin, on my home computer only. FLIGHT TIMES AND PREFERRED FOOD PLANTS: Moths are on the wing in December (probably also earlier) and females deposit eggs that diapause in egg stage. Larvae possibly feed on Populus deltoides. Saturnia (Rinaca) jonasi fukudai male, Guanwu, Hsinchu, Miaoli County, Taiwan, December 28, 2010, 2000m, courtesy of Bettaman. ECLOSION, SCENTING AND MATING: Females extend a scent gland from the tip of their abdomens to "call" the males. Males use their antennae to hone in on the airbourne pheromone. The forewings of the female are rounded in contrast to the more falcate form of the males. EGGS, LARVAE, COCOONS AND PUPAE: Eggs are affixed to twigs in the fall and overwinter in that stage. Mature larvae spin an extremely porous cocoon which is affixed longitudinally to host stems. The muddy, grey-brown pupa and discarded larva skin are visible through the "mesh". Larval Food Plants It is hoped that this alphabetical listing followed by the common name of the anticipated foodplant will prove useful. The list is not exhaustive. Experimenting with closely related foodplants is worthwhile. Betula pendula Populus deltoides..... Birch Eastern cottonwood Use your browser "Back" button to return to the previous page. Return to Main Index Return to Saturnia Index Return to Rinaca Index