Synonyms and other taxonomic changes
Ectypia clio (Packard, 1864)
Seirarctia clio Packard, 1864
Seirarctia clio var. jessica Barnes, 1900
Phylogenetic sequence # 930422
Wingspan 45-50 mm.
Larvae mature to 30 mm (Comstock & Dammers, 1935).
Pupa 17 mm (Comstock & Dammers, 1935).
Adult - all white except for black lines along veins of forewing and three longitudinal black lines on top of thorax.
w US: Western Oregon to southern Califonia; Montana, eastern Wyoming, western Nebraska, Colorado, Utah, southern Nevada and Arizona to western Texas - Map
Larvae feed on milkweed (Asclepias
, Asclepiadaceae) and dogbane (Apocynum
, Apocynaceae). Behr reported them on spreading dogbane
1. Two day old larva. Twelve day old larva. Twentyfour day old larva. 4. Adult male, female and egg cluster
has short black streaks on forewing (not continuous lines), only two lines on top of thorax, and is restricted to the far south (New Mexico, Texas, Oklahoma)
Barnes, W. 1900. New species and varieties of North American Lepidoptera. The Canadian Entomologist 32(2): 45. (3)
Behr, H. 1882. Prepatory stages of Seiarctia clio
, Pack. Papilio 2(9-10): 187
Comstock, J.A. & C.A. Dammers 1935. Notes on the early stages of three butterflies and six moths from California . Bull. Southern California Acad. Sci. 34(2): 136
Packard Jr., A.S. 1864. Synopsis of the Bombycidea of the United States. Proceedings of the Entomological Society of Philadelphia 3: 120
Powell, J.A. & P.A. Opler 2009. Moths of Western North America. University of California Press. p.272, pl.48.13 (2)