Synonyms and other taxonomic changes
Spilosoma pteridis Edwards, 1874
Elpis danbyi Neumögen & Dyar, 1893
Explanation of Names
PTERIDIS: from the Greek "pteris, pteridos" (a fern); I don't know the connection between this species and ferns
Identification
head and thorax rusty orange; forewing dark reddish-brown with blackish shading and faint lines; discal spot black, indistinct
hindwing dark charcoal gray with black discal spot and brown fringe
Range
British Columbia to Saskatchewan, south to northern California; one record from Manitoba
Habitat
moist meadows and clearings in coniferous forests; adults are nocturnal and attracted to light
Season
adults fly in May and June
Food
larvae feed on leaves of Fireweed (Epilobium angustifolium) and other herbaceous plants
See Also
Ruby Tiger Moth (
Phragmatobia fuliginosa) has dark reddish-brown or blackish head and thorax, translucent forewing, and red area on hindwing;
Spilosoma danbyi has brown head and thorax, and chocolate brown forewing (
compare images of all three species)
Spilosoma vagans has lighter yellowish or orangish forewings (
compare images of both species; also see
separate image of
S. vagans)
Print References
Lafontaine, J. Donald and B. Christian Schmidt. 2015. Additions and corrections to the check list of the Noctuoidea (Insecta, Lepidoptera) of North America north of Mexico III. ZooKeys 527: 127–147 (available
here)
Internet References
pinned adult image plus common name reference, habitat, flight season, food plant, distribution (G.G. Anweiler, U. of Alberta)
distribution in Canada list of provinces (CBIF)