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Species Spilosoma pteridis - Brown Tiger Moth - Hodges#8139

Brown Tiger Moth - Spilosoma pteridis Brown Tiger Moth - Spilosoma pteridis Brown Tiger Moth - Spilosoma pteridis - male 811 Spilosoma pteridis - Brown Tiger Moth 8139 - Spilosoma pteridis - male Spilosoma danbyi - Spilosoma pteridis - male Moth - Spilosoma pteridis Spilosoma pteridis - Brown Tiger   8138 - Spilosoma pteridis Rusty moth with lines - Spilosoma pteridis - male
Show images of: caterpillars · adults · both
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Lepidoptera (Butterflies and Moths)
Superfamily Noctuoidea (Owlet Moths and kin)
Family Erebidae
Subfamily Arctiinae (Tiger and Lichen Moths)
Tribe Arctiini (Tiger Moths)
Subtribe Spilosomina
Genus Spilosoma
Species pteridis (Brown Tiger Moth - Hodges#8139)
Hodges Number
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
wingspan about 32 mm
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
British Columbia to Saskatchewan, south to northern California; one record from Manitoba
moist meadows and clearings in coniferous forests; adults are nocturnal and attracted to light
adults fly in May and June
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)