Speyeria coronis, the Coronis fritillary, is a butterfly of the family Nymphalidae of North America. It is common from Baja California to Washington and east to Colorado and western South Dakota and once reported in Alberta.Coronis Fritillary, Butterflies of Canada
This butterfly is mostly orange and yellow with distinct dark-brown bars on the topside. The wing margins are dark with lighter circles then dark crescents. Silvery spots predominate on the yellowish underside.Jim P. Brock and K. Kaufman. Kaufman Field Guide to Butterflies of North America, New York, NY:Houghton Mifflin, 2003.
Wingspan ranges from .Coronis Fritillary, Butterflies and moths of North America
The larvae feed on Viola species."Speyeria Scudder, 1872" at Markku Savela's Lepidoptera and Some Other Life Forms
Similar species Zerene fritillary – Speyeria zerene Edwards' fritillary – Speyeria edwardsii
Subspecies Listed alphabetically: S. c. halcyone (Edwards, 1869) S. c. hennei (Gunder, 1934) S. c. semiramis (Edwards, 1886) S. c. simaetha dos Passos & Grey, 1945 S. c. snyderi (Skinner, 1897)
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