Speyeria coronis

{{Short description|Species of butterfly}}

{{Speciesbox

| name = Coronis fritillary

| image = Coronis Fritillary - Speyeria coronis, Great Basin National Park, Baker, Nevada.jpg

| image_caption =

| taxon = Speyeria coronis

| authority = (Behr, 1864)

| synonyms =

• Argynnis coronis Behr, 1864
• Argynnis californica Skinner, 1917

}}

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.[http://www.cbif.gc.ca/spp_pages/butterflies/species/CoronisFritillary_e.php 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 {{convert|60|-|86|mm|in|abbr=on}}.[http://www.butterfliesandmoths.org/species?l=1680 Coronis Fritillary], Butterflies and moths of North America

The larvae feed on Viola species.[http://ftp.funet.fi/pub/sci/bio/life/insecta/lepidoptera/ditrysia/papilionoidea/nymphalidae/heliconiinae/speyeria/ "Speyeria Scudder, 1872"] at Markku Savela's Lepidoptera and Some Other Life Forms