''Speyeria hesperis'', the northwestern fritillary, is a

butterfly Butterflies are insects in the macrolepidopteran clade Rhopalocera from the order Lepidoptera, which also includes moths. Adult butterflies have large, often brightly coloured wings, and conspicuous, fluttering flight. The group comprise ...

of the family

Nymphalidae The Nymphalidae are the largest family of butterflies, with more than 6,000 species distributed throughout most of the world. Belonging to the superfamily Papilionoidea, they are usually medium-sized to large butterflies. Most species have a red ...

. It is found in the

northwestern United States The Northwestern United States, also known as the American Northwest or simply the Northwest, is an informal geographic region of the United States. The region consistently includes the states of Oregon, Washington, Idaho, Montana and Wyoming. ...

and

western Canada Western Canada, also referred to as the Western provinces, Canadian West or the Western provinces of Canada, and commonly known within Canada as the West, is a Canadian region that includes the four western provinces just north of the Canada� ...

, as far east as Manitoba and the Dakotas.Northwestern Fritillary
Butterflies and Moths of North America With a wingspan of between , this fritillary is relatively small. It has bright orange uppersides (yellow in females) and thinner black markings than most fritillaries.Northwestern Fritillary
Butterflies of Canada

Similar species

Aphrodite fritillary The Aphrodite fritillary (''Speyeria aphrodite'') is a fritillary butterfly, from North America. This orange coloured fritillary has rows of dark dots or chevrons at the wing edges and black or brown lines more proximally. The ventral sides of ...

(''Speyeria aphrodite'') *

Atlantis fritillary ''Speyeria atlantis'', the Atlantis fritillary, is a butterfly of the family Nymphalidae of North America. It is from the Avalon Peninsula of Newfoundland and Labrador to northern British Columbia, across the northern United States south as far a ...

(''Speyeria atlantis'')

References

Speyeria Butterflies of North America Butterflies described in 1864 Taxa named by William Henry Edwards {{Heliconiinae-stub