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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Butterflies and Moths (Lepidoptera) » Butterflies and Skippers (Papilionoidea) » Brush-footed Butterflies (Nymphalidae) » Heliconians and Fritillaries (Heliconiinae) » Fritillaries (Argynnini) » Greater Fritillaries (Speyeria) » Hesperis Fritillary - Hodges#4459.1 (Speyeria hesperis) » Speyeria hesperis dennisi
Photo#313074
Fritillary - Speyeria hesperis - female
Copyright © 2009 Tim Loh

Fritillary - Speyeria hesperis - Female
Edworthy Park, Calgary, Alberta, Canada
July 18, 2009
Size: 55 mm ws
Captured while it was nectaring on flowers; specimen is a bit worn when I found it unfortunately; I suspect this is the northwestern fritillary (Speyeria hesperis)..would like confirmation. Thanks!

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Fritillary - Speyeria hesperis - female Fritillary - Speyeria hesperis
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Contributed by Tim Loh on 31 July, 2009 - 1:17pm
Last updated 1 August, 2009 - 10:12pm

Moved
Moved from ID Request.
… Tim Loh, 1 August, 2009 - 10:12pm login or register to post comments

Correct, Speyeria hesperis, with qualifications
This is part of a very distinctive prairie population of Fritillaries, which some authors consider to be a distinct species that has been called Speyeria lais. Some put it into S. atlantis instead.

It is listed in John Pelham's catalog as Speyeria hesperis ssp. dennisi, a younger name, but the valid one. It has also been called helena.

Confusing isn't it. Since we are following the Pelham catalog here, you will find the name Speyeria hesperis ssp. dennisi used.

By the way, it's a female
… David J. Ferguson, 1 August, 2009 - 8:29pm login or register to post comments

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