Butterflies and Moths of North America

collecting and sharing data about Lepidoptera

  Sighting 732290

Northwestern Fritillary
Speyeria hesperis

Observation date: August 11, 2012
Submitted by: Tommie Rogers
Specimen type: Photograph
Observation notes: feeding on thiste
Status: Resident
Verified by: mikefisher
Verified date: October 05, 2012
Coordinator notes: A female of subspecies electa. The populations of this species in western Colorado have silvered spots on the underside of the hindwing (rarely unsilvered) while those on most of the eastern side of the Continental Divide are unsilvered.
Checklist region(s): United States, Colorado, Ouray County