Butterflies and Moths of North America

collecting and sharing data about Lepidoptera

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Did you know? The Hummingbird Clearwing (Hemaris thysbe) hovers in flight and uses its long tongue to sip nectar from flowers.

  Sighting 1213098

Arctic Fritillary
Boloria chariclea

Observation date: June 30, 2019
Submitted by: mlvs57
Specimen type: Photograph
Observation notes: This butterfly was on an American Bistort on a sunny day
Status: Resident
Verified by: mikefisher
Verified date: July 25, 2019
Coordinator notes: Your locality and the Colorado county information don't match up but I assume you didn't change that from another sighting made and submitted for Wyoming? This is the Southern Rocky Mountain Arctic Fritillary, not Boloria kriemhild which does not occur in Colorado. You can easily tell the difference between the two if you can examine the underside of the hindwings. There are no white spots at the wing edge on kriemhild. One upperside trait you will have to zoom in on to see is that the submarginal chevrons near the edge point toward the wing edge on the hindwings on kriemhild point while on chariclea [titania] they point toward the base of the wings. Mike
Checklist region(s): United States, Colorado, Conejos County