Observation notes: I observed at least 3 or more individuals of this species. It had a very distinct flight pattern compared to other more common species present, such as N. Checkerspot or Mylitta Crescent. I did not have a net with me so I was unable to observe in hand. the Picture is not the best, so I would understand if definitive identification is not possible from this picture. If an expert thinks this could be a rockslide checkerspot, I would return to the location to investigate more thoroughly (with a net this time!)
Verified by: Ken Davenport
Verified date: August 12, 2011
Coordinator notes: I don't believe Rockslide Checkerspot (actually Whitney's Checkerspot) Chlosyne whitneyi goes that far north in its range. Hoffmann's Checkerspot is a prize butterfly too!