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Speyeria cybele
Yes, there are several similar subspecies, however, for getting down to subspecies you need a closer shot.
Looks very similar to Speyeria cybele the Great Spangled Fritillary. However, there are several subspecies that look similar. Maybe you can figure it out from this:
http://bugguide.net/node/view/4221/bgpag...
Not as sharp as to be able to see all the important details, but I think it may be Speyeria cybele.