Field Crescent

Thank you Heidi Eaoton for the ID and the link.

I'd suggest the Field Crescent, because it would be within its range and the markings look like more of a match to me, but I'm just an amateur. I have seen a ton of both Field and Pearl Crescents here in Colorado, though.

Thank you David A Rutter for the ID and the link.

Could be a male Pearl Crescent. It would be a bit out of its usual range though.