Unlike some other species of butterfly, the larvae of the regal fritillary do not build nests. The regat fritillary is wide ranging compared to many other butterfly species. The wingspan of the regal tritillary ranges from 3 to 4 inches. The orange color and black and white hind wings are good identifying characteristics. Flight is rapid, fluttery, and tireless, with the black hind wing readily visible.
Pesticides are also a problem.
Loss of nectar sources due to herbicides may be a problem. Remaining pockets of tall grass prairie should be protected. Pesticide use should be restricted where regal fritillaries are found. The U.S. Fish and Wildlife Service in North Dakota is currently conducting a population status on the regal fritillary.