This photograph of a Regal Fritillary (Speyeria idalia) was taken by our member Gordon Adams. This butterfly species is typically found in prairie or other open environments (more often in sandy regions). This is a state enangered species. More information can be found in the book – Field Guide to Butterflies of Illinois by John Bouseman and James Sternburg (2001 – ISBN 1-882932-05-6).