Butterfly Photos / Horace's DuskywingLast Update: 9/4/2015
I think this is a Horace's Duskywing. I saw it at Swan Harbor Farms, MD on July 15th, 2012. If my ID is wrong, feel free to let me know so I can learn and fix it.
I saw this one at Perryman Park on July 22nd, 2012.
This one was at the Patuxent Research Center on July 10th, 2015.