15 Aug 2012.
Buckingham Springs, Bucks Co, PA.
This is Hypagyrtis esther or unipunctata.
Attracted to porch light.
According to the info page for H. unipunctata on BugGuide.net: "Distinction between unipunctata and esther by external appearances not reliable."
ID courtesy of John Maxwell:
Rana palustris. NJCF's Wickecheoke Creek Preserve - a wonderful place in , Hunterdon Co., NJ.