Seen on a wall in a river floodplain, central South Carolina (about an inch total length, maybe a tad more).
Looks like a Dobsonfly
http://images.search.yahoo.com/images/view?back=http%3A%2F%2Fsearch.yahoo.com%2Fsearch%3Fei%3DUTF-8%26p%3Ddobsonfly&w=160&h=104&imgurl=www.bing.com%2Fimages%2Fsearch%3Fq%3Ddobsonfly%26id%3D45DB69DC23E74FE12D18375917521EEA76C59D3D%23focal%3D586b7eb2b696cf079e0240012ea08fea%26amp%3Bfurl%3Dhttp%253a%252f%252fmagickcanoe.com%252finsects%252fdobsonfly-female-large.jpg&size=&name=search&rcurl=http%3A%2F%2Fwww.bing.com%2Fimages%2Fsearch%3Fq%3Ddobsonfly%26id%3D45DB69DC23E74FE12D18375917521EEA76C59D3D%23focal%3D586b7eb2b696cf079e0240012ea08fea%26amp%3Bfurl%3Dhttp%253a%252f%252fmagickcanoe.com%252finsects%252fdobsonfly-female-large.jpg&rurl=http%3A%2F%2Fwww.bing.com%2Fimages%2Fsearch%3Fq%3Ddobsonfly%26id%3D45DB69DC23E74FE12D18375917521EEA76C59D3D%23focal%3D586b7eb2b696cf079e0240012ea08fea%26amp%3Bfurl%3Dhttp%253a%252f%252fmagickcanoe.com%252finsects%252fdobsonfly-female-large.jpg&p=dobsonfly&type=&no=1&tt=115&oid=http%3A%2F%2Fts2.mm.bing.net%2Fimages%2Fthumbnail.aspx%3Fq%3D5014752943997269%26id%3D007f64d5eb82835bd9adbde8572e1413&tit=…+Archive+%C2%BB+favourite+moments+%23+3+%E2%80%93+photographing+the+dobsonfly&sigr=16d3imm46&sigi=166llvnfh&sigb=11jj1716r&fr=yfp-t-701
Agree. Grown up hellgrammite.
Well, thanks!