Hello this bug was outside my home in Missouri it was around 6 inches long inclding wings never seen one before
Prity scarry
http://img830.imageshack.us/img830/4757/10019150.jpg

Looks like a dobsonfly to me.

Dobsonflies | Iowa Insect Information Notes (http://www.ipm.iastate.edu/ipm/iiin/node/143)