There are a lot of species of bugs here, and some can be quite hard to figure out. The ones that are all or mostly black are certainly the toughest. So I am going to note that I think this is a big-legged plant bug in the genus Acanthocephala but really can't be sure. I have found members of this genus here before but that just might not matter given the diversity at the FCRE.
Keith Christenson - Wildlife Biologist