We have two types of Assassin Bugs around here that I've seen. Both are carnivorous not the bloodsucking kind. First is the
Bee Assassin which I've only seen with a Japanese beetle in it's grasp, and the
Wheel Bug which was also preying on JB's. They have a very interesting way of eating them. Unfortunately, they don't kill enough of the beetle's to be an effective biological control on them. The Wheel bug will bite if you attempt to pick it up, but they usually fly away well before that can happen. Stink Bugs are their cousins.