This wasp in the Sphecid family, is carrying a paralyzed tree cricket (Oecanthus sp.) into a nest hole in one of the bee boxes. These living, but inert, crickets will be fed upon by the wasp larvae once they hatch. I spent some time watching the box and the wasp returned at least three times with a paralyzed cricket. You wouldn't think there'd be enough room in there for that many. In the top image, the long appendages that appear to be coming out of the wasp's mouth, are actually the extremely long antennae of the tree cricket.