There can be no denying that these guys are really alien scout ships. Note the metal construction of the body (fuselage) and "head" (cockpit). Note too the serrated jaws. Though not visible in this shot, the underside of this bug (craft) reveals a complex hydraulics package for driving the mechanized wings. The two dark orb-like windows at the front give nearly 360 degrees of vision to the pilots.

I, for one, welcome our new micro-robot overlords...