A thoroughly impressive Giant Stag Beetle, Lucanus elaphus. Including the mandibles, a male like this can measure 2.5 inches in length (go ahead, hold your fingers that far apart :-) ). Males use those mandibles to spar with one another during "rutting" season. The larvae of this incredible insect feed on rotting wood - one of myriad life forms that depends on downed or dying timber. John Howard found this stag beetle in Adams County and it represents one of few Ohio records. It will be interesting to see if this southern beetle expands northward in coming years.A closer look at those formidable mandibles. While its grub - larval stage - lives for nearly a year, the adult stage lasts but a few months. You may be wondering - do these insects "bite"? Not really. The mandibles are used for jousting with other males, and the insect cannot exert significant pressure with them. A finger in the mandibles would feel like a very soft pinch, not nearly strong enough to break the skin.
I appreciate John detaining the beetle until I and some others could get there to see it.