Sparky is a male earwig (one can tell by the shape of the pincers), and a typical pet of Up-Evolved wasp and bee colonies since they're as much scavengers as they are leaf-eaters - a strip of jerky or rawhide, a head of lettuce or two and the occasional trip to the compost piles are enough to keep them happy for a week - just remember to bathe your earwig after the latter.

Males, such as the one pictured, have wide pincers that resemble the mandibles of many warrior class insects, while the females tend to have straighter pincers that come together in a finely tapered point.

Unlike many wild insects, many species of Earwig actually watch over their eggs (20-50 per clutch) and their newly hatched nymphs through several of their instar stages - though mommas get cranky once resources get scarce and have been known to eat freeloading children if they don't leave the nest once large enough to forage for themselves.

Another little known insect fact regarding male earwigs is that they have two penises, though they favor one (right or left) throughout their lives, the other held in reserve until such a time as it becomes necessary - such as breaking off inside a female during interrupted mating, usually caused by a predator.

How male earwigs evovled a 'spare' is unknown at this time, but it seems the loss of one of their primary members is just common enough to make it a functional survival tactic.

Doubtless, the few females out there with their counterpart's members stuck in them aren't too happy, but it doesn't seem to interfere with egglaying.