Saw lots of these critters on my afternoon constitutional. All over the sidewalk. In broad daylight, for Bob's sake.
From what I've heard, these creatures mate butt to butt, then STAY that way, even in flight. After the mating is complete, the male dies. Then the female drags her dead husband around by his anus until she lays her eggs, at which point she too, dies.
How romantic.
This episode of weird shyte was brought to you by.... uh.... ME, I guess.