Removing the seat from Mary’s Tour Easy revealed an unexpected sight:

A closer view:

An insect, most likely a rather large butterfly or moth, decided to pupate on the underside of the seat, tucked inside the old seat cover. We can’t fault the critter’s logic!
Mary is sewing up new seat covers for our Tour Easy ‘bents in preparation for the new riding season. Who knows what we’ll find under there in a few years?
this reminds me: I have to quit being so lazy and get new seat covers for my Shadow Aero.