I had to laugh when I read this because something very similar happened to me. I too was much younger and I was tooling around the back country roads of home riding in all my glory and had my mouth open and this big, hard carapace of an insect damn near went right down my throat! Wow! Like yourself I have learned to keep my mouth shut while riding my bike!! Sometimes I think I ought to keep my mouth shut when I'm not riding my bike!! :s That could serve me well too!It's funny just to read each post and visualize it happening. I replied to the time I was stung in the previous thread. But I also had an uncomfortable happening with a large brown hard shell flying beatle once. He flew into my mouth when I was a teenager riding with no helmet. I'm sure he was trying to crawl out and I was doing everything I could to help him including sticking my finger in there.
But his legs were shoving around everywhere and his sense of direction was confused because it must of been at least 15 solid seconds before that demon finally got out of my mouth. His feet (or whatever you call them) where sharp and his legs were extremely strong and they gripped so well I could not pull him out without getting cut. It was not something I want to go thru again. I learned to keep my mouth shut afterwards while riding.
(later edit) Haha just also read your post above Don that popped in about same time as mind. Enjoyed that one.