Was riding once with my baggy mtn biking shorts, some wasp or bee got up the leg and on my thigh and started wearing me out! Luckily it was between the outer and inner shorts so that prevented any real deep penetration.

Then once when finishing the last few struggling miles of a century, one flew through the slits in my helmet and nailed me in the top of the head. Didn't need that, especially then.

Thus far I've been lucky on the face though I always ride with some type of glasses.