I rode my motorcycle through a swarm of migrating bees about a year ago.
Literally thousands of 'em.
My jacket had hundreds of dead bees all over it, my helmet had bee-guts from at least 50 bees. I had at least a dozen bees up the sleeves of my jacket, and four or five down the collar of my coat. I still kept my cool and pulled over under 100% control, then pulled off all my riding gear to get rid of the stragglers.
Glad it wasn't a horde of flying spiders.