Yuk. I don’t even know what a bot is, if you don’t count the trolls on FR. Maybe I don’t want to know.
I remember them looking like this (and how I can’t help imagining internet bots):
https://www.equimaxhorse.com/media/k2/items/cache/c82cc4e14a1d2c8c8ffff9840d24b558_XL.jpg
En masse, they’re super gross (warning: disturbing photo):
https://entnemdept.ufl.edu/creatures/livestock/horse_bot_fly04.jpg