Via Homely Scientist, I’m introduced to the shockingly large Vespa mandarinia (a.k.a. the Asian Giant Hornet, a.k.a. Japanese Hornet).
He quotes the wikipedia article on the species:
The venom contains 5% acetylcholine, a greater concentration than is present in bee or other wasp venoms. Acetylcholine stimulates the pain nerve fibres, intensifying the pain of the sting.
I haven’t [...]