Vast swarms of amorous flying ants are flitting around tonight, landing in ears and hair, raining on cars and dropping into people's frappes

Jamaica Plain, Roslindale and Hyde Park Facebook groups tonight are full of accounts of people and vehicles getting stuck in a mating frenzy of zillions of tiny flying ants, in those neighborhoods and West Roxbury and Dedham, too (Update: Cambridge and Somerville, too