Soon joined by others, the swarm increases and increases and increases until the mass of insects forms a long symmetrical top-shaped mass that swirls about, emanating a strong screaming hum audible at a distance of one hundred yards. Cows refuse to eat.
Automobile radiators clog.
People become nauseated and have trouble breathing. What I have described is the mating frenzy of the Klamath midge, Chironomus utahensis, taken from a 1941 paper on the biology of the insect. Perhaps the description was a little overdone, or perhaps conditions have improved somewhat since 1941. For many Klamath residents and visitors, however, the midge is still a nuisance. Although these tiny midges superficially resemble mosquitos, they are quite different.