If you want allies against the mosquitoes, the best are bats. I well remember being camped by a pond at sunset. There was a cloud of mosquitoes, but the bats came out of the trees and scarfed them up. If there had been a hymn in praise of bats, I would have sung it with gusto. (I gather than polar bears also eat them in large numbers, but they would be inconvenient to keep around.)