dobson fly
— Noun
– English
～ large soft-bodied insect having long slender mandibles in the male; aquatic larvae often used as bait
deer fly fever
— Noun
– English
～ a highly infectious disease of rodents (especially rabbits and squirrels) and sometimes transmitted to humans by ticks or flies or by handling infected animals
dry fly
— Noun
– English
～ a fly (fisherman's lure) that skims the surface of the water