- blackfly, bean aphid, Aphis fabae - blackish aphid that infests e.g. beans and sugar beets
--1 is a kind of aphid
--1 is a member of Aphis, genus Aphis - blackfly, black fly, buffalo gnat - small blackish stout-bodied biting fly having aquatic larvae; sucks the blood of birds as well as humans and other mammals
--2 is a kind of gnat
--2 is a member of Simulium, genus Simulium