资料来源 : WordNet®

blackfly
     n 1: blackish aphid that infests e.g. beans and sugar beets [syn:
           {bean aphid}, {Aphis fabae}]
     2: small blackish stout-bodied biting fly having aquatic
        larvae; sucks the blood of birds as well as humans and
        other mammals [syn: {black fly}, {buffalo gnat}]