1. | (Zool.) In the United States, a small, venomous, two-winged fly of the genus Simulium of several species, exceedingly abundant and troublesome in the northern forests; - called also | |
2. | A black plant louse, as the bean aphis (Aphis fabæ), which infests e. g. beans and sugar beets; - called also |
Noun | 1. | ![]() Synonyms: buffalo gnat, blackfly |