brummer fly[Obs.var.Afrikaans,Du.brommer blowfly, bluebottle;cf.Du.brommen to hum, buzz, bromvlieg bluebottle.]A species of blowfly generally known as the locust-fly (genus Wohlfahrtia).1913C. PettmanAfricanderisms 92Brummer fly, Cynomyia pictifacies... An insect somewhat like the common house⁓fly, but considerably larger. It is useful in the destruction of locusts.1924Chambers'sJrnl.XIV. 314/2The brummer fly (Wolfahrtia brunis palpis) lays its eggs in the neck of the locust.