{i} insect that invades plants; gnat; small (somewhat black) biting fly with a sturdy body that has aquatic larvae and sucks the blood of birds and humans and other mammals
small blackish stout-bodied biting fly having aquatic larvae; sucks the blood of birds as well as humans and other mammals blackish aphid that infests e
Any member of the insect family Simuliidae, comprising 300 species of small, humpbacked dipterans found worldwide. Usually black or dark gray, the blackfly has short mouthparts adapted for sucking blood. The females bite and are sometimes abundant enough to kill chickens and even cattle. Some species carry worms capable of causing human disease, including river blindness. In subarctic regions blackflies may be so numerous that human habitation is impossible