A black or dark green aphid (Aphis fabae) that is a common pest of agricultural crops.
Any of various small black bloodsucking flies of the family Simuliidae.
A small flying insect of the family Culicidae, the females of which bite humans and animals and suck blood, leaving an itching bump on the skin, and sometimes carrying diseases like malaria and yellow fever.
To fly close to the ground, seemingly without a course.