blackfly

noun

1. A black or dark green aphid (Aphis fabae) that is a common pest of agricultural crops.
2. Any of various small black bloodsucking flies of the family Simuliidae.

   “According to Bonnie Louison, […] Axel made a mistake when she didn't consult western Massachusetts women about the time and place of the event. Louison said that Axel didn't realize that June is black fly season, that the area is in the grip of a severe drought, […]”