blackfly
Concise Oxford English Dictionary © 2008 Oxford University Press:
blackfly/ˈblakflʌɪ/
▶noun (pl. same or blackflies)
- 1 a black or dark green aphid which is a common pest of crops and gardens. [Aphis fabae and other species.]
- 2 a small black bloodsucking fly which can transmit a number of serious diseases. [Simulium and other genera.]
'blackfly' also found in these Oxford entries:

