hoverfly
Concise Oxford English Dictionary © 2008 Oxford University Press:
hoverfly/ˈhɒvəflʌɪ/
▶noun (pl. hoverflies) a fly, typically black and yellow, which frequently hovers in the air and feeds on the nectar of flowers. [Family Syrphidae : many species.]
'hoverfly' also found in these Oxford entries:

