Heringia canadensis (Curran 1921) , the Canadian Smoothleg , is a relatively not unusual species of syrphid fly seen in lots of portions of north the usa. Hoverflies can stay just about immobile in flight. The adults also are referred to as flower flies for they’re recurrently discovered on plants from which they get each enegy-giving nectar and protein wealthy pollen. Larvae when recognized are aphid predators
ology of Diptera]].