Heringia or the Smoothleg fly is a genus of hoverflies, from the family Syrphidae, in the order Diptera.

The species are distributed in North America and Europe [2] Larvae are predatory upon Schizoneura aphids on Ulmus and Pemphigus aphids on Populus, Dreyjusia piceae on Abies and Eriosoma lanigerum on Malus.

[3] For terminology see Speight key to genera and glossary Archived 2023-01-22 at the Wayback Machine Another genus of LBFs (little black flies) Females can not be identified to species The eyes and face of this genus are densely pilose.

The straight face and evenly rounded oral margin are also noticeable, with the frontal prominence very short.

The face is black, with the front slightly swollen, and the antennae are short in males and long in females.