Pipizinae
Guides
Heringia
Smoothleg Flies
Heringia is a genus of small hoverflies (Syrphidae) commonly known as Smoothleg Flies. Species occur in North America and Europe. Larvae are predatory on specific aphid species, including woolly apple aphid (Eriosoma lanigerum), woolly elm aphid (Schizoneura), and aphids on poplar (Pemphigus) and fir (Dreyfusia). Adults feed on honeydew and pollen. The genus is part of the "little black fly" group, with females generally unidentifiable to species.