Heringia canadensis explained

Heringia canadensis , the Canadian smoothleg, is a fairly common species of syrphid fly observed in many parts of North America. Hoverflies can remain nearly motionless in flight. The adults are also known as flower flies for they are commonly found on flowers from which they get both energy-giving nectar and protein-rich pollen. Larvae when known are aphid predators.^{[1] [2] [3]}

Notes and References

1. Book: Skevington, Jeffrey H . 2019 . Field Guide to the Flower Flies of Northeastern North America. . 9780691189406 .
2. Curran . C. H . 1921 . Revision of the Pipiza group of the family Syrphidae (flower-flies) from north of Mexico . Proc. Calif. Acad. Sci. . (4) 11 . 345–393. .
3. Rotheray . G.E. . 1993 . Colour Guide to Hoverfly Larvae (Diptera, Syrphidae) in Britain and Europe . Diperists Digest . 9 . 155 .