Paragus haemorrhous, the Black-backed Grass Skimmer is a common widespread species of hoverfly found in many parts of Europe, Africa and the Nearctic.

[1][2] For terminology Speight key to genera and glossary external link to inaturalist images 4.3–5.9 mm (0.17–0.23 in) The face is yellow, moderately projecting, with a black median stripe in both sexes.

The superior lobe varies in shape and size, with an apex that is nearly truncate to strongly oblique, and with a length from one to two times that of the surstylus.

Nearctic: from the Yukon south to Costa Rica also in parts of the Afrotropical region.

[11] Flowers visited include umbellifers, Calluna, Jasione montana, Matricaria, Origanum, Polygonum, Potentilla, Solidago, Stellaria.