Paragus haemorrhous Meigen, 1822
Biology & ecology:
The larva feeds on a range of ground layer and arboreal aphids. Adults are generally found resting on, or hovering above, bare ground along tracks and paths in a variety of situations including grassland, sandy heath, dunes and coastal cliffs. They can occasionally be seen visiting flowers. Males patrol sunny patches and stands of flowers.
Much the commonest member of the genus, but probably overlooked by many recorders. It is perhaps most frequent on chalk grassland in southern England, and in coastal habitats all around southern Britain. It is scarcer elsewhere, but with records extending to northern Scotland.
Status & conservation:
Trends suggest that this species' occurrence is increasing.