There are three very similar Parhelophilus species, all are compact and brightly coloured hoverflies, well covered in yellow hairs. Separation of the species needs careful and close examination.

Particularly alongside ponds and ditches.

April to October, peaking in June.

The larvae have been found in the leaf shields of Bulrush.

It is widespread in southern Britain.

Infrequent in Leicestershire and Rutland.