This genus is the Dalmatian of the fly world, with a striking chequered appearance. The background is usually grey but can be brown with distinct black spots.
Anthomyia pluvialis is very similar to A. imbrida and A. procellaris. Pluvialis can normally be distinguished by the dark mark at the base of the wings being divided into two separate spots. In procellaris and imbrida this is fused into one connected spot. In procellaris this spot has a straight rear boundary wheras in imbrida it is more notched. It is also useful to count the anterodorsal setae on the hind tibia (males), there are 9-15 in A. imbrida, less in the others. (Note that A. imbrida has not been recorded in Leics and Rutland).
It is often seen on umbellifers and other flowers.
Summer and Autumn.
It is thought to 'dance' before rain, hence its scientific name. It breeds on rotting vegetation.
Fairly common and recorded across England and Wales.
Fairly common in Leicestershire and Rutland
Leicestershire & Rutland Map
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