Drake Mackerel Mayfly

Ephemera vulgata

Increasingly spreading Mayfly in Britain.

Flies from late April-early June.

They can be told in both Adult and subimago stages from the rather similar green drake (Ephemera danica) by its duller colour and slightly smaller size.

The wings are more heavily veined and the upper side of the abdomen has pairs of dark lateral markings on each segment.