Wing length 5 to 7.5 mm. This species has a slightly 'wasp waisted' abdomen. Segment T2 is narrower than it is long and it has greyish 'hockey stick' shaped markings.
A. transfuga has similar markings but with segment T2 parallel sided and wider then long.
Usually seen on emergent vegetation at the margins of still water.
April to September peaking in June and July.
Larvae have been found living between the leaf sheaths of rotting plants.
Widely distributed but local in Britain.
Thought to be infrequent in Leicestershire and Rutland.
Leicestershire & Rutland Map
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