ponds, ditches and marshes, with dense vegetation. It is now confined
to unpolluted fens and grazing marshes in the Broadlands of Norfolk and
60 - 70 mm.
It has green eyes and clear wings with a diagnostic yellow triangular
mark on the second abdominal segment. The hindwings have an
amber patch at their base.
May - August.
Its common name in English is green-eyed hawker.
In Britain it is a rare and local species, and is known as
the Norfolk hawker.