This species has few cross veins and non forking veins along the front of the wing. The all dark antennae separate S. nigra from other similar species.
Around streamside vegetation.
April to October.
Larvae feed on freshwater sponges.
Widespread and fairly frequent in Britain.
Infrequently recorded in Leicestershire and Rutland. There were approximately 8 validated records for this species according to the 'Checklist of Neuroptera and allies in VC55' published in 2018.
Leicestershire & Rutland Map
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