Black bodied in both sexes, though the pronotum may be edged narrowly with white. The occipital carina does not extend more than half way up the eye. The distance between cenchri is less than the width of a cenchrus, the cenchri themselves being elongate (3:1). In males the hind femora are black.
Larvae feed on bracken.
Size: 5 - 6mm
Distribution: England, Scotland, Wales, Ireland
Flight period: May to August
Plant associations: Pteridium aquilinum (bracken)
The National Biodiversity Network records are shown on the map below. (See terms and conditions)
Benson, R.B., 1952. Handbooks for the Identification of British Insects. Hymenoptera, Symphyta, Vol 6, Section 2(a-c), Royal Entomological Society, London
Blank, S.M., 1998. Die mittel - und nordeuropaischen Selandriinae (Hymenoptera:Tenthredinidae).
Liston A, Knight G, Sheppard D, Broad G, Livermore L (2014) Checklist of British and Irish Hymenoptera - Sawflies, ‘Symphyta’. Biodiversity Data Journal 2: e1168. https://doi.org/10.3897/BDJ.2.e1168