Abdomen more or less red banded and at least the front legs red marked. Wings entirely hyaline. The scutellum with regularly sized punctures that thin out at the front and those puncture of similar size to the ones on the middle of the mesonotal lobes (different to bimaculatus). Benson describes this as a northern species.
Larvae are not described but assumed to feed on horsetails.
Status: Locally common in N.England and Scotland
Distribution: England, Scotland, Wales
Flight period: May to June
Plant associations: Equisitum sp? (horsetails)
Benson, R.B., 1952. Handbooks for the Identification of British Insects. Hymenoptera, Symphyta, Vol 6, Section 2(a-c), Royal Entomological Society, London
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