There is very little published information on this entirely black species. The front lobe of the mesonotum has a fine medial groove. The mesosternum is almost impunctate.
Larvae are unknown but the species is found close to water bodies.
Distribution: England, Scotland
Flight period: March
Plant associations: unknown
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
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