Legs with at least the front legs red. Middle and hind tibia mostly red. In the female the mesonotum is red at least on the side lobes but entirely black in the male. The head is bronzey. One of only two Dolerus species found on the wing in mid to late summer. This species is best identified by the genitalia.
Distribution: England, Scotland, Wales, Ireland
Flight period: May to September
Plant associations: Equisitum sp. (horsetails - wet habitat species)
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