The head is black with conspicuous tubercles which are usually denser on the lower inner orbits. The thorax and the abdomen are also black. The legs usually have white tibiae though these may be infuscated.
Larvae feed on salad burnet.
Size: 5 - 6mm
Distribution: England, Wales
Flight period: April to July
Plant associations: Sanguisorba minor (salad burnet)
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
Sheppard, D. A., 2019. British Symphyta (draft in preparation)