The coxae are black. The hind femora may only be dark at the apex and in the male maybe red. The hind tarsus is darker than the apex of the tibia. The scutellum is punctured all over. Usually, the clypeus, mandibles and all sternites are dark.
Larvae feed on hazel.
Size: 8 - 10mm
Flight period: May to June
Plant associations: Corylus avellana. (hazel)
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