In the female, the scutellum, the mesonotum and abdomen are almost entirely yellow. The clypeus is only incised to a depth less than half the total depth of the clypeus. The head is black with usually a yellow mark on the upper orbits.
The male has the abdomen yellow above with a variable amount of black. The posterior projection on the eighth tergite is very large being at least 1.3 times as broad as the apex of the hind tibia.
Larvae feed on currants, including redcurrant, gooseberry and mountain currant.
Size: Female: 6.0 - 7.0mm, male: 6.0 - 7.0mm.
Distribution: England, Scotland, Wales, Ireland
Flight period: Multivoltine, April to September
Plant associations: Ribes rubrum, Ribes uva-crispa and Ribes alpinum (redcurrant, gooseberry and mountain currant)
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
Prous, M., Liston, A., Kramp, K., Savina, H., Vårdal, H. and Taeger, A., 2019. The West Palaearctic genera of Nematinae (Hymenoptera, Tenthredinidae). ZooKeys, 875, p.63-127