Body entirely black with yellow tibiae, apices of femora and sometimes whole of hind femur. The temples are without punctures and the scutellum has only the hind margin lined with small punctures. Hind wing with an enclosed middle cell.
Larvae feed on rushes and sedges including greater-tussock sedge.
Size: 5 - 7mm
Distribution: England, Scotland, Wales
Flight period: Univoltine, May to August
Plant associations: Juncus spp., Carex paniculata, and Carex hirta (rushes, greater-tussock sedge and hairy sedge)
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
Macek, J. (2014) ‘Descriptions of larvae of the Central European Eutomostethus species (Hymenoptera: Symphyta: Tenthredinidae)’, Acta Entomologica Musei Nationalis Pragae, 54(2), pp. 685–692.