A larger species with setiform black antennae and the abdomen banded in yellow in the mid tergites (four to six in the female and all except the first and last two in the male). The stigma is unicolorous black, or nearly so and the costa is yellow. Different from Tenthredo temula in having a yellow pronotal edge and scutellum.
Larvae feed on various coarse grasses.
Size: 12.5 - 14mm
Distribution: England, Scotland, Wales
Flight period: May to July
Plant associations: Graminae including Brachypodium spp. and Dactylis spp. (false brome, cocksfoot)
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
Fekete, K. (2018) Beginner’s guide to identifying British Tenthredo, Natural History Museum, London. http://www.nhm.ac.uk/content/dam/nhmwww/take-part/identification-trainers/sawflies-guide-id-trainees.pdf [Accessed 26Apr2019]