Recorded widely across all of mainland Britain, if somewhat local (Musgrove, 2023).
Both sexes: A large species with a variable amount of red colour. Normally red-belted but if the abdomen is entirely black then so are the legs. Best determined by genitalia.
Dolerus pratensis larvae feed on wet habitat horsetails.
Size: 10 - 13mm
GB IUCN Status: Least Concern
GB Rarity Status: None
Distribution: England, Scotland, Wales, Ireland
Flight period: May to June
Plant associations: Equisetum sp. (horsetails - wet habitat species)
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
Musgrove, A.J. 2023. A review of the status of sawflies of Great Britain - Phase 2: The Athaliidae and the Tenthredinidae (excluding Nematinae). Natural England, unpublished