Recorded widely across much of mainland Britain, although few records south-west of a line between the Mersey and the Solent (Musgrove, 2023).
A large, black species with metallic reflections. In the female, the mesopleura have pale hairs longer than the width of the basitarsus. Mesosternum mainly unpunctured. In the male, the lateral lobes of the mesonotum are highly polished with at most a few weak punctures. Males best determined by the penis valve.
Dolerus nitens larvae feed on grasses or sedges.
GB IUCN Status: Least Concern
GB Rarity Status: None
Distribution: England, Scotland, Wales, Ireland
Flight period: March to April
Plant associations: Gramineae or Cyperaceae (grasses or sedges)
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 Natural England, unpublished