An early spring species. Body and legs black with blueish tinge.
In the female, the front lobe of mesonotum has a fine median keel and punctures along the midline. The mesosternum is densely punctured. Wings may not reach the tip of the abdomen. In males the hairs on the head are dark.
Larvae feed on grasses. In the South East, the species is mainly on chalk grassland.
Status: Locally common
Distribution: England, Scotland, Wales
Flight period: February to April
Plant associations: Graminaceae (grasses)
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