Dolerus (Poodolerus) fumosus Stephens, 1835

Dolerus fumosus

A smaller, slender all black Dolerus species. In females the sawsheath is not dilated in dorsal view and with outward directed curved setae. The penis valve in males is distinctive.
Larvae feed on grasses.

Size: 6 - 8mm

Status: Common

Distribution: England, Scotland, Wales

Flight period: April to June

Plant associations: Gramineae (grasses)

References:

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