Ametastegia tenera (Fallén, 1808)

Ametastegia tenera

A genus of slender, elongate sawflies. This species has an entirely black abdomen and black hind legs. The tegulae are black. The scutellum is more or less punctured in the middle.
Larvae feed on docks and prepupate inside stems and soft wood.

Size: 6 - 8mm

Status: Common

Distribution: England, Scotland, Wales, Ireland

Flight period: bi- or multivoltine, April to August

Plant associations: Rumex spp. (docks)

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