A genus of slender elongate sawflies. In Ametastegia pallipes the abdomen is entirely black above and below and with tegulae and hind legs mostly white. The scutellum is dulled by dense surface striations between the punctures.
Larvae feed on violets and can become a pest for commercial growers.
Size: 6 - 8mm
Distribution: England, Scotland, Wales, Ireland
Flight period: April to September
Plant associations: Viola spp. (violets and pansies)
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