Ametastegia perla (Klug, 1818)

Ametastegia perla

A genus of slender elongate sawflies. In this species the abdomen is marked with black above and yellow below. In the female the tergites are black with a median row of triangular yellow patches that broaden apically. In the male the yellow extends across the entire apical margin of each tergite so that the black is broken into a series of lateral spots.

Size: 5 - 6mm

Status: Local

Distribution: England, Scotland, Ireland

Flight period: June

Plant associations: Polygonum persicaria (redshank), Salix viminalis (osier) and Populus spp. (poplars)

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