Ametastegia perla

A genus of slender elongate sawflies. In Ametastegia perla 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.

Larvae feed on redshank, osiers and poplars.

Jump to other Ametastegia species

Size: 5 - 6mm

Status: Local

Distribution: England, Scotland, Ireland

Flight period: June

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


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.