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)
The National Biodiversity Network records are shown on the map below. (See terms and conditions)
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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