Pachyprotasis simulans
One of the black and white Pachyprotasis species very similar to Pachyprotasis rapae and Pachyprotasis variegata. This is marginally smaller than the other two species. It can be differentiated by tergites with white apical margins that are broader in the midline than at the lateral edges, and the hind femora that are black and white in both sexes.
Larvae feed on figworts, goldenrod and ragworts.
Size: 6.5 - 7.5mm
Status: Very rare
Distribution: England, Scotland, Wales
Flight period: May to June
Plant associations: Scrophularia spp., Solidago sp., and Senecio spp. (figworts, goldenrod and ragworts)
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