Pristiphora thalictri - rufipes group
The species separations in the rufipes group are unclear. One of two species in Britain and Ireland that feed on meadow-rue, the other being brevis. The species are predominantly black bodied. Females of species in this group all have a distinct scopa on the apex of the sawsheath. Males and females of brevis and thalictri cannot be separated other than by DNA analysis at this time.
Pristiphora thalictri larvae feed on common meadow rue.
Size: 4.5 - 5.5mm
Status: Data deficient
Flight period: Assumed May to August
Plant associations: Thalictrum flavum (Common meadow-rue)
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
Prous, M., Kramp, K., Vikberg, V. and Liston, A., 2017. North-Western Palaearctic species of Pristiphora (hymenoptera, tenthredinidae). Journal of Hymenoptera Research, 59