Pristiphora bifida (Hellén, 1948)

Pristiphora bifida - Pristiphora ruficornis group

The tarsal claws are bifid with a long subapical tooth close to the apical one. Males have numerous stout black setae on the antennae amongst finer pale ones. In both sexes, the hind trochanter, trochantelli and tibia are partially pale.

Pristiphora bifida larvae feed on common osier.

Size: 4.5 - 5.5mm

Status: Rare

Distribution: Scotland

Flight period: Assumed May to August

Plant associations: Salix viminalis (osier)

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

Prous, M., Kramp, K., Vikberg, V. and Liston, A., 2017. North-Western Palaearctic species of Pristiphora (hymenoptera, tenthredinidae). Journal of Hymenoptera Research, 59

Prous, M., Vikberg, V., Liston, A. and Kramp, K., 2016. North-western Palaearctic species of the Pristiphora ruficornis group (Hymenoptera, Tenthredinidae). Journal of Hymenoptera Research, 51