Pristiphora borea (Konow, 1904)

Pristiphora borea - Pristiphora carinata group

The hind femur is mainly brown. The clypeus is more or less emarginate medially. The female is best determined by the characteristics of the saw. Males are best determined by the penis valve.

Larvae feed on dwarf birch.

 

Size: 5.5 - 7.5mm

Status: Rare

Distribution: Scotland

Flight period: May to July

Plant associations: Betula nana (dwarf birch)

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, Vol. 59