Pristiphora alpestris (Konow, 1903)

Pristiphora alpestris - Pristiphora alpestris group

The female is best determined by the characteristics of the saw. Males are best determined by the penis valve.

Larvae feed on birches and develop rapidly (10 to 15 days).

 

Size: 5.0 - 6.0mm

Status: Data deficient

Distribution: England

Flight period: May to July

Plant associations: Betula pendula and Betula pubescens (silver and downy 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