Pristiphora albilabris - Pristiphora carinata group
The mesopleura is dulled by microsculpture. The labrum, pronotum, tegulae, coxae, femora and bases of tibiae are reddish-yellow. The female is best determined by the characteristics of the saw. The sawsheath is triangular when viewed from above. Males are best determined by the penis valve.
Pristiphora albilabris larvae feed on downy birch and may also feed on other birches.
Size: 6.0 - 7.0mm
Status: Data deficient
Distribution: England, Scotland, Wales
Flight period: May to July
Plant associations: Betula pubescens (downy birch)
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