Pristiphora albilabris (Boheman, 1852)

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.

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)

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