Pristiphora pseudocoactula (Lindqvist, 1952)

Pristiphora pseudocoactula - Pristiphora alpestris group

Very similar to Pristiphora alpestris but usually with a black clypeus, labrum hind femur ans sawsheath. The female is best determined by the characteristics of the saw. Males are best determined by the penis valve.

Larvae feed on downy birch and develop rapidly (10 to 15 days). May also feed on other birches and willows.

 

Size: 5.0 - 6.0mm

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