Pristiphora laricis - Pristiphora laricis group
This species is extremely similar to Pristiphora friesei. Pristiphora laricis tends to be paler with a pale labrum and at least in the female the pronotum is mostly pale. The flagellum is 2.5 to 3.2 times as long as the width of the head.
Pristiphora laricis larvae feed on various larches.
Size: Assumed 4.0 - 6.5mm
Distribution: England, Scotland, Wales, Ireland
Flight period: April to August
Plant associations: Larix spp. (various larches)
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