Pristiphora friesei - Pristiphora laricis group
This species is extremely similar to Pristiphora laricis. This species tends to be darker with a black or dark brown labrum and at least in the female the pronotum is mostly black. The flagellum is 3.5 to 4.0 times as long as the width of the head.
Pristiphora friesei larval food plant is European larch.
Size: 4.0 - 6.5mm
Status: Data deficient
Distribution: Scotland, Ireland
Flight period: Assumed May to July
Plant associations: Larix decidua (European larch)
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