Pristiphora erichsonii - Pristiphora erichsonii group
Males are extremely rare. The females have a red banded abdomen and extensively pale antennae. The female can also be determined by the characteristics of the saw and sawsheath.
Pristiphora erichsonii larval food plant is European larch and Japanese and American larch where introduced. Larvae can be sporadically abundant and destructive.
Size: 8.5 - 9.5mm
Distribution: England, Scotland, Wales, Ireland
Flight period: April to July
Plant associations: Larix decidua, Larix kaempferi and Larix laricina (European larch, Japanese larch and American 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