Pristiphora insularis - Species not placed in a group
The abdomen is mostly dark above but with pale on the sternites and the hind femora are pale. Males are rare and are best determined by examination of the penis valves.
Pristiphora insularis larvae feed solitarily on rose plants and Japanese quince (where introduced).
Size: 4.5 - 5.5mm
Distribution: England, Scotland, Wales, Ireland
Flight period: May to June
Plant associations: Rosa spp. and Chaenomeles japonica (roses and Japanese quince)
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, 59