Pristiphora insularis Rohwer, 1910

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.

Larvae feed solitarily on rose plants and Japanese quince (where introduced).

Size: 4.5 - 5.5mm

Status: Widespread

Distribution: England, Scotland, Wales, Ireland

Flight period: May to June

Plant associations: Rosa spp. and Chaenomeles japonica (roses and Japanese quince)

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, 59