Pristiphora biscalis (Förster, 1854)

Pristiphora biscalis - Species not placed in a group

Females of this species is similar to Pristiphora maesta. Pristiphora biscalis species has black cerci and at least a partly pale clypeus. Males are best determined by examination of the penis valves.

Larvae feed on blackthorn.

Size: 4.5 - 5.5mm

Status: Local

Distribution: England, Wales, Ireland

Flight period: April to June

Plant associations: Prunus spinosa (blackthorn)

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