Pristiphora subopaca Lindqvist, 1955

Pristiphora subopaca- ruficornis group

This species cannot always be distinguished by morphology from Pristiphora confusa. Males are best determined by examination of the penis valves. Determination of the females, is best done by examination of the saw where the apical serrulae are arguably less protruding and longer than in confusa.

Pristiphora subopaca larvae feed on goat willow and tea-leaved willow.

Size: 4.5 - 5.5mm

Status: Data deficient

Distribution: England

Flight period: Assumed May to June

Plant associations: Salix caprea and Salix phylicifolia (goat willow and tea-leaved willow)

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

Prous, M., Vikberg, V., Liston, A. and Kramp, K., 2016. North-western Palaearctic species of the Pristiphora ruficornis group (Hymenoptera, Tenthredinidae). Journal of Hymenoptera Research, 51, p.1.