Pristiphora glauca Benson, 1954

Pristiphora glauca - Pristiphora erichsonii group

This species is so similar to Pristiphora wesmaeli that adults cannot often be distinguished. Even the genitalia are hard to distinguish. The earlier emergence of adults and earlier larval feeding period is thought to be a more reliable method of distinguishing between the two species.

Pristiphora glauca larvae feed on European larch and Japanese and Dahurian larch where introduced.

Size: 6.0 - 7.5mm

Status: Local

Distribution: England, Wales

Flight period: March to May

Plant associations: Larix decidua, Larix kaempferi and Larix gmelinii (European larch, Japanese larch and Dahurian larch)

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, Vol. 59