Group erichsonii

Description follows Prous et al, 2017.  

Species within this group have the following characteristics. The sawsheath is long and narrow.  The penis valves have a rhomboid or trapezoid shaped paravalva. The pseudoceps are more or less rectangular and unmodified. The valvispina is small, slightly bent and asymmetric at the apex. Pristiphora erichsonii has a red banded abdomen whilst glauca and wesmaeli are yellow on the underside of the abdomen.  

The larvae feed on Larix spp. (larches).

Group erichsonii

Pristiphora erichsonii (Hartig, 1837)

Pristiphora glauca Benson, 1954

Pristiphora wesmaeli (Tischbein, 1853)

 

 

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