Pristiphora saxesenii - Pristiphora abietina group
The stigma is usually dark. Claws have a small subapical tooth. In the female, the sawsheath is short and tapers from base to apex when viewed from above. Males should be determined by the penis valve.
Larvae feed on norway spruce and develop rapidly (10 to 15 days).
Size: Probably 6.0 - 7.5mm
Status: Data deficient
Distribution: England, Scotland
Flight period: May to July
Plant associations: Picea abies (norway spruce)
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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