Pristiphora nigella - Pristiphora nigella group
This species is similar to Pristiphora amphibola but female amphibola are almost completely black and with a long sawsheath than nigella. Males can be distinguished by the penis valves.
Larvae feed on Norway spruce.
Size: 4.5 - 5.00mm
Distribution: England, Scotland, Ireland
Flight period: Assumed April to May
Plant associations: Picea abies (Norway spruce)
The National Biodiversity Network records are shown on the map below. (See terms and conditions)
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.D., 1981. Pristiphora (Lygaeophora) lanifica (Zaddach, 1882) new to Britain (Hymenoptera: Tenthredinidae). Entomologist's gazette.
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