Pristiphora melanocarpa - ruficornis group
This species is similar to Pristiphora ruficornis but melanocarpa has darker antennae. Males are best determined by examination of the penis valves. Determination of the females, is best done by examination of the saw which lacks any setae on the six apical segments.
Pristiphora melanocarpa larvae feed on silver birch, downy birch and dwarf birch.
Size: 4.0 - 5.5mm
Distribution: England, Scotland, Wales, Ireland
Flight period: April to June
Plant associations: Betula pendula, Betula pubescens and Betula nana (silver birch, downy birch and dwarf birch)
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