Euura leucotrocha (Hartig, 1837)

Euura leucotrocha

The female has the metanotum and at the very least the two basal tergites coloured black (often the entire upper surface). The head is black with usually the upper orbits marked with yellow. The ovipositor is barely as long as the two basal sections of the hind tarsae combined.
The male has the inner orbits mostly pale and the hind femora almost entirely pale. The mesopleura are black. The abdomen is at least partially pale underneath and almost entirely black above.

Larvae feed on currants and especially gooseberry but are seldom common.

 

Size: Female: 6.0 - 7.0mm, male: 6.0mm.

Status: Widespread

Distribution: England, Scotland, Wales, Ireland

Flight period: Univoltine, April to May

Plant associations: Ribes spp., especially Ribes uva-crispa (currants, especially gooseberry)

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., Liston, A., Kramp, K., Savina, H., Vårdal, H. and Taeger, A., 2019. The West Palaearctic genera of Nematinae (Hymenoptera, Tenthredinidae). ZooKeys, 875, p.63-127