Euura leucosticta (Hartig, 1837)

Euura leucosticta - oblita group (formerly Phyllocolpa erythropyga (Förster, 1854) and Phyllocolpa leucosticta (Hartig, 1837))

The species shows some variability in colour. See Liston et al (2017) for determination.

Euura leucosticta larvae feed on grey willow, eared willow and goat willow. The larvae cause a leaf fold, either spirally twisted or a marginal fold.

Size: Female: 3.8 - 5.5mm, male: 3.8 - 4.6mm

Status: Widespread

Distribution: England, Scotland, Wales, Ireland

Flight period: Uni- or bivoltine, May to August

Plant associations: Salix cinerea, Salix aurita and Salix caprea (grey willow, eared willow and goat willow )

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.D., Heibo, E., Prous, M., Vårdal, H., Nyman, T. and Vikberg, V., 2017. North European gall-inducing Euura sawflies (Hymenoptera, Tenthredinidae, Nematinae). Zootaxa, 4302(1), pp.1-115.

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