Euura saliciscinereae - Dark-leaf Pea-galler
viminalis
group (formerly Pontania saliciscinereae)

See Liston et al (2017) for determination of adults. The host plant is an upland species. Within this group, males of Euura aquilonis, crassipes, collectanea, myrsiniticola, pedunculi, saliciscinereae, samolad, viminalis, herbaceae and arbusculae are inseparable.

Euura saliciscinereae larvae feed on Dark-leaved Willow. The gall is in contact with the midrib, projecting only below the leaf-blade. The pea shaped gall is at most weakly hairy, usually without warts and green often flushed with red.

Jump to other group viminalis species

Size: Female: 2.8 - 5.4mm, male: 3.0 - 5.3mm

Status: Rare

Distribution: England, Scotland

Flight period: Univoltine

Plant associations: Salix myrsinifolia (Dark-leaved 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