EUURA AMERINAE GROUP

Euura mucronata - Sallow Bud-galler

Nematus mucronatus Hartig, 1837
Euura gallae Newman, 1837
Euura gemmacinereae Kopelke, 2001
Cryptocampus gemmarum Brischke, 1883
Euura nigritarsis Cameron, 1885

North to northern Scotland. Benson suggested that this was "probably the commonest of British sawflies". However, it is small and not apparent to the casual observer. A number of other related species are described by Liston et al. (2017) which could possibly also be present in Britain, including E. laeta, subgemma and myrsinifoliae (Musgrove, 2024).

See Liston et al (2017) for determination of adults. The host plants are widespread species. Within this group, males of Euura mucronata, Euura testaceipes and Euura venusta are inseparable.

Euura mucronata larvae feed on buds of Eared Willow, Goat Willow and Common Sallow. This species causes the bud to be only slightly enlarged.

Jump to other group amerinae species

Size: Female: 2.3 - 4.4mm, male: approx. 3.2 - 4.0mm

GB IUCN status: Least Concern
GB rarity status: None

Distribution: England, Scotland, Wales, Ireland

Flight period: Univoltine

Plant associations: Salix aurita, Salix caprea and Salix cinerea (Eared Willow, Goat Willow and Common Sallow)

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

Musgrove, A.J. 2024. A review of the status of sawflies of Great Britain - Phase 3: The Tenthredinidae (subfamily Nematinae). Natural England, unpublished