EUURA OBLITA GROUP

Euura destricta - Browed Leaf-galler

Pontania destricta MacGillivray, 1923
Euura plicaglauca Kopelke, 2007)
Phyllocolpa plicaglauca Kopelke, 2007
Phyllocolpa carinifrons (Benson, 1940)
Pontania carinifrons Benson, 1940
Euura carinifrons (Benson, 1940)

Noted from Staffordshire north to Orkney, although still with relatively few records (Musgrove, 2024).

Adults strongly resemble species in the Euura ischnocera group. See Liston et al (2017) for determination.

Euura destricta larvae feed on Bay Willow, Tea-leaved Willow and possibly Downy Willow. The larvae cause a leaf fold, either spirally twisted or a marginal fold.

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Size: Female: 4.1 - 4.9mm, male: 3.7 - 4.4mm

GB IUCN status: Near Threatened
GB rarity status: Nationally Rare

Distribution: England, Scotland, Ireland

Flight period: Uni- or bivoltine, June

Plant associations: Salix pentandra, Salix phylicifolia and possibly Salix lapponum (Bay Willow, Tea-leaved Willow and possibly Downy 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

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 Natural England, unpublished