EUURA ISCHNOCERA GROUP

Euura prussica - Prussian Leaf-galler

Nematus prussicus Zaddach, 1883
Phyllocolpa prussica (Zaddach, 1883)

Recently recognised as a distinct species, the only confirmed British record being one from Perthshire in 2010 (Liston et al. 2012). However, the foodplants are very widespread and the gall would seem to be very similar to that of Euura leucosticta, hence it is seems more than possible that this species is widely overlooked (Musgrove, 2024).

See Liston et al (2017) for determination.

Euura prussica larvae feed on Grey Willow and possibly Goat Willow which are widespread species.

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Size: Female: 2.8 - 4.3mm, male: 3.3 - 4.4mm

GB IUCN status: Data Deficient
GB rarity status: Unclear

Distribution: Scotland

Flight period: Uni- or bivoltine

Plant associations: Salix cinerea and possibly Salix caprea (Grey Willow and possibly Goat Willow)

The National Biodiversity Network records are shown on the map below. (See terms and conditions)

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 Natural England, unpublished