Pseudodineura enslini - Globe-flower Sawfly

Scotland, Northern England and Snowdonia (Benson 1934a, Hewitt 2010). Almost all records are within the last 30 years, probably as a result of an increase in awareness and interest of leaf-mining insects. The foodplant itself is declining, although remains widespread in northern Britain and Wales (Musgrove, 2024).

Femora with at least the base completely black on one or both surfaces. In the female the upper portion of mesepisternum is shiny without sculpture between setae. The pronotum is black and sometimes edged with pale. Abdomen black. Males are best determined by the shape of the penis valve.

Pseudodineura enslini larvae mine the leaves and petioles of globe-flower.

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Size: 3 - 4mm

GB IUCN status: Least Concern
GB rarity status: None

Distribution: England, Scotland, Wales

Flight period: May to June

Plant associations: Trollius europaeus (globe-flower)

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, 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

Liston, A., Prous, M. and Vardal, H., 2019. The West Palaearctic Pseudodineura and Endophytus species (Hymenoptera, Tenthredinidae). Zootaxa, 4614(3), pp.511-528.

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 Natural England, unpublished