Empria parvula - Small Dawn-treader

Recorded only sparingly but across much of mainland Britain, and with the majority of records being from recent decades (Musgrove, 2023).

Black with the margin of the pronotum pale marked. Wings hyaline. Paired pale patches on tergites 2 to 3 (or 5). Inner hind tibial spur at most one-third the length of the basitarsus.

Empria parvula larvae feed on Wood Avens and Water Avens.

Jump to other Empria species

Size: Approx. 4.5 - 5.5mm

GB IUCN Status: Least Concern
GB Rarity Status: None

Distribution: England, Scotland, Wales

Flight period: May to June

Plant associations: Wood Avens (Geum urbanum) and Water Avens (Geum rivale)

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

Musgrove, A.J. 2023. A review of the status of sawflies of Great Britain - Phase 2: The Athaliidae and the Tenthredinidae (excluding Nematinae). Natural England, unpublished

Prous, M. 2012: Taxonomy and phylogeny of the sawfly genus Empria (Hymenoptera, Tenthredinidae). - Dissertationes Biologicae Universitatis Tartuensis, Tartu 222: 192 pp.