Recorded widely across much of mainland Britain (Musgrove, 2023).
A black sawfly with pairs of white patches on tergites 2 to 5 (or 6). The labrum, hind margin of pronotum are white. The tegulae are also marked with white. The clypeus is deeply incised in front to about half its length and with a small middle tooth (one fifth the length of the lateral teeth). Antennae about 2 to 2.5 times the breadth of the head. Claws with a large, thin inner tooth.
Empria excisa larvae feed on Rubus species and dropwort.
Size: 6 - 8mm
GB IUCN Status: Least Concern
GB Rarity Status: None
Distribution: England, Scotland, Wales, Ireland
Flight period: May to July
Plant associations: Rubus spp. and Filipendula vulgaris (raspberry,brambles, etc. and dropwort)
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 Natural England, unpublished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, Marko & Heidemaa, Mikk & Soon, Villu. (2011). Empria longicornis species group: Taxonomic revision with notes on phylogeny and ecology (Hymenoptera, Tenthredinidae). Zootaxa. 2756. 1-39. 10.11646/zootaxa.2756.1.1.