A black sawfly with pairs of white patches on tergites 2 to 5 (or 6). There is usually white on the labrum, pronotal margin and the hind margins of the tergites. Hind tibia pale at the base and apex. Antennal segment 8 is more than 3 times as long as broad. Front of clypeus deeply excised and with a small inner tooth.
Larvae feed on meadowsweet.
Size: 5 - 7mm
Distribution: England, Scotland, Wales, Ireland
Flight period: May to July
Plant associations: Filipendula ulmaria (meadowsweet)
The National Biodiversity Network records are shown on the map below. (See terms and conditions)
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
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.