A black sawfly with pairs of white patches on tergites 2 to 6 (or 7). The labrum, hind margin of pronotum are white. The tegulae are also marked with white. The clypeus is strongly punctured and with a large central tooth. Antennae about 2.5 times the breadth of the head. Claws with a small subbasal tooth (check all legs). The stigma is brown. In the female, the apical tergites are red-brown.
Larvae are undescribed.
Size: 6 - 7mm
Flight period: May to June
Plant associations: Unknown
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.