Empria candidata
A black sawfly with pairs of white patches on tergites 2 to 5 (or to 7). Head with white inner and outer eye orbits. In the female, the clypeus, genae and mesopleura pale marked as are the apical margins of the tergites.
Larvae feed on birches.
Size: 6 - 8mm
Status: Local
Distribution: England, Scotland, Wales
Flight period: May to June
Plant associations: Betula spp. (birches)
The National Biodiversity Network records are shown on the map below. (See terms and conditions)
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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
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.