Fenusella hortulana
Antennae with 10 segments, or with a very long ninth more than 1.5 times as long as the eighth. Pronotum yellow and mesopleura marked with yellow. Labrum, clypeus and base of mandibles more or less white. The abdomen is piceous with pale apical margins on tergites and sternites. In the female the hind femur is yellow ventrally.
Fenusella hortulana larvae feed in mines in the leaves of black poplar.
Size: Approx. 4 - 6mm
Status: Rare
Distribution: England, Ireland
Flight period: May to June
Plant associations: Populus nigra (black poplar)
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