Pseudodineura mentiens
Femora entirely pale, or rarely with a small patch of infuscation.
In the female the pronotum is pale edged to almost completely pale. The abdomen is black but with a row of small pale spots dorsally along the midline. All the tarsal segments are pale. Males have an entirely black mesepisternum and the abdomen is black above and pale below.
Pseudodineura mentiens larvae mine the leaves of ornamental liver-leaf plants. Only leaves of the current year are mined.
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Size: Female: 4.5 - 6mm, male: 3.5 - 4.5mm
Status: Rare and introduced
Distribution: Scotland
Flight period: April to June
Plant associations: Hepatica transsilvanica (liver-leaf)
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
Liston, A., Prous, M. and Vardal, H., 2019. The West Palaearctic Pseudodineura and Endophytus species (Hymenoptera, Tenthredinidae). Zootaxa, 4614(3), pp.511-528.