Kaliofenusa altenhoferi
Males are rare. Colour and sawsheath appear to be unreliable for identification. In this species the frons has lateral walls that appear to be deeply indented and lateral foveae in short, deep, ellipsoid furrows that stop short of the frontal furrow.
Eggs are deposited in the leaf margin of field and English elm from where the larvae forms a blister mine that can eventually fill the entire leaf blade. The Kaliofenusa species appear to prefer suckers and regrowth.
Size: 3.5 - 4.5mm
Status: unknown
Distribution: England, Scotland
Flight period: Bivoltine? April to June and August.
Plant associations: Ulmus minor and Ulmus procera (field elm and English elm)
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. D. 1994. Kaliofenusa carpinifoliae LIston (Hymenoptera: Tenthredinidae), a newly recognised leafminer on field elms in Britain. British Journal of Entomology and Natural History, vol.7 (1), pp15-18.
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