Neurotoma mandibularis
One of two species of Neurotoma in Britain, neither of which occurs in Ireland. This species broadly speaking black with a metallic blue shine and is less yellow marked with yellow confined to the mandibles and the outer face of the hind tibia. The wings are uniformly hyaline and lack the smokey band of the other species Neurotoma saltuum. The temples are not carinate behind.
Larvae feed in pairs in between two oak leaves which are spun together to form a tent.
Size: 7 - 10mm
Status: Rare
Distribution: England
Flight period: May to June
Plant associations: Quercus robur (English or pendunculate oak)
The National Biodiversity Network records are shown on the map below. (See terms and conditions)
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- Neurotoma mandibularis larva (Netherlands specimen) Credit Leo Blommers
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
Viitasaari, M. ed., 2002. Sawflies (Hymenoptera, Symphyta), I: a review of the suborder, the Western Palaearctic taxa of Xyeloidea and Pamphilioidea. Tremex Press.