Neurotoma mandibularis (Zaddach, 1866)

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)

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.