Stauronematus platycerus
The tarsal claws have a large inner tooth and a pronounced basal lobe so that they appear almost tridentate. They are black with the edge of the pronotum, tegulae and legs yellow, though the hind tibiae and tarsi have black apices.
Stauronematus platycerus larvae feed on poplars and occasionally willows. Larvae surround themselves with palisades of white dried saliva.
Jump to information on the genus Stauronematus
Size: 5 - 6.5mm
Status: Widespread
Distribution: England, Scotland, Wales
Flight period: May to June and July to September
Plant associations: Populus spp., and sometimes on Salix spp. (poplars and willows)
The National Biodiversity Network records are shown on the map below. (See terms and conditions)
- Stauronematus platycerus female Credit Andrew Green
- Stauronematus platycerus female Credit Andrew Green
- Stauronematus platycerus female Credit Andrew Green
- Stauronematus platycerus lancet Credit Andrew Green
- Stauronematus platycerus middle instar larva Credit Andrew Green
- Stauronematus platycerus middle instar larva Credit Andrew Green
- Stauronematus platycerus middle instar larva Credit Andrew Green
- Stauronematus platyceras larva Credit John Lamin
- Stauronematus platyceras larva Credit John Lamin
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
Prous, M., Liston, A., Kramp, K., Savina, H., Vårdal, H. and Taeger, A., 2019. The West Palaearctic genera of Nematinae (Hymenoptera, Tenthredinidae). ZooKeys, 875, p.63.