Sterictiphora geminata
One of two species in this genus present in Britain and Ireland. The abdomen is mostly black with a bronze sheen (in S. angelicae only the first two tergites are black) and thorax surface is dulled by microsculpture and puncturation.
Sterictiphora geminata larvae feed on roses and occasionally Mountain Ash. Other larvae of this genus feed from the edge of the leaf working inwards in a meandering zig-zag pattern similar to the Elm Zig-zag sawfly.
Status: Local
Distribution: England, Scotland, Wales, Ireland
Flight period: April to June
Plant associations: Rosa spp. (roses) (1) and Sorbus aucuparia (Mountain Ash) (2)
The National Biodiversity Network records are shown on the map below. (See terms and conditions)
- Sterictiphora geminata female Credit Martin Elkins
- Sterictiphora geminata female Credit Martin Elkins
- Sterictiphora geminata female Credit Martin Elkins
- Sterictiphora geminata Credit Ian Andrews
- Sterictiphora geminata Credit Ian Andrews
- Sterictiphora geminata Credit Jane Hewitt
References:
1. Benson, R.B., 1952. Handbooks for the Identification of British Insects. Hymenoptera, Symphyta, Vol 6, Section 2(a-c), Royal Entomological Society, London
2. Liston, A., 1995. Compendium of European Sawflies, Chalastos Forestry, Daibersdorf
3. 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
4. Lorenz, H. and Kraus M., 1957. Die Larvalsystematik der Blattwespen (Tenthredinoidea und Megalodontoidea). - Abhandlungen zur Larvalsystematik der Insekten No. 1. Berlin: Akadamie - Verlag