Arge gracilicornis - Raspberry Fusehorn
Arge gracilicornis is one of the smaller black species and it is widely distributed as far north as Inverness. The apical margins of the wings are finely ciliate. Cell 2RS of the forewing is wider at the top than at the bottom due to vein 3rm being sinuate.
Larvae feed on raspberry and brambles.
Size: 5 - 7mm.
IUCN Status: Least Concern
GB Rarity Status: None
Distribution: England, Scotland, Wales, Ireland
Flight period: Uni- or bivoltine, May to June and sometimes July to September
Plant associations: Rubus spp.. Brambles, Rubus fruticosus agg., (Liston, 1995) and especially raspberry, Rubus idaeus (Benson, 1952).
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., 1995. Compendium of European Sawflies, Chalastos Forestry, Daibersdorf
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
Musgrove, A.J. 2022. A review of the status of sawflies of Great Britain - Phase 1: families other than Tenthredinidae. Natural England, unpublished