Arge nigripes - Black Rose Fusehorn

Arge nigripes appears widespread in England and Wales, with two records from northern Scotland. The species has a curved vein 3rm in the fore wing and a fore wing that is scarcely clearer at the apex than at the base, whereas in Arge enodis vein 3rm is straight and the fore wing is noticeably darker at the base than the apex.

Larvae feed on soft leaved roses. Ova are deposited into the margins of leaflets. Larvae emerge after approximately 10 days and feed gregariously in the early instars. 

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Size: 7 - 9mm

IUCN Status: Least Concern
GB Rarity Status: None

Distribution: England, Scotland, Wales

Flight period: April to July

Plant associations: Rosa spp. Roses (Benson, 1952).

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. D. 1992: Taxonomy of European Arge related to nigripes (Retzius) (Hymenoptera, Symphyta: Argidae). - Entomologische Berichte Luzern, Luzern 27: 135-140

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 Natural England, unpublished

Zombori, L. 1968: Superficial characters for separating the males of Arge berberidis Schrank, 1802 and A. nigripes Retzius, 1783 (Hym.). - Folia Entomologica Hungarica (Series Nova), Budapest 21(11): 153-160