Recorded locally in England and Wales north to Yorkshire (Musgrove, 2023).
One of the two Ardis species which are characterised by large punctures around the outer eye margins. Entirely black, but the knees and front of fore and middle tibia and tarsi brown.
Eggs are positioned near the mid-vein of folded terminal leaves on a growing tip of roses, especially rambling roses. Emerging larvae intially feed on the leaves before burrowing into the shoot. The presence of a larva is indicated by a small hole with frass deposits. The terminal leaves soon wilt and die. The eonymph exits the stem and pupates in the ground.
Size: 5.5 - 6.5mm
GB IUCN Status: Least Concern
GB Rarity Status: None
Distribution: England, Wales
Flight period: May to June
Plant associations: Rosa spp. (roses)
Benson, R.B., 1952. Handbooks for the Identification of British Insects. Hymenoptera, Symphyta, Vol 6, Section 2(a-c), Royal Entomological Society, London
Evenhuis, H. H. 1973: Investigations on the rose tip infesting sawfly Ardis brunniventris (Hymenoptera, Tenthredinidae). - Mededelingen fakulteit Landbouwwetens., Gent 38: 1127-1131
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. 2023. A review of the status of sawflies of Great Britain - Phase 2: The Athaliidae and the Tenthredinidae (excluding Nematinae). Natural England, unpublished