This species has a scattering of records from southern England to the Highlands. However, the species was not recognised as British until 2006 and prior to this records would have been identified as Claremontia tenuicornis. Therefore, measures of change cannot be considered reliable until a longer timeframe has elapsed. Previously this taxon has been regarded as a synonym of Claremontia tenuicornis as was Claremontia uncta. The three species can be identified by the key in Liston et al, 2006.
In this species the mesopleura are continuously pubescent. The tegulae are more or less yellow and the pronotal angles are margined with yellow.
Larval food plant not known but associated with meadowsweet and lady's-mantles.
Size: Approx. 4 - 6mm
GB IUCN Status: Least concern
GB Rarity Status: None
Distribution: England, Scotland, Wales, Ireland
Flight period: Probably April to August
Plant associations: Filipendula ulmaria and Alchemilla spp. (meadowsweet and lady's-mantles)
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
Liston, A.D., Taeger, A. and Blank, S.M., 2006. Comments on European Sawflies (Hymenoptera: Symphyta). Recent Sawfly Research: Synthesis and Prospects. Goecke & Evers, Keltern, pp.246.
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 Natural England, unpublished