Aglaostigma fulvipes - White-sided Cleaver

Aglaostigma fulvipes is one of two species of Aglaostigma in Britain and Ireland. This species occurs later than aucupariae and is perhaps less frequent. Aglaostigma fulvipes is blackish with a red girdle but is marked with creamy-yellow laterally and ventrally and on the head (often extensively in males but much less so in females).

Larvae feed on bedstraws. Females lay the eggs into a stem and often cut the stem partially through just above the laying site. 

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Size: 7 - 9mm

GB IUCN Status: Least Concern
GB Rarity Status: None

Distribution: England, Scotland, Wales, Ireland

Flight period: April to June

Plant associations: Galium spp. incl. mollugo and verum (bedstraws incl. hedge and lady's

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, 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 Natural England, unpublished