Athalia bicolor - Belted Tigress

Mostly recorded from Yorkshire southwards. Sporadic additional records north to central Scotland (Musgrove, 2023).

Top of the head and the thorax (except tegulae and hind edges of pronotum) entirely black. Athalia bicolor has the first tergite also black. Only the hind legs have black rings on the apices of the tibiae and tarsi, the other legs being entirely yellow.

Larvae are unknown but thought to be associated with buttercups.

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Size: 5-7mm

GB IUCN Status: Least concern
GB Rarity Status: None

Distribution: England, Scotland, Wales

Flight period: May to August

Plant associations: Larvae are unrecorded but thought to feed on Ranunculus spp. (buttercups)

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 Natural England, unpublished