Athalia cornubiae
All the tibia in this species are ringed apically in black and the thorax has lateral and ventral sides orangy. The prescutum and scutellum are black. In females the hypogidium lacks lateral lobes but is strongly incised each side of the middle. Males cannot be separated from Athalia liberta males.
Larvae possibly feed on stonecrops.
Size: 5-7mm
Status: Rare
Distribution: England
Flight period: May to September
Plant associations: Sedum spp? (stonecrops)
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
Palmer, D. and Palmer, J.P. 2015. Keys of species of Athalia in France and Italy, Flickr. [https://www.flickr.com/photos/d-jp-balmer/7996272718/in/photolist-9Ztf2g-dbAZi1-d8W2FW-9Zdz6n/] Accessed 16Apr2019