Abia sericea (Linnaeus, 1767)

Abia sericea

Similar to Abia candens and more common. The antennae in both sexes are usually all yellow and never with segment three bicolorous. In Abia sericea the antennae are dark on the apical and basal segments with middle segments yellow.
Larvae feed on scabious. Abia sericea larvae have a row of black dots on the dorsal midline.

Size: approx. 10mm

Status: Local

Distribution: England, Scotland, Wales, Ireland

Flight period: May to August

Plant associations: Succisa pratensis and probably Knautia arvensis (devil's bit scabious, field scabious)

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

Hackston, M (2014). Family Cimbicidae: Key to the British species. https://sites.google.com/site/mikesinsectkeyshymenoptera/Home/hymenoptera/symphyta/superfamily-tenthredinoidea/family-cimbicidae [Accessed 25Apr2019]