Tenthredo amoena Gravenhorst, 1807

Tenthredo amoena

A black species richly marked with yellow and with a shiny, sparsley punctured head around the frons and inner orbits. Similar to Tenthredo distinguenda but in amoena the first antennal segment is entirely yellow and the tegulae are only yellow on the front margin. In the female this is the only Tenthredo species where the fifth tergite is yellow at the base and black at the apex.

Size: 9 - 11mm

Status: Local

Distribution: England, Wales

Flight period: June to August

Plant associations: Hypericum perforatum, Hypericum maculatum (perforate and imperforate St John's-wort)

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

Fekete, K. (2018) Beginner’s guide to identifying British Tenthredo, Natural History Museum, London. http://www.nhm.ac.uk/content/dam/nhmwww/take-part/identification-trainers/sawflies-guide-id-trainees.pdf [Accessed 26Apr2019]