Tenthredo moniliata - Bogbean Sawfly

Recorded locally throughout mainland Britain, as well as the Hebrides, but more local in the south-east where suitable bog habitat is now scarce (Musgrove, 2023).

One of the Tenthredo atra group (atra, ignobilis, moniliata) that may require further revision. In females the abdomen is marked red on tergites three to five and occasionally the extreme margins of two and six (female abdomen entirely black in atra). The stigma and apex of the costa in the fore wing is brown and the tegulae are red in both sexes.

Tenthredo moniliata larvae feed on bogbean.

Jump to other species of Tenthredo

Size: 11 - 12mm

GB IUCN Status: Least Concern
GB Rarity Status: None

Distribution: England, Scotland, Wales, Ireland

Flight period: May to August

Plant associations: Menyanthes trifoliata (bogbean)

References:

Benson, R.B., 1952. Handbooks for the Identification of British Insects. Hymenoptera, Symphyta, Vol 6, Section 2(a-c), Royal Entomological Society, London

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]

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

Liston, A.D., Knight, G., Heibo, E., Bland, K.P., Barstad, T.E., Blank, S.M., Boevé, J.L., Fiedler, C., Grearson, K.J., Halstead, A. and Jacobs, H.J., 2012. On Scottish sawflies, with results of the 14th International Sawfly Workshop, in the southern Highlands, 2010 (Hymenoptera, Symphyta). Beiträge zur Entomologie= Contributions to Entomology, 62(1), pp.1-68.

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 Natural England, unpublished