Monsoma
Monsoma is a small genus of only four species globally distributed across the palaearctic and nearctic. In Britain and Ireland they are represented by a single species.
The genus is characterised by having the second antennal segment (pedicel) longer than broad. The head has a post-genal carina and the hind tarsus is about equal in length to the hind tibia.
Those species where the larvae are known appear to feed on alders.
Species list:
Monsoma pulveratum (Retzius, 1783)
-
- Monsoma pulveratum female Credit Ian Andrews
-
- Monsoma pulveratum Credit John Grearson
-
- Monsoma pulveratum mid instar larvae Credit Andrew Green
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