Nesoselandria morio (Fabricius, 1781)

Nesoselandria morio

Similar in appearance to the much more frequently encountered Aneugmenus padi. This species is smaller at only around 5mm and the legs are a deeper yellow to orange colour (bright yellow in padi). The remainder of the insect is black. The head is shiny and lacks sculpture or puncturation.
Although the eggs are often laid on scarlet pimpernel, speedwells, forget-me-nots, etc. Vikberg reports that the larvae feed on mosses in Finland.

Size: approx. 4 - 5mm

Status: Widespread

Distribution: England, Scotland, Wales, Ireland

Flight period: May to September

Plant associations: Mosses

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

Vikberg, V & Nuorteva, M. (1997) On the rearing of Nesoselandria morio(Fabricius) and Birka cinereipes(Klug) (Hymenoptera, Tenthredinidae), with descriptions of their larvae. Entomologica Fennica. 8. 27-38.