One of the smaller wholly black Macrophya species. This species has white marks on the sides of the apical margins of the tergites and the sternites. The stigma is pale-centred but with dark margins. The head is shining with sparse punctures.
Larvae are free feeding on crane's-bills.
Size: 6 - 8mm
Status: Local and rare(?)
Distribution: England, Scotland
Flight period: June
Plant associations: Geranium spp. (crane's-bills)
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