Macrophya albipuncta
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)
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