Hoplocampa ariae Benson, 1933

Hoplocampa ariae

The abdomen is largely pale but the basal tergites may be marked with black. Wings are yellowish (creamy white in the similar Hoplocampa alpina). Sunken parts of the mesonotum are are mainly pale in the female but more or less black in the male. Males can be determined by the penis valves.
Larvae feed on the fruits of broad-leaved rowans.

Size: 4.5 to 6.5mm

Status: Local

Distribution: England, Ireland

Flight period: May to June

Plant associations: Sorbus aria and possibly other Sorbus spp. (rowans)

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