Rare hoverfly @ Cwm Drysiog

Photographed this rare hoverfly at Cwm Drysiog, Maesteg on 7th August 2015 - "Eupeodes lapponicus". It took a while for experts to get back to me with confirmation. From the NBN Gateway map you can see that there has been only a few records in Britain. Although not fully up to date, it does show how rare this species is in Britain. There is a good chance that it is a Glamorgan first. The diagnostic feature is the strong dip in the R4+5 vein on the wing