Nemophora cupriacella

According to The Moths of Glamorgan, the only reference to Nemophora cupriacella occurring in the county comes from Maitland Emmet's Vice County maps, as reproduced in MBGBI vol I, and there are no further details on the scans of these maps now available online (here). So it was rather a surprise to find a swarm of these lovely little moths on the bank of the Clydach Reservoir whilst on SEWBReC's Bioblitz at Darwonno yesterday.