Llangynwyd last night. 21:30 - 01:30.

                            Least black arches

                           Semioscopis steinkellneriana, new for the valley

                            Eriocrania subpurpurella/ sangii?  Wing colour and
                            antennae length suggest E. sangii. Dissection needed?
                            87 moths of 29 species inc one Diamond back moth.
                            A very warm night, still 18 degrees at 1;30am!