It was with an uncertain weather forecast that two all-night surveys were conducted in different areas of Bwlch Corog on the change of seasons.
On Friday, the survey was located in a previously unrecorded area below the access track to the main site, in a narrow, mixed wooded gorge.
Three Skinner's 15w synergetic and a Skinner's 125wMV were set up along a linear path running down to the stream at the bottom. Being a very chilly night, they were probably better placed here, the tree canopy providing some protection from the cold.
38 macro species were recorded. Typical to the time of year, Autumnal Rustic and Sallow sp. were present, along with Satin Beauty and Dark Marbled Carpet. Amongst the seven micro species recorded were Acleris varieagana and Epinotia ramella.
51 Angle Shades were noted, calmly feeding around in the dark on Common Rush flowers. Locally common Haworth's Minor, Pine Grey Carpet and Neglected rustic were recorded from the traps,
along with a selection of forest edge/grassland species. 32 macro and oddly, only one micro species, Eudonia lacustrata were recorded.
Phil McGregor.