I failed to see my target species but there was plenty of moth activity with 23 species recorded, the highlight being two male European Corn-borer Ostrinia nubilalis.
This migratory species is reported to be breeding in southern England in recent years, on waste ground with mugwort - just the habitat at Pengam. There are no reports of recent migratory examples on Atropos Flight Arrivals so I expect this species is now breeding in the area.
Other highlights were Yarrow Plume Gillmeria pallidactyla, White Plume Pterophorus pentadactyla, Broad-barred White, Sandy Carpet (common around White Campion), lekking Ghosts, Eudonia pallida, Agapeta zoegana and Eucosma campoliliana.
|Gillmeria pallidactyla on Bladder Campion|