The commonest moth in the trap last night was Silver Y. This is an immigrant which appears in varying numbers, though it is usually quite common and apparently this year is a good one for it. The spring immigrants produce a brood, so this moth is in fact likely to be of local origin. In fact, on the same date Graham trapped his first Lunar Underwing, he also discovered a Silver Y pupa. Any well-stocked garden may have Silver Ys nectaring at dusk at the moment, and the metallic Y shaped mark is the distinctive marker on this beautiful moth.