This 5mm micro looked like it was in the middle of a yoga routine when we barged in with the camera, trying to tame the lens to focus. The precarious resting position has been achieved by standing on two legs, with its head lowered and abdomen raised. Like other species in the genus, the Argyresthia retinella has an oily, pearly gleam. The ground color is a silvery white, dabbed occasionally with tiny black spots. A shaky longitudinal streak runs from the base to just beyond one-half, ending in a blob. Another diffused dark patch starts from the apex and cuts off at around the tornus. Like the Cherry Bark Tortrix from our last post, this moth also flies in the afternoon sun.
Its name, ‘arguros’ means silver and ‘esthēs’, a dress, both account for the color of the forewing. Rete, a net, describes its netted pattern. On ‘Yorkshire Moths Flying Tonight’ it is classified as ‘scarce and local’, so once again, we are in luck!
Both species are new to Shandy Hall gardens and the total is now 385.
Post: Tung Chau (UPenn)