Rusty Dot Pearl Udea ferrugalis
Wingspan 18-22 mm.
The ferruginous ground colour and blackish markings on the forewing help to identify this species. Like several of its congeners, it shows distinctively whitish legs.
In Britain this moth is mainly a migrant species, but can occur at almost any time of the year, sometimes in large influxes with other migrants.
The adult flies at night and comes to light.