140817 Riband Wave Idaea aversata Wingspan 25-30mm. A rather narrow-winged moth that rests with its wings spread flat. Adult occurs in two colour forms: one has yellowish wings marked with a broad, dark band; the other has yellowish wings marked with three concentric dark lines. Flies June-August. Larva feeds on herbaceous plants such as Dandelion and docks. Widespread and common.