Photo © Carlos Franquinho
Stegania trimaculata, the Dorset cream wave, is a moth of the family Geometridae. It is found throughout Europe, mainly in Southern Europe, but its range has expanded in recent years.
The wingspan is 26–28 mm. The length of the forewings is 10–13 mm. The moth flies in two generations from May to September .
The larvae feed on various species of poplar.
Source: Wikipedia
Description to be completed.