Stegania cararia

Stegania cararia, the ringed border, is a species of moth of the family Geometridae.

Distribution
It is found from France east to Russia. It is an immigrant in Great Britain.

Biology
The habitat consists of damp forested areas. The larvae feed on poplar (Populus species), including aspen (Populus tremula). Larvae can be found from July to October.

Description
The wingspan is 20–23 mm. Adults are on wing from May to mid-July in one generation per year.