Photo © Ilia Ustyantsev
Eupithecia egenaria, the pauper pug, is a moth of the family Geometridae. It is known from almost all of Europe, except Portugal, Ireland and the southern part of the Balkan Peninsula.
The wingspan is 21–24 mm. There is one generation per year with adults on wing from May to June.
The larvae feed on Tilia species. Larvae can be found from June to August. It overwinters as a pupa.
Source: Wikipedia
The primary larval foodplants are Large-leaved Lime (Tilia platyphyllos), Lime (Tilia x europaea) and Small-leaved Lime (Tilia cordata).