Geometrid moth caterpillar

Geometrid moth caterpillar

Observation - Geometrid moth caterpillar - UK and Ireland. Description: found indoors. Put onto a mixed variety of leaves for photograph and although it chose to rest on a birch leaf I do not know what its food plant is (the leaf was already partly eaten by something else). Its length is about 2 cm.

found indoors. Put onto a mixed variety of leaves for photograph and although it chose to rest on a birch leaf I do not know what its food plant is (the leaf was already partly eaten by something else). Its length is about 2 cm.