Photo © Andy Mitchell
Poecilocampa populi, the December moth, is a moth of the family Lasiocampidae.
The wingspan is 35–45 millimetres (1.4–1.8 in). The moth flies from October to December depending on the location.
The larvae feed on various deciduous trees, such as oak, poplar and lime (Tilia).
It is considered a pest insect, as the larvae will eat apple and plum trees.
It is found in Europe, Northern Asia and Japan.
Source: Wikipedia
The primary larval foodplants are Alder (Alnus glutinosa), Ash (Fraxinus excelsior), Aspen (Populus tremula), birches (Betula spp.), Blackthorn (Prunus spinosa), elms (Ulmus spp.), Hawthorn (Crataegus monogyna), limes (Tilia spp.), oaks (Quercus spp.), poplars (Populus spp.) and willows (Salix spp.).