Systematics :
Kingdom: Animalia (Animals)
Phylum: Arthropoda (Articulate animals)
Class: Insecta (Insects)
Order: Lepidoptera (Moths and butterflies)
Group: «Macro-heterocera» (Macro-moths)
Family: Geometridae (Geometrid moths)
Subfamily: Larentiinae
Genus: Operophtera
Species: Operophtera brumata (Winter Moth)
Other names: liten frostmåler, liten høstmåler
Norwegian name: Brun høstmåler
Host plants: Apple (Malus), Aspen and Poplar (Populus), Birch (Betula), Calluna, Carpinus, Common Hazel (Corylus avellana), Cotoneaster (Cotoneaster), Elm (Ulmus), Fraxinus, Hawthorn (Crataegus), Lime (Tilia), Maple (Acer), Oak (Quercus), Pear (Pyrus), Prunus, Rhamnus, Ribes, Rosa, Rubus, Sorbus, Willows, Sallows and Osiers (Salix)
Confusion species: Operophtera fagata (Northern Winter Moth)