The Inchworm (Geometridae) are a family of moths which includes about 35,000 species, of which about a thousand in Europe.
Their scientific name is derived from the greek γη geo γαια or "earth" and Metron μέτρων "measure", in reference to the way in which their larvae
(They walk with a compass movement,) seem to "measure the earth"
Butterflies are medium or small, normally resting with wings wide, sometimes atrophic or absent in females.
They have spread to every continent and prefer hardwood forest, more or less sparse.
Almost all activities are mainly crepuscular or nocturnal, but some species are diurnal.
Sometimes parasites are very harmful especially of deciduous trees and shrubs.