High Quality Content by WIKIPEDIA articles! Xandrames (genus) is a genus of moth in the family Geometridae. The geometer moths or Geometridae are a family of the order Lepidoptera. A very large family, it has around 26,000 species of moths described (over 300 of which occur in the British Isles, and over 1,200 species indigenous to North America). A well-known member is the Peppered Moth, Biston betularia, which has been subject of numerous studies in population genetics. Several other geometer moths are notorious pests. What does and does not belong to each family is determined by a taxonomist. Similarly for the question if a particular family should be recognized at all. Often there is no exact agreement, with different taxonomists each taking a different position.

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