''Eupithecia elquiensis'' is a

moth Moths are a paraphyletic group of insects that includes all members of the order Lepidoptera that are not butterflies, with moths making up the vast majority of the order. There are thought to be approximately 160,000 species of moth, many of w ...

in the family Geometridae. It is found the Region of Coquimbo (El Qui Province) in

Chile Chile, officially the Republic of Chile, is a country in the western part of South America. It is the southernmost country in the world, and the closest to Antarctica, occupying a long and narrow strip of land between the Andes to the east a ...

., 1991: The ''Eupithecia'' (Lepidoptera, Geometridae) of Chile. 2. ''American Museum Novitates'' 3020: 1-14. Full article

The habitat consists of the Coquimban Desert Biotic Province. The length of the forewings is about 9.5 mm for females. Adults have been recorded on wing in October.

Etymology

The specific name is based on the type locality.

References

Moths described in 1991 elquiensis Moths of South America Endemic fauna of Chile {{Eupithecia-stub