''Mesothen montana'' 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 ...

of the subfamily Arctiinae. It was described by Schaus in 1911. It is found in

Costa Rica Costa Rica (, ; ; literally "Rich Coast"), officially the Republic of Costa Rica ( es, República de Costa Rica), is a country in the Central American region of North America, bordered by Nicaragua to the north, the Caribbean Sea to the no ...

References

Natural History Museum Lepidoptera generic names catalog
Mesothen (moth) Moths described in 1911 {{Euchromiina-stub