''Perittia mastodon'' is a

moth Moths are a group of insects that includes all members of the order Lepidoptera that are not Butterfly, butterflies. They were previously classified as suborder Heterocera, but the group is Paraphyly, paraphyletic with respect to butterflies (s ...

in the family

Elachistidae The Elachistidae (grass-miner moths) are a family of small moths in the Taxonomic rank, superfamily Gelechioidea. Some authors lumpers and splitters, lump about 3,300 species in eight subfamilies here, but this arrangement almost certainly result ...

. It was described by Lauri Kaila in 2000. It is found in

Argentina Argentina, officially the Argentine Republic, is a country in the southern half of South America. It covers an area of , making it the List of South American countries by area, second-largest country in South America after Brazil, the fourt ...

., 2000: A review of the South American ''Elachistidae'' s. str. (Lepidoptera: Gelechioidea), with descriptions of 15 new species. ''Steenstrupia'' 25 (2): 159-193.

References

Moths described in 2000 Elachistidae Moths of South America {{Elachistidae-stub