''Cosmopterix attenuatella'' is a moth of the family Cosmopterigidae described by Francis Walker in 1864. It is widely distributed in the tropics and subtropics of both the Old and New World, including the United States, Bermuda, the

Cayman Islands The Cayman Islands () is a self-governing British Overseas Territory—the largest by population in the western Caribbean Sea. The territory comprises the three islands of Grand Cayman, Cayman Brac and Little Cayman, which are located to the ...

, Virgin Islands,

Dominica Dominica ( or ; Kalinago: ; french: Dominique; Dominican Creole French: ), officially the Commonwealth of Dominica, is an island country in the Caribbean. The capital, Roseau, is located on the western side of the island. It is geographically ...

, Jamaica, Puerto Rico, Trinidad and Tobago,

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 ...

, Brazil, Ecuador, Peru, Argentina, the

Canary Islands The Canary Islands (; es, Canarias, ), also known informally as the Canaries, are a Spanish autonomous community and archipelago in the Atlantic Ocean, in Macaronesia. At their closest point to the African mainland, they are west of Morocc ...

Madeira ) , anthem = ( en, "Anthem of the Autonomous Region of Madeira") , song_type = Regional anthem , image_map=EU-Portugal_with_Madeira_circled.svg , map_alt=Location of Madeira , map_caption=Location of Madeira , subdivision_type=Sovereign st ...

, the Galápagos Islands, Cook Islands, Taiwan,

Australia Australia, officially the Commonwealth of Australia, is a Sovereign state, sovereign country comprising the mainland of the Australia (continent), Australian continent, the island of Tasmania, and numerous List of islands of Australia, sma ...

, New Zealand, Madagascar, Seychelles, Mauritius and

Saint Helena Saint Helena () is a British overseas territory located in the South Atlantic Ocean. It is a remote volcanic tropical island west of the coast of south-western Africa, and east of Rio de Janeiro in South America. It is one of three constitu ...

. The wingspan is about 9 mm. There are probably two generations per year in the south of the temperate zone and more overlapping generations in the tropics, because here adults can be found throughout the year. The larvae feed on

Poaceae Poaceae () or Gramineae () is a large and nearly ubiquitous family of monocotyledonous flowering plants commonly known as grasses. It includes the cereal grasses, bamboos and the grasses of natural grassland and species cultivated in lawns an ...

('' Melinus minutiflora''), '' Cyperus rotundus'' and '' Scirpus'' species. They

mine Mine, mines, miners or mining may refer to: Extraction or digging * Miner, a person engaged in mining or digging *Mining, extraction of mineral resources from the ground through a mine Grammar *Mine, a first-person English possessive pronoun ...

the leaves of their host plant. The mine has the form of a blotch that descends from close to the tip of the leaf, occupying the entire width of the leaf. Older parts are brown and shrivelled, while youngest parts are yellow. The

frass Frass refers loosely to the more or less solid excreta of insects, and to certain other related matter. Definition and etymology ''Frass'' is an informal term and accordingly it is variously used and variously defined. It is derived from the ...

is black. Pupation takes place in an elongate white cocoon within the mine.

References

attenuatella Moths of Madagascar Moths of Japan Moths of Mauritius Moths of Réunion Moths of New Zealand Moths of Africa Moths of Seychelles {{Cosmopterix-stub