''Cosmopterix coryphaea'' is a moth of the family Cosmopterigidae. It is known from 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 ...

and the Mediterranean region from Spain to Cyprus. The wingspan is 9–10 mm. The larvae feed on '' Phragmites australis''. 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 consists of a gallery, widening upwards into an elongate blotch. Most

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 piled in the older, lower section of the mine, but part of it is ejected. Pupation takes place inside of the mine.

References

coryphaea Moths of Africa Moths of Europe Taxa named by Thomas de Grey, 6th Baron Walsingham Moths described in 1908 {{Cosmopterix-stub