''Elachista deriventa'' is a moth of the family Elachistidae. It is found in southern Finland and

Sweden Sweden, formally the Kingdom of Sweden,The United Nations Group of Experts on Geographical Names states that the country's formal name is the Kingdom of SwedenUNGEGN World Geographical Names, Sweden./ref> is a Nordic country located on ...

. The wingspan is . Adults are on wing in June. The larvae feed on '' Calamagrostis arundinacea''. They mine the leaves of their host plant. The mine has the form of a pale yellowish, rather narrow, inconspicuous, ascending corridor in the distal half of the leaf. It runs along the leaf margin. 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 G ...

is deposited along the sides. Larvae can be found from September to October. They are pale yellowish.

References

deriventa Moths described in 2008 Moths of Europe {{Elachista-stub