''Digitivalva reticulella'' is a moth of the family

Acrolepiidae The Acrolepiidae are a family of moths known as false diamondback moths. In modern classifications, they are often treated as a subfamily (Acrolepiinae) of the family Glyphipterigidae. Caterpillars are typically spotted and 10 to 12 mm in l ...

found in most of

Europe Europe is a large peninsula conventionally considered a continent in its own right because of its great physical size and the weight of its history and traditions. Europe is also considered a subcontinent of Eurasia and it is located entirel ...

, except

Ireland Ireland ( ; ga, Éire ; Ulster Scots dialect, Ulster-Scots: ) is an island in the Atlantic Ocean, North Atlantic Ocean, in Northwestern Europe, north-western Europe. It is separated from Great Britain to its east by the North Channel (Grea ...

Great Britain Great Britain is an island in the North Atlantic Ocean off the northwest coast of continental Europe. With an area of , it is the largest of the British Isles, the largest European island and the ninth-largest island in the world. It i ...

, the

Netherlands ) , anthem = ( en, "William of Nassau") , image_map = , map_caption = , subdivision_type = Sovereign state , subdivision_name = Kingdom of the Netherlands , established_title = Before independence , established_date = Spanish Netherl ...

France France (), officially the French Republic ( ), is a country primarily located in Western Europe. It also comprises of overseas regions and territories in the Americas and the Atlantic, Pacific and Indian Oceans. Its metropolitan area ...

Portugal Portugal, officially the Portuguese Republic ( pt, República Portuguesa, links=yes ), is a country whose mainland is located on the Iberian Peninsula of Southwestern Europe, and whose territory also includes the Atlantic archipelagos of ...

Slovenia Slovenia ( ; sl, Slovenija ), officially the Republic of Slovenia (Slovene: , abbr.: ''RS''), is a country in Central Europe. It is bordered by Italy to the west, Austria to the north, Hungary to the northeast, Croatia to the southeast, an ...

, much of the Balkan Peninsula, and Lithuania. The

wingspan The wingspan (or just span) of a bird or an airplane is the distance from one wingtip to the other wingtip. For example, the Boeing 777–200 has a wingspan of , and a wandering albatross (''Diomedea exulans'') caught in 1965 had a wingspan o ...

is 11–13 mm. The larvae feed on ''

Filago Filago ( Bergamasque: ) is a ''comune'' (municipality) in the Province of Bergamo in the Italian region of Lombardy, located about northeast of Milan and about southwest of Bergamo. Filago borders the following municipalities: Bonate Sotto ...

'', '' Gnaphalium luteoalbum'', ''

Helichrysum arenarium ''Helichrysum arenarium'' is also known as dwarf everlast, and as immortelle. Description As a perennial plant, it grows to be an average of 0.3 m tall. The leaves are flat, the lower ones being elliptical in shape, while the upper ones are li ...

'', '' Logfia arvensis'', and '' Omalotheca sylvatica''. 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 plants. Young

larva A larva (; plural larvae ) is a distinct juvenile form many animals undergo before metamorphosis into adults. Animals with indirect development such as insects, amphibians, or cnidarians typically have a larval phase of their life cycle. ...

e make a narrow corridor which starts at base of the leaf. 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 deposited in a narrow line. The larva may vacate the mine and start elsewhere. Later mines or mine sections are much wider than the initial corridor. Here, most of the frass is ejected. Older larvae live freely among the flower heads. Larvae have a yellow body and a brown head. They can be found from March to April.

References

Acrolepiidae Moths described in 1796 Moths of Europe Moths of Asia {{Yponomeutoidea-stub