''Digitivalva granitella'' 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 ...

. It is found in most of Continental Europe, except Fennoscandia, 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 ...

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 ...

, the Baltic region, the western part of the Balkan Peninsula and

Ukraine Ukraine ( uk, Україна, Ukraïna, ) is a country in Eastern Europe. It is the second-largest European country after Russia, which it borders to the east and northeast. Ukraine covers approximately . Prior to the ongoing Russian inv ...

. 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 11–14 mm. Adults are on wing from June to July and again from August to September in two generations per year. The adult overwinters and reappears the following spring. The larvae feed on ''

Inula conyza ''Pentanema squarrosum'', known as ploughman's-spikenard, is a species of plant in the family Asteraceae found in Europe, North Africa, and the Near East.

''. 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 a long and narrow corridor that starts at the midrib or at the leaf base. Later, it becomes a large, full depth blotch nearly without any

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 ...

. A larva may vacate the mine and restart elsewhere. A second mine has no initial corridor. Pupation takes place outside of the mine.bladmineerders.nl
/ref> Larvae can be found from April to May and again from June to July.

References

Acrolepiidae Moths described in 1833 Moths of Europe {{Yponomeutoidea-stub