''Agonopterix senicionella'' is a

moth Moths are a group of insects that includes all members of the order Lepidoptera that are not Butterfly, butterflies. They were previously classified as suborder Heterocera, but the group is Paraphyly, paraphyletic with respect to butterflies (s ...

in the family

Depressariidae Depressariidae is a family of moths. It was formerly treated as a subfamily of Gelechiidae, but is now recognised as a separate family, comprising about 2,300 species worldwide. Subfamilies Depressariidae consists of ten subfamilies: * Acriinae ...

. It was described by

August Busck Augustus Busck (February 18, 1870 in Randers, DenmarkBUSCK, Augustus
in '' Kentucky Kentucky (, ), officially the Commonwealth of Kentucky, is a landlocked U.S. state, state in the Southeastern United States, Southeastern region of the United States. It borders Illinois, Indiana, and Ohio to the north, West Virginia to the ...

Michigan Michigan ( ) is a peninsular U.S. state, state in the Great Lakes region, Great Lakes region of the Upper Midwest, Upper Midwestern United States. It shares water and land boundaries with Minnesota to the northwest, Wisconsin to the west, ...

Ohio Ohio ( ) is a U.S. state, state in the Midwestern United States, Midwestern region of the United States. It borders Lake Erie to the north, Pennsylvania to the east, West Virginia to the southeast, Kentucky to the southwest, Indiana to the ...

Virginia Virginia, officially the Commonwealth of Virginia, is a U.S. state, state in the Southeastern United States, Southeastern and Mid-Atlantic (United States), Mid-Atlantic regions of the United States between the East Coast of the United States ...

and

West Virginia West Virginia is a mountainous U.S. state, state in the Southern United States, Southern and Mid-Atlantic (United States), Mid-Atlantic regions of the United States.The United States Census Bureau, Census Bureau and the Association of American ...

. The

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

is 18–22 mm. The forewings are dark ochrous gray, overlaid and suffused with brownish ochrous. There is a light basal patch, suffused on the costa with fuscous, containing a blackish-fuscous spot in the fold and bordered outwardly by a fading fuscous shade. There are two black discal dots at the basal third in the cell and a black discal dot at the end of the cell, preceded by an indistinct fuscous shade. The termen and costa are marked with ill-defined fuscous spots. The hindwings are grayish fuscous, but darker apically. The larvae feed on ''

Packera aurea ''Packera aurea'' (formerly ''Senecio aureus''), commonly known as golden ragwort or simply ragwort, is a perennial flower in the family Asteraceae. It is also known as golden groundsel, squaw weed, life root, golden ''Senecio'', uncum, uncum ...

'' (''Senecio aureus'').''Agonopterix''
at Markku Savela's ''Lepidoptera and Some Other Life Forms'' Agonopterix senicionella caterpillar

References

Moths described in 1902 Agonopterix Moths of North America {{Agonopterix-stub