''Caryocolum crepusculella'' is a

moth Moths are a paraphyletic group of insects that includes all members of the order Lepidoptera that are not butterflies, with moths making up the vast majority of the order. There are thought to be approximately 160,000 species of moth, many of ...

of the family

Gelechiidae The Gelechiidae are a family of moths commonly referred to as twirler moths or gelechiid moths. They are the namesake family of the huge and little-studied superfamily Gelechioidea, and the family's taxonomy has been subject to considerable d ...

. It was described by

Karl August Teich Karl, or Carl, August Teich (1838 Harthau-Chemnitz - 1908 Riga) was a German entomologist who specialised in Lepidoptera especially of the Baltic region. He described '' Caryocolum crepusculella'', '' Gelechia bergiella'' and '' Gelechia farinosa ...

from

Latvia Latvia ( or ; lv, Latvija ; ltg, Latveja; liv, Leţmō), officially the Republic of Latvia ( lv, Latvijas Republika, links=no, ltg, Latvejas Republika, links=no, liv, Leţmō Vabāmō, links=no), is a country in the Baltic region of ...

. This species was described from two

syntype In biological nomenclature, a syntype is any one of two or more biological types that is listed in a description of a taxon where no holotype was designated. Precise definitions of this and related terms for types have been established as part of ...

s collected on 27 June and 2 July on swamp land. According to the original description, ''C. crepusculella'' is related to ''

Caryocolum vicinella ''Caryocolum vicinella'' is a moth of the family Gelechiidae. It is found in most of Europe, eastwards to the southern Ural. Taxonomy The wingspan is about 12 mm. Adults are on wing from July to September. The larvae feed on '' Cerastium ...

'' and ''

Caryocolum fischerella ''Caryocolum fischerella'' is a moth of the family Gelechiidae. It is found in central and northern Europe. The wingspan is 11–13 mm. The forewings are mid-brown. The moths are on wing from June to July depending on the location. The ...

''. However, the real identity of this species remains obscure as the Teich collection was destroyed.

References

Moths described in 1903 crepusculella Moths of Europe {{Caryocolum-stub