''Eumasia crisostomella'' 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 w ...

in the

Psychidae The Psychidae (bagworm moths, also simply bagworms or bagmoths) are a family of the Lepidoptera (butterflies and moths). The bagworm family is fairly small, with about 1,350 species described. Bagworm species are found globally, with some, su ...

family. It is found in

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

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 of ...

is 7–8 mm. The forewing ground colour is yellowish, with a distinct dark brown spot at one-half of the posterior margin and partly the anterior margin with some very narrow dark brown spots. The distal third is significantly spotted and converges partially to transverse lines. The hindwings are uniform dark grey.Transfer of Pygmaeotinea crisostomella Amsel, 1957 from Tineidae to Psychidae and its taxonomic status (Lepidoptera)
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References

Psychidae Moths described in 1957 Taxa named by Hans Georg Amsel {{Tineoidea-stub