''Ypsolopha arizonella'' 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 ...

of the family

Ypsolophidae Ypsolophidae is a family of moths with some 160 species. They are included in the Plutellidae by many authors. Systematics This is a list of genera and selected species. Ypsolophinae * '' Phrealcia'' Chrétien, 1900 * '' Ypsolopha'' Latreille, ...

. It is known from the United States, including

Arizona Arizona ( ; nv, Hoozdo Hahoodzo ; ood, Alĭ ṣonak ) is a state in the Southwestern United States. It is the 6th largest and the 14th most populous of the 50 states. Its capital and largest city is Phoenix. Arizona is part of the Fou ...

. 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 about 22 mm. The antennae are dark brown. The labial palpi are light brown on the inside and strongly mottled with blackish scales on the outside. The tuft on the second joint is small, while the terminal joint is thickened with rough scales anteriorly. The head and thorax are light ochreous brown. The ground color of the forewings is rather light brown, but thickly overlaid on the costal three fourths with deep brown and dark purple scales, obscuring the ground color except along the dorsal edge. The hindwings are silvery fuscous and the legs are dark purplish fuscous.Notes on the Cerostoma Group of Yponomeutidae, with Descriptions of New North American Species
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References

Ypsolophidae Moths of North America {{Ypsolophidae-stub