''Arla diversella'' 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

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 dis ...

. It is found in

North America North America is a continent in the Northern Hemisphere and almost entirely within the Western Hemisphere. It is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South America and the Car ...

, where it has been recorded from

California California is a U.S. state, state in the Western United States, located along the West Coast of the United States, Pacific Coast. With nearly 39.2million residents across a total area of approximately , it is the List of states and territori ...

. 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 15–17 mm. The forewings are whitish overlaid with reddish fuscous scales and with a large ill-defined reddish-brown spot on the cell. A similar spot is found at the end of the cell, above and below which is a black costal and dorsal spot. There is also a small black streak on the fold and a series of ill-defined black spots around the apical and terminal margin. The hindwings are light fuscous.Proc. Ent. Soc. Wash. 18 (2) : 149

References

Moths described in 1916 Gelechiini Moths of North America {{Gelechiini-stub