''Udea indistinctalis'' 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

Crambidae Crambidae comprises the grass moth family of lepidopterans. They are variable in appearance, with the nominal subfamily Crambinae (grass moths) taking up closely folded postures on grass stems where they are inconspicuous, while other subfamilies ...

. It was described by William Warren in 1892. It is found in North America, where it has been recorded from

Alberta Alberta is a Provinces and territories of Canada, province in Canada. It is a part of Western Canada and is one of the three Canadian Prairies, prairie provinces. Alberta is bordered by British Columbia to its west, Saskatchewan to its east, t ...

Saskatchewan Saskatchewan is a Provinces and territories of Canada, province in Western Canada. It is bordered on the west by Alberta, on the north by the Northwest Territories, on the east by Manitoba, to the northeast by Nunavut, and to the south by the ...

Washington Washington most commonly refers to: * George Washington (1732–1799), the first president of the United States * Washington (state), a state in the Pacific Northwest of the United States * Washington, D.C., the capital of the United States ** A ...

and

California California () is a U.S. state, state in the Western United States that lies on the West Coast of the United States, Pacific Coast. It borders Oregon to the north, Nevada and Arizona to the east, and shares Mexico–United States border, an ...

. 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 ...

of ''Udea indistinctalis'' is approximately 26 mm. The forewings are pale grey, tinged with fawn, and sparsely dusted with blackish dots. The lines and stigmata are slightly darker, edged with black dots, while the exterior line is thick and bluntly denticulate (tooth like). The central area of the forewing is slightly paler than the rest. A row of small dark dots appears before the base of the fringes, which feature a darker medial line. The hindwings are dark ochreous, dusted with grey and marked by an indistinct dark discal spot and a submarginal line. Beyond this line, the outer portion of the wing is darker. Adults have been recorded on the wing from June to July and again from September to October.

Subspecies

*''Udea indistinctalis indistinctalis'' *''Udea indistinctalis johnstoni'' Munroe, 1966 (Washington)

References

Moths described in 1892 indistinctalis {{Udea-stub