''Udea hyalistis'' 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 family Crambidae. It was described by

Oswald Bertram Lower Oswald Bertram Lower (1863 in Adelaide, South Australia – 18 March 1925 in Wayville, South Australia) was an Australian chemist and pharmacist who is best known for his contributions to entomology, in particular butterflies and moths. His colle ...

in 1902. It is found in

Australia Australia, officially the Commonwealth of Australia, is a Sovereign state, sovereign country comprising the mainland of the Australia (continent), Australian continent, the island of Tasmania, and numerous List of islands of Australia, sma ...

, where it has been recorded from Victoria. 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 22–26 mm. The forewings are pale brownish grey with a clear white median subcostal spot, edged with some darker scales. There is a similar spot narrower and twice constricted. The hindwings are ochreous whitish with some brownish-grey irroration (speckles), an antemedian dot and a subterminal band of the same colour.New "Australian Lepidoptera of the families Noctuidae and Pyralidae"

References

Moths described in 1902 hyalistis {{Udea-stub