''Nistra '' is a genus of

snout moth The Pyralidae, commonly called pyralid moths, snout moths or grass moths, are a family (biology), family of Lepidoptera in the ditrysian Taxonomic rank, superfamily Pyraloidea. In many (particularly older) classifications, the grass moths (Cramb ...

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 is

monotypic In biology, a monotypic taxon is a taxonomic group (taxon) that contains only one immediately subordinate taxon. A monotypic species is one that does not include subspecies or smaller, infraspecific taxa. In the case of genera, the term "unisp ...

, being represented by the single species ''Nistra coelatalis'', which was formerly included in the genus '' Agrotera''. ''Nistra coelatalis'' was described by Francis Walker in 1859. It is found in Sri Lanka,

Sumatra Sumatra () is one of the Sunda Islands of western Indonesia. It is the largest island that is fully within Indonesian territory, as well as the list of islands by area, sixth-largest island in the world at 482,286.55 km2 (182,812 mi. ...

Borneo Borneo () is the List of islands by area, third-largest island in the world, with an area of , and population of 23,053,723 (2020 national censuses). Situated at the geographic centre of Maritime Southeast Asia, it is one of the Greater Sunda ...

Sumbawa Sumbawa, is an Indonesian island, located in the middle of the Lesser Sunda Islands chain, with Lombok to the west, Flores to the east, and Sumba further to the southeast. Along with Lombok, it forms the province of West Nusa Tenggara, but th ...

and

Sulawesi Sulawesi ( ), also known as Celebes ( ), is an island in Indonesia. One of the four Greater Sunda Islands, and the List of islands by area, world's 11th-largest island, it is situated east of Borneo, west of the Maluku Islands, and south of Min ...

. The wings are pale yellow with two brown lines. The forewings are partly brownish along the costa with a diffuse purplish tinge in the disc and metallic-purple at the base. The hindwings are metallic-purple at the tips and a metallic-purple patch on each side of the interior angle.

References

Moths described in 1859 Spilomelinae Moths of Asia {{Spilomelinae-stub