''Sufetula polystrialis'' 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 ...

in the family

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

. It was described by

George Hampson Sir George Francis Hampson, 10th Baronet (14 January 1860 – 15 October 1936) was an English entomologist. Hampson studied at Charterhouse School and Exeter College, Oxford. He travelled to India to become a tea-planter in the Nilgiri Hills ...

in 1912. It is found on the

Louisiade Islands The Louisiade Archipelago is a string of ten larger volcanic islands frequently fringed by coral reefs, and 90 smaller coral islands in Papua New Guinea. It is located 200 km southeast of New Guinea, stretching over more than and spread ...

. 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 ...

is 18–20 mm. The forewings are ochreous white tinged and irrorated with brown, the costal area suffused with brown. There is a short brown streak on the base of the median nervure and an oblique whitish subbasal striga from the costa with a slight blackish streak below the costa from it to the antemedial line, which is whitish, oblique and defined by a black line on the outer side from the costa to the submedian fold, then bent inwards to the base of the inner margin and defined by a brown fascia above. The medial part of the costa has two whitish semicircular marks, a small black discoidal spot and whitish streaks with diffused dark streaks between them on veins 7, 6, 5 and 4 to the postmedial line, which is whitish defined by a black line on the inner side, expanding at the costa. There is a triangular patch of blackish suffusion beyond it at the costa and some fuscous and brown suffusion below its retracted portion. There is a very oblique white streak defined on each side by brown from the submedian fold beyond the middle to the middle of the inner margin, as well as a black subterminal line. The hindwings are ochreous white, tinged and irrorated with brown. There is an oblique diffused blackish medial line defined by white on the outer side on the inner area, as well as a very oblique white postmedial line defined on the inner side by a black line and on the outer by dark suffusion. There is a black subterminal line defined by white on the inner side.''The Annals and Magazine of Natural History: Including Zoology, Botany, and Geology''

References

Moths described in 1912 Spilomelinae {{Spilomelinae-stub