''Imma dioptrias'' 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

Immidae Immoidea is a superfamily of pantropical moths containing only the family Immidae comprising ten genera with around 250 species, over half of them in the genus ''Imma''. Many are brightly coloured and diurnal. The position of this group is curr ...

. It was described by

Edward Meyrick Edward Meyrick (25 November 1854, in Ramsbury – 31 March 1938, at Thornhanger, Marlborough) was an English schoolmaster and amateur entomologist. He was an expert on microlepidoptera and some consider him one of the founders of modern micr ...

in 1906. It is found on

New Guinea New Guinea (; Hiri Motu Hiri Motu, also known as Police Motu, Pidgin Motu, or just Hiri, is a language of Papua New Guinea, which is spoken in surrounding areas of Port Moresby (Capital of Papua New Guinea). It is a simplified version of ...

. 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 about 18 mm. The forewings are dark fuscous, the basal two-thirds suffused with violet blue. There are short yellowish subcostal and median streaks from the base, connected at the base, merged posteriorly in a broad transverse band of tawny-ochreous suffusion, limited by a narrow yellow fascia from before the middle of the costa to near the middle of the dorsum, not quite reaching it. A triangular pale yellow spot is found on the costa just before the apex, and a series of faint yellowish dots is located before the termen. The hindwings are transparent, with dark fuscous veins and a broad costal and narrower irregular terminal band. Both dark fuscous.''Transactions of the Entomological Society of London''. 1906 (2): 181.

References

Moths described in 1906 Immidae Moths of New Guinea {{Immidae-stub