''Imma cyclostoma'' 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 in

Assam Assam (; ) is a state in northeastern India, south of the eastern Himalayas along the Brahmaputra and Barak River valleys. Assam covers an area of . The state is bordered by Bhutan and Arunachal Pradesh to the north; Nagaland and Manipur ...

in India and

Tanintharyi Region Tanintharyi Region ( my, တနင်္သာရီတိုင်းဒေသကြီး, ; Mon: or ; ms, Tanah Sari; formerly Tenasserim Division and subsequently Tanintharyi Division, th, ตะนาวศรี, RTGS: ''Tanao Si'', ...

Myanmar Myanmar, ; UK pronunciations: US pronunciations incl. . Note: Wikipedia's IPA conventions require indicating /r/ even in British English although only some British English speakers pronounce r at the end of syllables. As John C. Wells, Joh ...

. 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 21–22 mm. The forewings are rather dark fuscous, more or less sprinkled finely with pale ochreous, which sometimes forms a broad posterior discal suffusion. There is a line of pale ochreous scales along the submedian fold towards the base and a faintly indicated irregular line of similar scales from middle of the costa to two-thirds of the dorsum. An obscure dark fuscous discal dot is found at three-fifths and there is a more or less defined pale whitish-ochreous apical mark, and terminal row of minute sometimes connected crescentic dots. The hindwings are dark fuscous, somewhat lighter towards the base.''Transactions of the Entomological Society of London''. 1906 (2): 176.
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References

Moths described in 1906 Immidae Moths of Asia {{Immidae-stub