''Imma acosma'' 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 cur ...

. It was described by

Alfred Jefferis Turner Alfred Jefferis Turner (3 October 1861, in Canton – 29 December 1947, in Brisbane, Queensland, Australia) was a pediatrician and noted amateur entomologist. He was the son of missionary Frederick Storrs-Turner. He introduced the use of dip ...

in 1900. 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

Queensland ) , nickname = Sunshine State , image_map = Queensland in Australia.svg , map_caption = Location of Queensland in Australia , subdivision_type = Country , subdivision_name = Australia , established_title = Before federation , established_ ...

and

New South Wales ) , nickname = , image_map = New South Wales in Australia.svg , map_caption = Location of New South Wales in AustraliaCoordinates: , subdivision_type = Country , subdivision_name = Australia , established_title = Before federation , es ...

. 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 16–17 mm. The forewings are brownish-fuscous, with the posterior portion of the disc sometimes suffused with brownish-ochreous and sometimes with a small fuscous erect line on the inner margin at one-fifth. A very irregularly angled fuscous line runs from the costa before the middle to the inner margin beyond the middle and there is a fuscous dot in the disc at two-thirds, followed by two oblique fuscous lines from the costa at three-fifths and four-fifths towards, but not reaching, the anal angle and hindmargin respectively. All these markings may be obsolete. Sometimes, there is a dark fuscous line close to the upper three-fourths of the hindmargin. The hindwings are fuscous-grey. The larvae feed on '' Hymenanthera dentata''. They are active during the day. The larvae are green with dark speckles and sparse hairs.Lepidoptera Larvae of Australia
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References

Moths described in 1900 Immidae Moths of Australia {{Immidae-stub