''Sedenia achroa'' 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 ...

described by

Oswald Bertram Lower Oswald Bertram Lower (1863 in Adelaide, South Australia – 18 March 1925 in Wayville, South Australia) was an Australian chemist and pharmacist who is best known for his contributions to entomology, in particular butterflies and moths. His coll ...

in 1902. It is found in Australia, where it has been recorded from

Western Australia Western Australia (commonly abbreviated as WA) is a state of Australia occupying the western percent of the land area of Australia excluding external territories. It is bounded by the Indian Ocean to the north and west, the Southern Ocean to ...

. 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 about 22 mm. The forewings are greyish fuscous, strongly mixed with ochreous fuscous. There is a moderately thick obscure line from the costa to the inner margin and a line from costa to below the middle of the wing, which is then strongly curved inwards. There is an obscure fuscous subterminal line. The hindwings are light grey, somewhat fuscous tinged along the margins. There is a suffused fuscous line from the costa towards the inner margin and a similar line from the costa nearly to the anal angle, which is continued shortly above termen from there.

References

Moths described in 1902 Spilomelinae {{Spilomelinae-stub