''Cotana joiceyi'' is a moth in the family Eupterotidae. It was described by

Walter Rothschild Lionel Walter Rothschild, 2nd Baron Rothschild, Baron de Rothschild, (8 February 1868 – 27 August 1937) was a British banker, politician, zoologist and soldier, who was a member of the Rothschild family. As a Zionist leader, he was present ...

in 1917. It is found in New Guinea. The wingspan is about 48 mm for males and 60 mm for females. Males are similar to '' Cotana unistrigata'', but the basal half of the forewings has a buffish-cream colour, and the outer half is buffish grey. Furthermore, the median band is more oblique and brown (not black) and there is no stigma. Females differ from ''C. unistrigata'' in being smaller and the white patch and postdiscal bands are much larger and pure white. Furthermore, the nervures and margins are deep bright yellow and the thorax and costal area are rufous orange.

References

Moths described in 1917 Eupterotinae {{Bombycoidea-stub