Cyana effracta is a moth of the family Erebidae first described by Francis Walker in 1854. It is found in Nepal, the north-eastern Himalayas, Taiwan, China, Burma, Peninsular Malaysia, Sumatra and Borneo.
The wingspan is 22–30 mm."Cyana effracta posilla (Wileman)". Oriental Butterflies & Moths.
The larvae possibly feed on Elettaria species.
Subspecies Cyana effracta effracta Cyana effracta posilla Wileman, 1910 (Taiwan, China, India, Nepal)
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