Nikaea longipennis is a moth in the family Erebidae. It is found in Kumaon, Nepal, Sikkim, Assam and China (Sichuan, Yunnan, Shaanxi, Hubei, Jiangxi, Zhejiang, Fujian). The species was described by Francis Walker in 1855.
References
Web site: Pitkin . Brian . Jenkins . Paul . amp . Search results Family: Arctiidae . Butterflies and Moths of the World . Natural History Museum, London.