Penthema darlisa, the blue kaiser, is a species of satyrine butterfly found along the Himalayas, extending into Southeast Asia.
Subspecies Penthema darlisa darlisa (Assam to Burma, Yunnan, West Thailand) Penthema darlisa mimetica Lathy, 1900 (south-eastern Thailand) Penthema darlisa melema Riley & Godfrey, 1921 (northern Thailand, Laos, Vietnam) Penthema darlisa merguia Evans, 1924 (southern Burma, Peninsular Thailand) Penthema darlisa pallida Li, 1994 (Yunnan)
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