Cacyreus virilis, the eastern bush blue, mocker bronze or mocker blue, is a butterfly of the family Lycaenidae. It is found from South Africa to Zimbabwe, through central and eastern Africa to south-western Arabia.

The wingspan is 24–26 mm for males and 24–27 mm for females. Adults are on wing year-round, with a peak from November to February.

The larvae feed on the flowers of various Lamiaceae species, including Coleus, Salvia, Calamintha and Lavandula species.

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