Cyaniris semiargus

Mazarine blue
	Male, Estonia
	Italy
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Lepidoptera
Family:	Lycaenidae
Genus:	Cyaniris
Species:	C. semiargus
Binomial name
	Cyaniris semiargus; (Rottemburg, 1775)
Synonyms
	Papilio semiargus Rottemburg, 1775; Lycaena semiargus (Rottemburg, 1775); Polyommatus semiargus (Rottemburg, 1775); Papilio acis Denis & Schiffermüller, 1775 (preocc. Drury, 1773); Cyaniris argianus Dalman, 1816;

Cyaniris semiargus, the Mazarine blue, is a Palearctic butterfly in the family Lycaenidae.