Glaucopsyche melanops, the black-eyed blue, is a butterfly of the family Lycaenidae. It is found in the western part of Southern Europe and North Africa.

Quick Facts Black-eyed blue, Scientific classification ...

Black-eyed blue
Imagos in Spain
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Lepidoptera
Family:	Lycaenidae
Genus:	Glaucopsyche
Subgenus:	Glaucopsyche (Glaucopsyche)
Species:	G. melanops
Binomial name
Glaucopsyche melanops Boidsduval, 1828
range
Synonyms[1]
Polyommatus melanops Boisduval, 1828

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The length of the forewings is 11–13 mm. The butterfly flies from May to July depending on the location.

The larvae feed on Fabaceae species.

L. melanops Bdv. (= saportae Hbn.) (82 h). Above similar to the smallest varieties of cyllarus, but the ocelli of the forewing beneath are enlarged, usually much more than in our figure; the row, moreover, is strongly curved and the ocelli gradually increase in size from the first to the fifth, the sixth ocellus, if present, being smaller again. In South- West Europe, ab. elongata Courv. (= marchandii Gerh.) has elongate ocelli; ab. marchandii Bdv. is beneath without ocelli. — In North Africa there occurs a considerably larger form with broader black margin to the forewing and somewhat darker underside; this is algirica Ruhl-Heyne. — Larva pale green, with thin dark markings; a brownish dorsal stripe and a white side-line, between which a dark green pencilling; head black. Until June on Dorycynium. Pupa pale brown, with black dots on the sides. In spring, usually frequent wherever it occurs.^[2]