Maculinea (van Eecke, 1915) Phengaris is a genus of gossamer-winged butterflies in the subfamily Polyommatinae.

Alternatively, Maculinea could be restricted to the one or two species of "Alcon" blues, and the rest of it be separated as a new genus.

But this would create two very small genera, which is generally avoided by modern taxonomists.

[citation needed] The most recently discovered species in the genus is P. xiushani, first reported in 2010 and found in undisturbed forested mountains, unlike all the other members which live in grasslands over their entire range of distribution.

[2] The species, listed in the presumed phylogenetic sequence from the most ancestral to the most apomorphic, are:[3][failed verification] Basal group (Maculinea sensu stricto) Phengaris sensu stricto Other "Maculinea" Incertae sedis