Mesene Doubleday (Lepidoptera: Riodinidae) from Parque Nacional da Serra do Divisor, Acre, Brazil, with taxonomic notes and the description of a new species Dolibaina, Diego Rodrigo Dias, Fernando Maia Silva Siewert, Ricardo Russo Mielke, Olaf Hermann Hendrik Casagrande, Mirna Martins Zootaxa 2016 4175 5 463 472 Bates, 1868 Bates 1868 [151,500,439,466] Insecta Lycaenidae Mesene Animalia Lepidoptera 7 470 Arthropoda species paraena  Ten males and one female of  M. paraenawere collected in PNSD in 2011 (two males and one female) and 2014 (eight males), all flying in a sunlit patch on the hilltop about five to eight meters above the ground after 15:30h. In 2014 two males were captured together with the holotype male of  M. gracielae  sp. nov.while they were engaged in a defensive flight for territory about five meters above the ground, around 16:00h. The specimens collected at the PNSD ( Figs 17–20) differ from the typespecimen of this species and its synonym,  M. fenestrellaBates, 1868, (phenotype as in Figs 15–16) by the presence of a subapical white spot on the forewing and more developed submarginal white spots on the hind wing, which are fused to the proximal orange marking. The morphology of the male genitalia is identical between these phenotypes. Due to the distribution of CAS and morphology of male genitalia, this species belongs to the “  phareus” species group ( Hall & Harvey 2002).