Multilocus phylogeny and species delimitation suggest synonymies of two Lucanus Scopoli, 1763 (Coleoptera, Lucanidae) species names.

Phylogenetic relationsships of four nominal Scopoli, 1763 species, Parry, 1874, Zilioli, 1998, Huang & Chen, 2010, and Schenk, 1999, are assessed based on mitochondrial (16S rDNA, COI) and nuclear (28S rDNA, Wingless) genes. The genetic distance is 0.0072 between and , and 0.0094 between and . Three species-delimitation approaches (ABGD, PTP, and GMYC) consistently showed + and + as two MOTUs. A new synonymy, = , is proposed. Synonymy of over is confirmed.