Molecular phylogeny of Macrolycus (Coleoptera: Lycidae) with description of new species from China

摘要

Macrolycus is a genus of net-winged beetles with 69 species distributed in the eastern Palearctic and northernmost part of the Oriental region. The first molecular phylogeny of Macrolycus was produced using an rrnL+tRNA-Leu+nad1 mtDNA fragment. The major lineages and species limits were identified with morphology and molecular data. We propose that Cerceros is a subgenus of Macrolycus to enable identification of all adult specimens in the genus without DNA sequencing. Two species groups are proposed in Macrolycus s. str. and six in Cerceros. Additionally, twelve Macrolycus species are newly described from China: M.aquilinus, M.baihualingensis, M.bicolor, M.guangxiensis, M.jianfenglingensis, M.kuatunensis, M.lizipingensis, M.parvus, M.phoeniceus, M.rhodoneurus, M.rosaceus and M.sichuanensis. Macrolycus holzschuhi is proposed to be a junior subjective synonym of M.jeanvoinei. The highest diversity of Macrolycus is found in southern China. The species from the main islands of Japan are placed in two species groups: M.excellens is a sister to remaining species of the M.murzini group and the M.flabellatus group is a monophylum of closely related species in a sister position to the M. bicolor group.