A remarkable new apterous genus of Xanthopygina beetles is described here as Ikaros gen. nov. The new genus includes three new species, I. apteros gen. et sp. nov. from Colombia, I. paramo gen. et sp. nov. from Colombia and I. polygonos gen. et sp. nov. from Venezuela. Phylogenetic analyses using molecular and morphological data were performed to assess the phylogenetic position of Ikaros gen. nov. and whether the three new taxa formed a monophyletic group. All analyses, including those with aptery-associated characters removed, strongly supported the monophyly of Ikaros gen. nov. The genus could not be confidently resolved as a member of any of the existing genus-group lineages, likely due to a lack of morphological signal in the backbone of the tree. Further analyses, ideally with molecular data, are needed to determine the position of Ikaros gen. nov.
机构:
Negaunee Integrat Res Ctr, Field Museum Nat Hist, 1400 S Lake Shore Dr, Chicago, IL 60605 USAHokkaido Univ Museum, Hokkaido Univ, Kita 10,Nishi 8, Kita Ku, Sapporo 0600810, Japan
机构:
Field Museum Nat Hist, Integrat Res Ctr, 1400 S Lake Shore Dr, Chicago, IL 60605 USAHokkaido Univ, Hokkaido Univ Museum, Kita Ku, Kita 8,Nishi 5, Sapporo, Hokkaido 0600808, Japan