Biodiversity and biogeography in Madagascar: revision of the endemic flea beetle genus Neodera Duvivier, 1891 with description of 19 new species (Coleoptera, Chrysomelidae, Galerucinae, Alticini)

摘要

A revision of the Malagasy flea beetle genus NeoderaDuvivier is provided. This genus includes 31 species of which 19 are new to science: Neodera amplicollissp.n., N.breviantennatasp.n., N.didiensissp.n., N.diversitarsissp.n., N.jenisisp.n., N.kraussisp.n., N.longicollissp.n., N.marojejyensissp.n., N.nigrotibialissp.n., N.opacasp.n., N.paulianisp.n., N.perrotisp.n., N.peyrierasisp.n., N.reductasp.n., N.similvadonisp.n., N.sogaisp.n., N.speronatasp.n., N.straminoidessp.n. and N.vadonisp.n.. The following two synonymies are proposed: N.fraternaDuvivier=N.amarellaBechyne and N.fulva Jacoby=N.hilariBechyne. In addition, neotypes for N.emarginataDuvivier and N.fraternaDuvivier, and lectotypes for N.fulvaJacoby, N.imitatrixDuvivier, N.madagassa (Harold), N.picticornis (Harold), N.transversicollisJacoby and N.varicornis (Harold) are designated. Additionally, the revision comprises a key for the identification of all 31 species considered, some habitus photos, microscope and scanning electron micrographs of many diagnostic characters, including median lobe of aedeagus and spermatheca. A first phylogenetic analysis based on parsimony is also provided. It is used with distributional data to put forward hypotheses about the natural history of the taxon in the light of the species differentiation models proposed thus far for Madagascar. This published work has been registered in ZooBank,