Descriptions of three new species of jumping-spiders, genus Arnoliseus (Araneae, Salticidae), from Rio de Janeiro state, Brazil, with comments on their genital morphology and a key to species

Abstract

New data on the jumping-spider genusArnoliseusare presented. Three new species from the Atlantic Forest in Rio de Janeiro state are described, based on both sexes:Arnoliseus cariocasp. nov.from the city of Rio de Janeiro, andArnoliseus hastatussp. nov.andArnoliseus falcatussp. nov.from the municipality of Cachoeiras de Macacu. The genus’ genital morphology is discussed in detail and new English terminology for their structures is created. An identification key for allArnoliseusspecies is given.