CalxattusCalxattus is a genus of spiders in the family Salticidae.DistributionCalxattus is endemic to China.EtymologyThe genus name is a combination of Latin calx "limestone" and the typical salticid genus ending "-attus", referring to the karst rock surface habitat where the genus is found.Species, this genus includes two species:Calxattus dengba Ni, Yu & Zhang, 2025 – ChinaCalxattus serratus – China