Cosmetidae, with around 700 species, is the second most diverse family of the Suborder Laniatores. They are distributed from Argentina to southern USA, most diverse in northern South America, Central America and Mexico. This Nearctic-Neotropical family comprises Opiliones with elaborate white/yellow/green/orange/red stripes and spots on the dorsal scutum and peculiar pedipalps strongly compressed and applied on the chelicerae.