Cosmetidae is a family of harvestmen in the suborder Laniatores. With over 700 species, it is one of the largest families in Opiliones. They are endemic of the New World with a Nearctic-Neotropical distribution where a large fraction of the diversity of Opiliones are represented by this single family. Cosmetidae have the northern extent of their range into the USA, where a small number species occur in the southern states. However, the family is especially diverse in Mexico, Central America and northern South America; especially the Andean realms. Their range also extends further south into Argentina and southern Brazil, but they are absent in Chile. Cosmetidae are prevalent in Amazonian region, but only relatively few also occur in Brazilian Atlantic Forest. Several species are also found in the Caribbean.
The Stygnidae are a family of neotropical harvestmen within the suborder Laniatores.
The Manaosbiidae are a family of neotropical harvestmen within the suborder Laniatores.
The Cranaidae are a family of neotropical harvestmen within the suborder Laniatores.
Yania is a genus of harvestmen from South America. Yania flavolimbata is the only species in the monotypic genus Yania. It was first described by Roewer, 1914.
Protolophus is a genus of harvestmen in the family Protolophidae from the Western US.
Vonones is a genus of armoured harvestmen in the family Cosmetidae. There are at least two described species in Vonones.
Cosmetinae is a subfamily of harvestmen in the family Cosmetidae.
Cynorta is a genus from the subfamily Cynortinae. The genus was first described by Carl Ludwig Koch.
Rhaucus is a genus of harvestmen in the family Cosmetidae. The genus is endemic to the Colombian northern Andes. There are currently seven described species in the genus.
Discosomaticinae is a subfamily of harvestmen in the family Cosmetidae.
Ferkeriinae is a subfamily of harvestmen in the family Cosmetidae.
Flirteinae is a subfamily of harvestmen in the family Cosmetidae.
Metergininae is a subfamily of harvestmen in the family Cosmetidae.
Taitoinae is a subfamily of harvestmen in the family Cosmetidae.
Spaeleoleptes is a genus of harvestmen in the family Escadabiidae with two described species. Both species are found in Brazil as cave endemics.
Poecilaemula is a genus of harvestmen in the family Cosmetidae with eight described species. All species are from Central America or South America. An overview of the taxonomy was provided by Medrano et al. (2024)
Poecilaemula iching is a species of harvestmen from Central America in the family Cosmetidae. It was first described by Medrano, Kury, Martins & Proud, 2024 in 2024.
Poecilaemula signata is a species of harvestmen from Central America in the family Cosmetidae. It was first described by Banks in 1909.
Abria is a genus of harvestmen in the family Cosmetidae with three described species. All species are from Venezuela. An overview of the taxonomy was provided by Villarreal, Medrano & Kury (2023)
