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 Cranaidae are a family of neotropical harvestmen within the suborder Laniatores.
Escadabiidae is a small neotropical family of the harvestman infraorder Grassatores with six described species.
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.
Eutimesius is a genus of harvestmen in the family Stygnidae with five described species. All species are found in South America.
Globipes is a genus of harvestmen in the family Globipedidae from North America with three described species. Two are found on the western coast of the USA.
Metopilio is a genus of harvestmen in the family Globipedidae from Mexico and Central America.
Taito is a genus of harvestmen in the family Cosmetidae. The genus is endemic to the Amazon Basin in Brazil, Colombia, Ecuador and Peru.
Poecilaemula eutypa is a species of harvestmen from Central America in the family Cosmetidae. It was first described by Ralph Vary Chamberlin in 1925.
The harvestman family Globipedidae is a small lineage comprising 6 genera and some 33 species. They occur in various parts of North America and Central America. They were formerly included as a subfamily of Sclerosomatidae.
Cynortinae is a subfamily of harvestmen in the family Cosmetidae.
Discosomaticinae is a subfamily of harvestmen in the family Cosmetidae.
Ferkeriinae 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.
Bourguyia is a genus of harvestmen in the family Gonyleptidae with four described species. All species are found in Brazil.
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.
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)
