Arrenuridae

Arrenuridae is a family of prostigs in the order Trombidiformes. There are at least 3 genera and 110 described species in Arrenuridae.

Arrenurus (αρρεν - male, ουρά - tail) is a genus of water mites within the family Arrenuridae, and was first described by Antoine Louis Dugès in 1834. It has a cosmopolitan distribution in lentic waters, even on remote Pacific islands, and is found on every continent, with the possible exception of Antarctica. Some 950 species are currently recognised, making Arrenurus the largest of genera.