Paranonychidae
Guides
Metanonychus
Metanonychus is a genus of harvestmen (order Opiliones) in the family Paranonychidae, established by Briggs in 1971. The genus comprises eight described species, all endemic to the northwestern United States. These arachnids belong to the suborder Laniatores, a diverse group of short-legged harvestmen. Most species were described in the original 1971 revision, with one additional species added in 2019.
Paranonychus brunneus
armoured harvestman
Paranonychus brunneus is an armoured harvestman (Order Opiliones) in the family Paranonychidae. The species was originally described as Sclerobunus brunneus by Banks in 1893 and later transferred to Paranonychus. It is found in western North America, with records from Oregon, Washington, British Columbia, and Alaska. The species belongs to the suborder Laniatores, characterized by relatively short legs and heavily sclerotized body armor.
Sclerobunus idahoensis
Sclerobunus idahoensis is a species of armoured harvestman (order Opiliones) described by Briggs in 1971. Originally described as a subspecies of Sclerobunus robustus, it has since been elevated to full species status. The species belongs to the family Paranonychidae within the suborder Laniatores, a group characterized by heavily sclerotized body armor. It is known from North America, with the specific epithet suggesting an association with Idaho.
Sclerobunus robustus
Sclerobunus robustus is a montane-restricted harvestman species occurring in the southwestern United States. A 2014 taxonomic revision elevated two former subspecies (S. glorietus and S. idahoensis) to full species status. Population genomic research has identified multiple Pliocene-era refugia in the Southern Rocky Mountains and Intermontane Plateau, with genetically distinct clades showing patterns of isolation by distance in continuous mountain habitats and isolation by environment in isolated sky island populations.
Zuma
harvestman
Zuma is a genus of harvestmen (arachnids in the order Opiliones) established by Goodnight & Goodnight in 1942. It belongs to the family Paranonychidae, a group of small, cryptic harvestmen often found in moist microhabitats. The genus is part of the diverse Laniatores suborder, characterized by relatively short legs and compact bodies compared to other harvestman groups.
Zuma acuta
Zuma acuta is a species of armoured harvestman in the family Paranonychidae. It is known from North America, with a specific record from Feramni Town, Michigan. As an armoured harvestman, it belongs to a group of Opiliones characterized by hardened body structures. The species was described by Goodnight & Goodnight in 1942.
Zuma tioga
Zuma tioga is an armoured harvestman (order Opiliones) described by Briggs in 1971. It belongs to the family Paranonychidae within the infraorder Insidiatores. The species is known from North America, though specific locality details beyond this broad region are not well documented. Like other members of its family, it is a small, soil-dwelling arachnid with a heavily sclerotized body.