Palearachnid
Guides
Speleonychia sengeri
Speleonychia sengeri is a troglobitic harvestman (order Opiliones) described by Briggs in 1974. The genus Speleonychia is endemic to cave systems in western North America. As a member of the family Cladonychiidae, this species belongs to a group of small, eyeless, pale-colored arachnids adapted to subterranean environments. Very few observations exist—only five records on iNaturalist—reflecting its restricted habitat and cryptic lifestyle.