Ring-speciation
Guides
Calisoga
Calisoga is a genus of mygalomorph spiders in the family Nemesiidae, first described by Ralph Vary Chamberlin in 1937. The genus comprises five species, all endemic to the United States. Calisoga spiders are notable for their distribution pattern around the Central Valley of California, which has made them a significant study system for understanding ring speciation dynamics in mygalomorph spiders. Genetic studies indicate this is a lineage-rich complex with complex evolutionary history.
Calisoga longitarsis
False Tarantula
Calisoga longitarsis is a mygalomorph spider in the family Nemesiidae, commonly known as the False Tarantula. It is one of several species in the genus Calisoga distributed around the Central Valley of California. The species has been studied as part of research on ring speciation dynamics in California mygalomorph spiders. It is frequently observed and photographed, with over 2,300 records on iNaturalist.