Trachelidae
Guides
Meriola
Meriola is a genus of araneomorph spiders in the family Trachelidae, established by Nathan Banks in 1895. The genus contains approximately 24 species distributed primarily in South America, with some species extending into North America. Several species have been introduced to the United States, notably Meriola arcifera in California and Hawaii. The genus is taxonomically distinct from a homonymous genus of crabs in the family Xanthidae.
Meriola californica
Meriola californica is a species of true spider in the family Trachelidae, first described by Banks in 1904. The species is known to occur in the United States and Mexico. As a member of Trachelidae, it belongs to a family of ground-dwelling spiders commonly known as sac spiders. Published information on the specific biology and ecology of this species remains limited.
Trachelas
Trachelas is a genus of hunting spiders in the family Trachelidae, established by Ludwig Carl Christian Koch in 1872. The genus contains approximately 99 species with worldwide distribution across tropical, subtropical, and temperate regions. Trachelas sensu stricto is restricted to the Old World, while New World species represent a distinct lineage only distantly related to the core group. The genus has undergone significant taxonomic revision, with species previously assigned to Corinnidae now placed in Trachelidae.
Trachelas pacificus
Bull-headed sac spider
Trachelas pacificus is a species of true spider in the family Trachelidae, distributed across the southwestern United States and northwestern Mexico. It is commonly found in houses and adults are present year-round. The species is part of a genus known for sac-like retreats and active hunting behavior rather than web-building.
Trachelas volutus
Trachelas volutus is a species of true spider in the family Trachelidae. It is found in the United States and Mexico. The genus Trachelas was previously placed in the family Corinnidae but has since been reclassified to Trachelidae based on phylogenetic studies.