Idionella

Idionella is a genus of North American dwarf spiders that was first described by Nathan Banks in 1893.

Species
it contains eight species and one subspecies, found in Mexico and the United States:
 * Idionella anomala (Gertsch & Ivie, 1936) – USA
 * Idionella deserta (Gertsch & Ivie, 1936) – USA
 * Idionella formosa (Banks, 1892) (type) – USA
 * Idionella f. pista (Chamberlin, 1949) – USA
 * Idionella nesiotes (Crosby, 1924) – USA, Mexico
 * Idionella rugosa (Crosby, 1905) – USA
 * Idionella sclerata (Ivie & Barrows, 1935) – USA, Mexico
 * Idionella titivillitium (Crosby & Bishop, 1925) – USA
 * Idionella tugana (Chamberlin, 1949) – USA