- family: Linyphiidae
- genus: Idionella
- species: Idionella anomala (Gertsch & Ivie, 1936)
- species: Idionella deserta (Gertsch & Ivie, 1936)
- species: Idionella formosa (Banks, 1892)
- species: Idionella formosa pista (Chamberlin, 1948)
- species: Idionella nesiotes (Crosby, in Chamberlin, 1924)
- species: Idionella rugosa (Crosby, 1905)
- species: Idionella sclerata (Ivie & Barrows, 1935)
- species: Idionella titivillitium (Crosby & Bishop, 1925)
- species: Idionella tugana (Chamberlin, 1948)