Toxomerus occidentalis was created in 1922.
Toxomerus geminatus was created in 1823.
Toxomerus marginatus was created in 1822.
Pima occidentalis was created in 1956.
Linderiella occidentalis was created in 1923.
Ucides occidentalis was created in 1897.
Elachista occidentalis was created in 1882.
Celtis occidentalis was created in 1753.
Daphnia occidentalis was created in 1986.
Androsace occidentalis was created in 1813.
Senna occidentalis was created in 1829.
Carex occidentalis was created in 1889.
Emblemariopsis occidentalis was created in 1970.