Holbrookia Girard, 1851
Holbrookia maculata subsp. approximans
Holbrookia maculata bunkeri Smith, 1935
Holbrookia maculata dickersonae Schmidt, 1921
Holbrookia maculata elegans Bocourt, 1874
Holbrookia maculata subsp. maculata Girard, 1851
Holbrookia maculata perspicua Axtell, 1956
Holbrookia maculata pulchra Schmidt, 1921
Holbrookia maculata subsp. ruthveni
Holbrookia maculata thermophila Barbour, 1921
