Ichneumonidae Latreille, 1802
Helcostizus annulicornis (Walsh, 1873)
Helcostizus astrictus Townes, 1983
Helcostizus canadensis (Provancher, 1874)
Helcostizus collinus (Provancher, 1879)
Helcostizus contortae Townes, 1983
Helcostizus dentifer Townes, 1983
Helcostizus echthroides (Ratzeburg, 1852)
Helcostizus fuscipalpis Townes, 1983
Helcostizus maculatus (Woldstedt, 1874)
Helcostizus microdon Townes, 1983
Helcostizus nigripes Townes, 1983
Helcostizus oxyurus Townes, 1962
Helcostizus restaurator (Fabricius, 1775)
Helcostizus rufiscutum Cushman, 1919
Helcostizus subaequalis Townes, 1983
Helcostizus subrectus Townes, 1962
Helcostizus tibialis Townes, 1962
Helcostizus yukonensis (Ashmead, 1890)
