Jerarquía taxonómica:
Ichneumonidae → Exomus humeralis (Say, 1829)

Familia:
Ichneumonidae

Autor:
(Say, 1829)

Sinónimos:
Exomus australis (Cresson, 1870)
Exomus lavallensis (Provancher, 1874)
Exomus piceatus (Rohwer, 1913)
Exomus chiricensis Townes, 1960
Exomus excomptus Townes, 1860
Exomus mexicanus Townes, 1960
Exomus sierrae Townes, 1960