The genus Chelonus s. str. (Chelonus) Panzer (Hymenoptera: Braconidae: Cheloninae) is reviewed with particular focus on species associated with fall armyworm, Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae). Additionally, information on the biology and various mass-rearing techniques of the enumerated species are furnished, underlining their significance in biological control and integrated pest management strategies.