Small hymenopteran insects , length from 2.5 to 3.0 mm. Head and chest are brown (face is light brown); legs and scapus yellow (scapus without brown lateral longitudinal stripe), brown flagellum with lighter basal 1-3th flagellomers. Metasomal tergites 1-3 are brown, tergites 4-7 are light brown. Vertex and forehead transversely furrowed; 4th-7th metasomal tergites are smooth. The scutellum and face are smooth. Malar space is short, equal to or less than 0.25 of the height of the eye. Flagellum consists of 21-25 segments. The distance between the ocellium and the compound eye is approximately 1.5 times the diameter of the lateral ocellium. The ovipositor is approximately 75% of the length of the abdomen. In the front wing, a radio-medial vein is developed. Fore tibia with single row of short spines along anterior margin. On the hind coxae of the legs there is a distinct anteroventral basal protrusion; the vertex of the head on the side of the eye is not sharp angular. Presumably, like other species of the genus Heterospilus , parasitize on beetles or butterflies. The species was first described in 2013 by the American hymenopterologist Paul Marsh ( Paul M. Marsh ; North Newton , Kansas , USA ) with a group of American fellow entomologists ( Wild Alexander L. , Whitfield James B .; University of Illinois at Urbana-Champaign , Erbana , Illinois , USA) and named after the English entomologist , hymenopteran insect specialist Peter Cameroon ( P. Cameron , 1847-1912), who described many new taxa of these insects in the 1880-1900s. Heterospilus cameroni differs from closely related species by its very short malar distance and venation (the vein r of the fore wing is equal to or shorter than the vein 3RSa; the vein SC + R is present in the hind wing, and the vein M + CU is equal to the length of the vein 1M) [1] .