Small hymenoptera insects , length 3.0 mm. Head and chest mostly yellow (propodeum and pronotum dark brown); legs are yellow; scape light brown (scape with brown lateral longitudinal stripe), brown flagellum. Metasomal 1-5th tergites brown (2-5th tergites laterally yellow), 6-7th tergites completely yellow. Vertex and forehead transversely grooved; Metasomal tergites 4–7 smooth. Scutellum and mesoplevron are smooth, face is furrowed. Molar space less than 0.25 from the height of the eye. Flagellum from 30-31 segments. The distance between the cell and the complex eye is about 2 times the diameter of the side ozellium. The ovipositor is longer than the abdomen. In the front wing of the developed radio-median vein. Anterior calf with a single row of short spines along the anterior margin. On the hind coxae, there is a distinct anteroventral basal protrusion, the vertex of the head laterally at the eyes is not sharply angular. Presumably, like other species of the genus Heterospilus , they parasitize beetles or butterflies. The species was first described in 2013 by American hymenopterologist Paul Marsh ( Paul M. Marsh ; , Kansas , USA ) with a group of American entomologists ( Wild Alexander L. , Whitfield James B .; University of Illinois at Urbane- Champaign , Erbana , Illinois , USA) and is named for the location: Cartago (Cartago Province). It differs from closely related species of Heterospilus cartagoensis by yellow mesoscutamum and head, as well as by the venation of the wings (the vein of the front wing is shorter than the vein 3RSa; in the back wing there is a vein SC + R, and the vein M + CU is shorter than the vein 1M) [1] .