Small hymenopteran insects , length from 3.5 to 4.0 mm. Head and chest are dark brown; legs are yellow; brown scapus (scapus with a brown lateral longitudinal stripe), brown flagellum with apical white 8-10th flagellomers. Metasomal tergites 1–4 are brown, tergites 5–7 are yellow. Vertex and forehead transversely furrowed; 4th-7th metasomal tergites are smooth. Granulated scutellum, smooth mesopleuron, furrowed face. Malar space greater than 0.25 from eye height. Flagellum from 30-31 segments. The distance between the ocellium and the compound eye is approximately 2 times the diameter of the lateral ocellium. The ovipositor is approximately 50% 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 ; , Kansas , USA ) with a group of American fellow entomologists ( Wild Alexander L. , Whitfield James B .; University of Illinois at Urban- Champaign , Erbana , Illinois , USA) and is named for its location: Cacao Station (Guanacaste Province). It differs from closely related species by Heterospilus cacaoensis in the structure of the prescutellar groove, the white apical segments of the flagellum, the propodeum tubercles, and the venation of the wings (the vein r of the anterior wing is shorter than the vein 3RSa; in the posterior wing the vein SC + R and the vein M + CM are shorter ) [1] .