Euplectrus ronaldzunigai Hansson

Female. Length of body 2.0 mm. Antenna with scape yellowish-white, pedicel yellowish-brown, flagellomeres 1–3 pale brown, 4–6 dark brown (Fig. 318). Mandibles yellowish-white, palpi white. Head black and shiny, lower face medially dark reddish-brown, pale area reaching to level of middle of toruli (Fig. 316). Frons close to eyes with one row of setae (Fig. 322). Vertex smooth (Fig. 323). Occipital margin with a carina behind ocellar triangle (Fig. 323). Mesosoma black and shiny (Fig. 315). Each sidelobe of mesoscutum with 11 setae. Scutellum 0.9× as long as wide; with very weak engraved reticulation (Fig. 324). Dorsellum without a groove or foveae along anterior margin (Fig. 781). Propodeum with very weak reticulation (Fig. 781); anteromedially with a very short and wide semicircular cup; propodeal callus with eight setae. Legs yellowish-white with hind coxa and apical ¾ of hind femur yellowish-brown (Fig. 315). Fore wing: submarginal vein with four setae; costal cell with one row of setae on ventral surface, and margin with five setae close to marginal vein; with 14 admarginal setae in one row. Gaster with anterior ½ yellowish-white with dark brown lateral margins, posterior ½ dark brown (Fig. 317). Ratios. HE/MS/WM = 2.1/1.0/1.1; POL/OOL/POO = 4.7/2.8/1.0; OOL/DO = 1.6; WE/WF/WH/HH = 1.0/2.7/4.8/3.7; WH/WT = 1.1; PM/ST = 1.7; TS1/TS2/LT/LT1/LT2/LT3/LT4 = 3.8/2.4/6.4/1.8/1.4/1.0/1.9; LP/WP = 1.2; MM/LG = 1.0. Male. Unknown.

Costa Rica (Guanacaste Province).