Euplectrus orias Schauff 2001

Female. Length of body 1.3 mm. Antenna with scape and pedicel yellowish-brown, flagellomeres dark brown (Fig. 420). Mandibles and palpi yellowish-white. Head dark brown and shiny, lower face medially pale brown (Fig. 418). Frons close to eyes with one row of setae. Vertex smooth. Occipital margin with a carina. Mesosoma dark brown and shiny (Fig. 417). Each sidelobe of mesoscutum with eight setae. Scutellum 1.0× as long as wide; almost smooth with only very weak traces of reticulation. Dorsellum anteriorly with a groove that is divided by longitudinal carinae. Propodeum smooth; anteromedially with a transverse semicircular cup; propodeal callus with six setae. Legs yellowish-brown with hind coxa dark brown and hind femur pale brown (Fig. 417). Fore wing: costal cell on ventral surface with one row of setae, and margin with one seta close to marginal vein; with 13 admarginal setae, in one row. Gaster with anterior ½ yellowish-white with dark brown lateral margins, posterior ½ dark brown (Fig. 419). Ratios. HE/MS/WM = 2.5/1.3/1.0; POL/OOL/POO = 4.8/3.0/1.0; OOL/DO = 1.5; WE/WF/WH/HH = 1.0/3.5/5.5/4.5; WH/WT = 1.2; PM/ST = 1.5; TS1/TS2/LT/LT1/LT2/LT3/LT4 = 3.8/2.4/6.2/2.5/1.3/1.0/1.3; LP/WP = 0.6; MM/LG = 1.1. Male. Unknown.

Costa Rica (Guanacaste Province) (Schauff and Janzen 2001).