Achrysocharoides callisetosus

FEMALE. Length 1.7 mm. Entire antenna dark brown. Frons golden-green (Fig. 12). Vertex metallic bluish-purple, golden-green inside ocellar triangle. Mesoscutum, scutellum and propodeum metallic bluish-green (Fig. 11). Coxae black with metallic purple tinges, femora and tibiae dark brown with metallic tinges; fore tarsus pale brown, mid and hind tarsi with tarsomeres 1+2 white, 3 pale brown, 4 dark brown. Forewing hyaline with an infuscate median spot. Petiole golden-green. Gastral tergites 1+2 metallic bluish-green, remaining tergites metallic dark purple. Frons below frontal suture with raised and weak reticulation, above frontal suture smooth (Fig. 8). Vertex smooth with weak reticulation inside ocellar triangle (Fig. 9). Occipital margin with sharp carina (Fig. 9). Ratios: length of flagellomeres I/II/III/IV/V (excl. spicule) 2.2/1.8/2.0/1.2/1.0. Pronotum with a strong transverse carina close to posterior margin (Fig. 10). Midlobe of mesoscutum with raised and strong reticulation, sidelobes with engraved and weak reticulation; notaular depressions smooth and shiny; midlobe with a median groove in posterior 1/3 (Figs 10, 11). Scutellum with engraved and weak reticulation and with two sublateral rows of foveae (Fig. 10). Axillae smooth and shiny (Fig. 10). Dorsellum flat with two foveae anterolaterally (Fig. 10). Forewing speculum closed below. Propodeum smooth and shiny, with two submedian carinae strongly diverging towards petiolar foramen, and with complete plicae (Fig. 10); propodeal callus with eight setae. Petiolar foramen semicircular. Petiole 1.5× as long as wide, dorsal surface with weak sculpture. Gaster oval-shaped. MALE. Unknown.

Costa Rica. The two available specimens have both been collected at high altitude (2600–2800 m).