Klyngon aulacis sp. nov.

(Figs 2, 4, 24, 39, 61, 71, 90)

Diagnosis. Female flagellum with a 3-segmented clava (Figs 71, 90); malar space very narrow, 0.04X as wide as height of eye (Fig. 90); antennal scrobes as deep, wide grooves (Fig. 4); frontal suture absent (Fig. 4); occipital margin rounded with posterior ocelli situated away from margin (Fig. 24); midlobe of mesoscutum with 12 scattered setae and notauli strong and deep in posterior 2/3 (Fig. 39); scutellum with 12 scattered setae (Fig. 39); with a narrow slit between scutellum and axillae (Fig. 39); forewing with 2 rows of admarginal setae and submarginal vein with 3 setae (Fig. 61).

Description. FEMALE. Length 1.4 mm.

Scape yellowish-brown, pedicel and flagellum dark brown. Frons black with metallic green tinges. Vertex, mesoscutum and scutellum black with metallic purple tinges. Coxae, femora and tibiae dark and metallic, tarsomeres 1–3 yellowish-white, tarsomere 4 dark brown. Wings hyaline. Gastral tergites metallic bluishgreen, tergites 2–7 dark with metallic purple tinges.

Flagellum with 1 large anellus, 2 funiculars and a 3-segmented clava (Figs 71, 90). Frons and vertex with strong, raised reticulation. Antennal scrobes deep and distinctly delimited, shiny; with an interscrobal prominence; frontal suture absent. Occipital margin rounded. Eyes bare.

Mesoscutum and scutellum convex. Mesoscutum 0.5X as long as wide; with strong, raised reticulation; midlobe with 12 scattered setae; notauli strong, deep in posterior 2/3, in anterior 1/3 as a narrow ± distinct groove. Scutellum 1.1X as long as wide; with strong, raised reticulation; with 12 scattered setae; with a narrow slit between scutellum and axillae. Propodeum with posterolateral part drawn out into a point; spiracular sulcus absent; propodeal callus with 8 setae; with a narrow median carina; entire propodeal surface reticulate. Forewing with 3 setae on dorsal surface of submarginal vein; base of costal cell with setae on ventral surface; with 2 rows of admarginal setae (i.e. setae close to marginal vein) on ventral surface; speculum large and open below.

Petiole not visible, but presumably small. Gaster circular; gastral tergites smooth and partly shrivelled. Ratios. HE/MS/WM = 26.0/1.0/12.5; POL/OOL/POO = 6.0/1.0/1.2; WH/WT = 1.0; LW/LM/HW = 2.0/ 1.0/1.4; PM/ST = 0.7; MM/LG = 1.3.

MALE. Unknown.

Distribution. Costa Rica.

Biology. Unknown.

Material examined. Holotype female “ COSTA RICA, Heredia, Estación Biológica La Selva, 10º25'N 84º01'W, iv.1994, INBio-OET”, in INBio.

Etymology. Named for the distinct notaular grooves ( aulacis = furrow in Latin).