Klyngon serjaniae sp. nov.

(Figs 17, 18, 32, 46, 49, 55, 68, 82, 83, 100, 101)

Diagnosis. Female flagellum with a 3-segmented clava (Figs 82, 100); malar space very narrow, in female 0.03X as wide as height of eye; antennal scrobes as narrow grooves (Figs 17, 18); frontal suture present and almost complete, not discernible close to eyes (Figs 17, 18); occipital margin sharp with posterior ocelli very close to margin (Fig. 32); midlobe of mesoscutum with 1 pair of setae (Fig. 46); scutellum with 1 pair of setae (Fig. 46); with a narrow slit between scutellum and axillae (Fig. 46); forewing predominantly infuscate with outer margin hyaline, postmarginal vein short, 0.4X as long as stigmal vein, stigmal vein long and narrow with same width throughout, submarginal vein with 3 setae on dorsal surface (Fig. 68).

Description. FEMALE. Length 1.2–1.8 mm.

Scape yellowish-brown, pedicel and flagellum pale brown. Frons, vertex, mesoscutum and scutellum with metallic bluish-green. Coxae dark, metallic; fore femur dark brown, mid and hind femora yellowish-brown; tibiae and tarsi yellowish-brown. Forewing infuscate with apical 1/5 hyaline. Gastral tergites dark brown, shiny.

Flagellum with 2 small discoid anelli, 2 funiculars and a 3-segmented clava (Figs 82, 100). Frons and vertex with strong, raised reticulation; frons with 2 rows of setae along eye margin. Antennal scrobes as narrow grooves. Frontal suture as a narrow groove, almost complete – terminating close to eyes. Occipital margin with a sharp edge. Eyes bare.

Mesoscutum and scutellum convex. Mesoscutum 0.5X as long as wide; with strong, raised reticulation; midlobe with 1 pair of setae; notauli indistinct. Scutellum 1.2X as long as wide; with strong, raised reticulation; with 1 pair of setae; with a narrow slit between scutellum and axillae. Propodeum with posterolateral part drawn out into a point; propodeal callus with 6 setae; without a median carina; entire propodeal surface strongly reticulate-rugose and also with irregular carinae. Forewing with 3 setae on dorsal surface of submarginal vein; costal cell bare; speculum open below.

Petiole not visible, but presumably small. Gaster circular; gastral tergites smooth.

Ratios. HE/MS/WM = 37.0/1.0/14.0; POL/OOL/POO = 50.7/8.0/1.0; WH/WT = 1.1; LW/LM/HW = 2.0/ 1.0/1.3; PM/ST = 0.4; MM/LG = 1.4–1.5.

MALE. Length 1.1–1.4 mm.

Head and thoracic dorsum golden-green. Colour otherwise as in female.

Flagellum with 1 small discoid anellus, 2 funiculars and a 3-segmented clava (Figs 83, 101). Head otherwise similar to that of female..

Mesosoma as in female.

Ratios. HE/MS/WM = 13.3/1.0/7.0; POL/OOL/POO = 20.0/4.0/1.0; MM/LG = 1.0–1.2.

Distribution. Costa Rica, Panama.

Biology. From galls on Serjania mexicana (Sapindaceae) .

Material examined. Holotype female “ PANAMA, Panama, Parque Natural Metropolitano, 6.iii.1998, E. Medianero, ex galls on Serjania mexicana “ in BMNH. Paratypes: 4 females 3 males with same label data as holotype (3 females 2 males in BMNH, 1 female 1 male in CH); 1 female “ COSTA RICA, Puntarenas, Parque Nacional Corcovado, Estación Leona, 15.ii.2002, J. Azofeifa” (INBio).

Etymology. Named for the host plant on which the galls were collected.