Goniopsara ridens sp. nov.

(Figs 14–19)

Type material. Holotype, female, “ Laos. / Pak Vet. / Nam Khane R. / 13.XI.1918 / R.V. de Salvaza.” (BMNH).

Description. Structure. Generally as mentioned for the genus and type species of the genus above.

Metope with very weak median carina running from its upper margin to its middle and with strong V-shaped carina above concave metopoclypeal suture (Figs 15, 17). Ocelli present above scapi. Coryphe 4.5 times as wide as long medially (Fig. 18). Pronotum with median carina not reaching its posterior margin. Mesonotum 2.5–3.0 times as long as pronotum medially. Forewing basal cell narrowly oval; M 1 and M 2 furcating only apically. Clavus long, 9/10 of whole wing length in lateral view, opened (Fig. 14). Apex of clavus distinctly claw-shaped. First metatarsomere with 6 (4 + 2) intermediate spines in horse-shoe shape.

Coloration. Metope brown, dark brown to black above clypeus (Fig. 15). Head laterally yellowish, with four dark brown bands on each side (Fig. 16). Postclypeus yellow, with brown median carina and lateral stripes. Scapus and pedicel dark brown. Rostrum brownish yellow, with black apex. Coryphe brown to dark brown. Pronotum brown to dark brown, with brownish yellow paranotal lobes. Mesonotum brownish yellow between lateral carina and dark brown outside of carinae. Tegulae dark brown to black. Forewing corium brown to dark brown, with large light spot at costal margin near to its middle and with wide zigzag-shaped black band at its proximal half (Fig. 14). Clavus yellowish brown. Body below brownish yellow, except dark brown medially sternites IV, V, and VII. Legs brownish yellow, except femora and tibiae with dark brown bands or spots. Anterior connective laminae of gonapophyses VIII and anal tube dark brown.

Female terminalia. Hind margin of sternite VII with pair of long semicircular processes (lobes) medially (Fig. 19). Anal tube wide.

Total length. 11 mm.

Etymology. Species name is derived from the Latin “ridens ” for smiling referring to concave metopoclypeal suture.