21. Gonatopus plebeius (R. Perkins, 1912)

(Plate 130E, F)

Dicondylus plebeius R. Perkins 1912: 15.

Gonatopus plebeius (R. Perkins): Olmi 1984: 1647; Guglielmino & Olmi 1997: 229 Description of female Apterous; length 2.9–3.1 mm. Testaceous-reddish, except petiole black, metasoma blackbrown and antennal segments 3–10 brown. Antenna clavate. Head (Plate 130E) excavated, shiny, smooth, hairless, unsculptured or weakly granulated; occipital carina absent. Palpal formula 4/2 or 5/2. Pronotum shiny, hairless, unsculptured, crossed by strong transverse impression. Scutum unsculptured. Metanotum short, about as long as scutellum, not hollow behind scutellum. Metathorax + propodeum shiny, with anterior surface unsculptured and posterior surface transversely striate. Mesopleuron and metapleuron not transversely striate. Meso-metapleural suture obsolete. Segment 1 of protarsus slightly shorter than segment 4 (9:11). Enlarged claw (Plate 130F) with one small subapical tooth and eight–nine peg-like hairs. Segment 5 of protarsus (Plate 130F) with inner margin proximally serrated, with one row of 13–16 lamellae; distal apex with 10–16 lamellae. Tibial spurs 1/0/1.

Male. Unknown.

Material examined. Types: ♀ lectotype (designated by Olmi, 1982): INDONESIA: Java, Pekalongan, 1907, reared from jassid nymph, F. Muir (BPBM). Paratypes: same locality label as lectotype, two female paralectotypes (BPBM). Other material. CHINA: Guangdong, Mt. Yunjishan, reared from Cicadellid, parasitized host collected 9.VI.2002, dryinid cocooning 12.VI.2002, dryinid adult emerged 8.VII.2002, M. Olmi leg. (MOLC). INDONESIA: Java, Roban (BPBM); Indonesia, 1955–1960, H.H.F. Hamann leg., 1♀ (OLL). MALAYSIA: Malaya, Serdang (DBUS).

Hosts. Cicadellidae (Guglielmino & Olmi, 1997): in Malaysia (Malaya): Nephotettix nigropictus (Stål) (Guglielmino & Olmi, 1997).

Distribution. China (Guangdong), Indonesia (Java), Malaysia (Malaya).