1. Esagonatopus sinensis Xu, Olmi & He, sp. nov.

(Plate 136A–C)

Description of Female. Apterous; length 3.9 mm. Head brown, except anterior third of face, clypeus, gena and mandible testaceous; antenna brown, except segments 1–2 testaceous and segment 10 whitish; mesosoma brown, except scutum and distal extremity of propodeum yellow-testaceous and testaceous nuances on propleuron, pronotum and metanotum; petiole black; metasoma brown; legs brown-testaceous. Antenna clavate; antennal segments in following proportions: 9:6:17:10:8:7:6:5:5:8. Head excavated, shiny, unsculptured; frontal line complete; occipital carina absent; temple absent; POL = 1.5; OL = 1; OOL = 7; greatest breadth of posterior ocelli about as long as POL. Palpal formula 6/2. Pronotum crossed by strong transverse impression, shiny, unsculptured. Scutum shiny, with few longitudinal striae, with two lateral pointed apophyses (Plate 136B, C). Scutellum flat, shiny, unsculptured. Meso-metapleural suture almost completely obsolete, only shortly present on sides of metanotum. Metanotum shiny, unsculptured, flat, not hollow behind scutellum. Metathorax + propodeum shiny, unsculptured, with two small lateral pointed apophyses on sides of metanotum (Plate 136B, C). Mesopleuron partly unsculptured and partly transversely striate. Metapleuron and posterior surface of propodeum strongly transversely striate. Protarsal segments in following proportions: 13:3:6:17:25. Enlarged claw (Plate 136A) with one small subapical tooth and one row of seven peg-like hairs and one hair. Segment 5 of protarsus (Plate 136A) with one row of 19 lamellae; distal apex with at least 18 lamellae. Tibial spurs 1/0/1.

Male. Unknown.

Material examined. Type: holotype ♀: CHINA: Yunnan, Jinghong, Naban River National Nature Reserve, 19–23.VII.2011, YPT, Nasen Wei et al. leg. (SCAU) .

Hosts. Unknown.

Distribution. China (Yunnan).