Agnesiella (D.) tridigitata Huang & Zhang sp. nov.

(Figs 49, 52, 55, 58, 157–165)

Measurement. Male, 3.25 mm (including wings).

Body infuscate (Figs 49, 52). Most parts of face black-brown with outer margins of gena ivory (Fig. 58). Pronotum with 7 patches black-brown. Scutellum yellow ochre with triangles dark brown and 2 small brown patches at central area (Fig. 55). Forewing with basal half covered with smoky infuscate patches and claval apex brown; brochosome field testaceous (Figs 49, 52, 157).

Abdominal apodemes reaching end of 5th abdominal sternite (Fig. 158). Male pygofer side with rigid microsetae band closer to posterior margin than fine setae band on middle part; a sclerotized band near posterior margin and a trifurcate digitiform appendage arising from posteroventral margin (Fig. 159). Subgenital plate with outer margin sclerotized except at end (Figs 161, 162). Paramere with subapical protrusion small (Figs 161, 163). Connective with stem longer than lateral arms and central lobe absent (Fig. 161). Aedeagal shaft straight with apex extended ventrally and ventral margin undulate subapically, ventral appendage with 2 digitiform branches respectively directed upwards and downwards in lateral view (Figs 164, 165).

Specimens examined. Holotype: ♂, CHINA, Yunnan Province, Xinzhu, 2250m, Alnus nepalensis, 15-XI-1999, coll. I. Dworakowska. Paratype: 2♂ 1♀, same data as holotype; 1♂, CHINA, Yunnan Province, Jinping, 1600m, 11- V-1956, coll. Keren Huang ; 2♀, CHINA, Yunnan Province, Xinzhu, 2300m, Alnus nepalensis, 16-XI-1999, coll. I. Dworakowska.

Etymology. The specific name is derived from Latin compound word “tridigitatus, referring to the trifurcate pygofer appendage (Fig. 160).

Notes. The new species resembles Agnesiella (Draberiella) fatima, but differs in the male pygofer side with a trifurcate appendage (Fig. 160), in the aedeagal shaft with an undulate ventral margin subapically and in ventral appendage with only 2 digitiform branches forming an arch in lateral view (Fig. 164).