描述 Male. Body length 2.5-3.0 mm, wing length 0.3 mm.
Head. Brown with brownish yellow hairs. Frons prominent. Antenna 0.7-0.8 mm long. Scape pale brown with extreme tip pale yellow; pedicel pale brown with tip darker; fusion segment (first flagellomere) brownish yellow, flagellomeres 2-6 brownish yellow. Scape subcylindrical; pedicel club-shaped; fusion segment subconical, flagellomeres 2-5 subcylindrical with three long hairs each, last flagellomere short with two long apical hairs. Proboscis and palpus brownish yellow with brownish yellow hairs.
Thorax. Pronotum and mesonotum brownish yellow with white hairs. Coxae, trochanters, femora and tibiae yellow; tarsi brownish yellow. Hairs on legs brownish yellow. Wing white. Halter 0.3-0.4 mm long, white.
Abdomen. Tergites and sternites brown. Hairs on abdomen white.
Genitalia. Posterior margin of tergite 9 with a broadly V-shaped median emargination. Gonocoxite elongate, with long hairs on both dorsal and ventral sides. Gonostylus smoothly curved with a blunt basal tooth on inner margin, which bears several hairs; tip of gonostylus with tuft of microscopic hairs. Blackened sclerotized lobe present at base of gonostylus; sclerotized lobe bidentate, two teeth of it nearly equal in size. Paramere triangular with tip relatively acute and curved downward. Claspette triangular with tip relatively acute. Aedeagus short and covered with a rounded lobe.
Female. Body length 3.0 mm, wing length 0.3 mm. Similar to male, but femora thinner; cercus shorter than hypogynial valve.