Agnesiella (Agnesiella) nigroflava Wang & Liu & Zhang & Huang 2024, sp. nov.

Agnesiella (A.) nigroflava Wang & Huang sp. nov. (Figs 21–24, 54, 98–105) Measurement. Male, 3.30–3.45 mm (including wings). Description. Body mostly dark brown (Figs 21, 22). Face largely dark brown, frontoclypeal area with dark brown transverse stripes, lorum and genae brown (Fig. 24). Vertex greyish-brown medially, remaining parts light yellow, with a brown patch along anterior margin connecting the 2 lateral black patches. Pronotum largely blackish brown with some light yellow areas, median area light brown; Triangles and scutellum dark brown (Fig. 23). Forewing with one brown patch each at base, middle and apical part in basal 2/3, apical 1/3 smoky brown; MP''+CuA' vein and 3rd apical cell with light brown patches, brochosome area pale brown with a blackish brown patch at each end (Fig. 54). Abdominal apodemes extending to base of 6th abdominal sternite (Fig. 98). Male pygofer with some scattered slender setae, a longitudinal sclerotized band near posterior margin with prominently extended ventral angle bearing some small protuberances; a horn-like pygofer process bearing some rigid setae (Figs 99, 100). Subgenital plate with distal part bearing some long fine setae and small rigid setae; a distinct protrusion subapically, apex with a few peg-like setae (Figs 101, 102). Style with a short, horn-like subapical process forming an obtuse angle with apical part (Figs 101, 103). Connective without central lobe (Fig. 101). Aedeagal shaft slender, with a dorsal fin-like ventral process, and a plate-like expansion dorsally at end (Fig. 104). Specimens examined. Holotype: ♂, CHINA, Sichuan Province, Liziping National Nature Reserve, 2000m, 9 Aug 2021, coll. Junjie Wang. Paratype: 2♂ 1♀, same data as holotype. Remarks. The new species is similar to A. (A.) hamaculeata sp. nov., but differs in the following characteristics: abdominal apodemes extending to base of 6th abdominal sternite (Fig. 98); pygofer process with some rigid setae (Fig. 100); style with subapical process forming an obtuse angle with apical part (Fig. 103). Etymology. This specific epithet is derived from Latin words “niger” and “flavus”, referring to the overall black and yellow coloration (Figs 21, 22).