A new genus and three new species of Empoascini (Hemiptera: Cicadellidae: Typhlocybinae) from China Author Ding, Yan 0009-0005-3314-040X Institute of Entomology, Guizhou University, Guiyang 550025, P. R. China. & Guizhou Provincial Key Laboratory for Agricultural Pest Management of the Mountainous Region, Guiyang 550025, P. R. China. Author Yan, Bin 0000-0002-5290-4576 Institute of Entomology, Guizhou University, Guiyang 550025, P. R. China. & Guizhou Provincial Key Laboratory for Agricultural Pest Management of the Mountainous Region, Guiyang 550025, P. R. China. Author Yu, Xiao-Fei 0000-0002-1362-9524 Guizhou Provincial Key Laboratory for Agricultural Pest Management of the Mountainous Region, Guiyang 550025, P. R. China. & College of Tobacco Science, Guizhou University, Guiyang 550025, P. R. China. Author Yang, Mao-Fa 0000-0002-5523-6825 Institute of Entomology, Guizhou University, Guiyang 550025, P. R. China. & Guizhou Provincial Key Laboratory for Agricultural Pest Management of the Mountainous Region, Guiyang 550025, P. R. China. & College of Tobacco Science, Guizhou University, Guiyang 550025, P. R. China. text Zootaxa 2024 2024-04-04 5433 1 121 132 http://dx.doi.org/10.11646/zootaxa.5433.1.5 journal article 293423 10.11646/zootaxa.5433.1.5 30e8f5e7-ec07-452f-997f-2aeaad518abc 1175-5326 10953631 713CDA64-B458-438E-AB0D-0A918A2B63B1 Dayus motuoensis Ding, Yu & Yang sp. nov. ( Figs 37–51 ) Description: Length. Male 3.5 mm. Whole body red ( Figs 37–40 ). Eyes grayish-black ( Figs 37–40 ). Coronal suture reddish brown ( Figs 37, 40 ). Legs red to light orange-red ( Figs 38, 39, 40 ). Forewing with veins red to reddish-brown ( Figs 37, 38, 41 ). Head including eyes slightly wider than pronotum in dorsal view, coronal suture not reaching midlength of crown ( Figs 37, 40 ). Face narrow and slender, convex in lateral view ( Figs 38, 39 ). Head anterior margin roundly produced ( Figs 37, 40 ). Forewing narrow, with veins RP, MP’ and MP’’+CuA arising from m cell, hindwing with CuA unbranched ( Figs 41, 42 ). Male ventral abdominal apodemes reaching the end of segment 4 and diverging ( Fig. 43 ). Male pygofer with 13 rigid macrosetae, ventral dorsal bridge clearly defined, and ventral appendage with slightly sinuate and expanded, tapering to apex ( Figs 44, 45, 46 ). Subgenital plate extends beyond pygofer side, with 4 A- group setae, 12 B-group spiny setae, 15 C- group setae, and 2–3 rows D-group setae ( Figs 44, 45, 47 ). Paramere slim and curved, with tiny teeth and 5–6 fine setae subapically ( Fig. 48 ). Connective fully united with the base of aedeagus ( Figs 49, 50 ). Aedeagus shaft with apical process and midlength with bifurcate processes extended to different directions on each side ( Figs 49, 50 ). Anal tube processes broad, curved, and tapering apically ( Fig. 51 ). FIGURES 37–42. Dayus motuoensis Ding, Yu & Yang sp. nov. , male holotype. 37 habitus, dorsal view; 38 habitus, lateral view; 39 face, anterior view; 40 head and pronotum, dorsal view; 41 Forewing; 42 Hindwing. Scale bars: 500 μm . FIGURES 43–51. Dayus motuoensis Ding, Yu & Yang sp. nov. , 43 abdominal apodemes; 44 male genitalia, dorsal view; 45 male genitalia, left lateral view; 46 ventral pygofer appendage; 47 subgenital plate; 48 paramere; 49 aedeagus, paramere and connective, ventral view; 50 aedeagus and connective, left lateral view; 51 anal tube; Scale bars: 100 μm. Material examined. Holotype ♂ , Dexing , Motuo , Xizang , China , 95.3078° E , 29.3262° N , 827.4 m, 29 June 2022 , coll. Yan Ding. Paratypes : 1♂ , Damuluo , Motuo , Xizang , China , 95.4641° E , 29.4937° N , 1569.48 m, 3 July 2023 , coll. Yan Ding ; 1♂ Jingdong , Puer , Yunnan , China , 22 July 2022 , coll. Hong-Li He. Etymology. The name of the new species is derived from the collecting location of type species (Motuo, Xizang , China ). Remarks. This species is similar to Dayus lii Qin & Zhang, 2007 mainly in body colour and the shape of the aedeagus. Both species have a pair of bifurcated lateral aedeagus processes ( Figs 49, 50 ), but the new species differs from the latter in having the ventral pygofer appendage unbranched apically ( Fig. 46 ), and the aedeagus processes located at the midlength of the shaft and oriented laterad ( Figs 49, 50 ). In contrast, Dayus lii has the aedeagus processes arising subapically. Distribution. China ( Xizang , Yunnan ).