Three new species of the leafhopper genus Mitjaevia Dworakowska from Karst areas in Southwest China (Hemiptera, Cicadellidae, Typhlocybinae) Author Luo, Guimei School of Karst Science, Guizhou Normal University, Guizhou, Guiyang 550001, China & State Engineering Technology Institute for Karst Desertification Control, Guiyang 550001, China Author Wang, Jinqiu School of Karst Science, Guizhou Normal University, Guizhou, Guiyang 550001, China & State Engineering Technology Institute for Karst Desertification Control, Guiyang 550001, China Author Song, Yuehua School of Karst Science, Guizhou Normal University, Guizhou, Guiyang 550001, China & State Engineering Technology Institute for Karst Desertification Control, Guiyang 550001, China songyuehua@163.com text ZooKeys 2022 2022-10-25 1125 159 169 http://dx.doi.org/10.3897/zookeys.1125.82258 journal article http://dx.doi.org/10.3897/zookeys.1125.82258 1313-2970-1125-159 5394C39688F241128BCD980A9F4F6C81 A3E99FD7C1A95E9A8D1E37D637C9947D Mitjaevia bijiensis sp. nov. Figs 1-5 , 16-23 Material examined. Holotype : ♂ , China : Guizhou Province , Bijie , 6.VI.2021 , coll. Jia Jiang and Ni Zhang. Paratypes : 1 ♀ , same data as holotype . Diagnosis. The new species can be distinguished from other species by the aedeagal shaft long with two apical processes; preatrium of aedeagus with two atrial processes. The head and pronotum yellow. Pygofer dorsal appendage tapered to apex and bent back into a hook shape. Style apex slightly expanded, underpart straight and thick. Connective with large central lobe. Description. Head and thorax yellow marked with brown; vertex with a pair of dark brown spots (Figs 1-4 ). Pronotum yellow, with irregularly dark brown patch medially (Figs 1 , 3 ). Scutellum yellow, transverse impression distinct. Face brownish yellow (Fig. 1 ); anteclypeus with black patches at sides basally (Fig. 4 ). Forewing brownish, with large milky white or whitish patches. Abdominal apodemes long, exceeding posterior margin of 3rd sternite (Fig. 23 ). Male genitalia . Pygofer lobe broad, with sparse fine setae on lateral surface (Fig. 20 ). Pygofer dorsal appendage slightly expanded at base, bends up and down and tapers gradually (Fig. 21 ). Subgenital plate with three macrosetae of different lengths medially (Fig. 19 ). Style long and strong; preapical lobe large (Fig. 16 ). Aedeagal shaft long, with pair of short bifurcate apical processes; preatrium also with two atrial processes (Figs 17 , 18 ). Connective M-shaped, with distinct stem and central lobe (Fig. 22 ). Figures 1-15. External morphology of Mitjaevia species 1-5 Mitjaevia bijiensis sp. nov. 1 habitus, dorsal view 2 habitus, lateral view 3 head and thorax, dorsal view 4 face 5 female thorax and abdomen, ventral view 6-10 Mitjaevia solitaria sp. nov. 6 habitus, dorsal view 7 habitus, lateral view 8 head and thorax, dorsal view 9 face 10 female thorax and abdomen ventral view 11-15 Mitjaevia salaxia sp. nov. 11 habitus, dorsal view 12 habitus, lateral view 13 head and thorax, dorsal view 14 face 15 female thorax and abdomen, ventral view. Figures 16-23. Mitjaevia bijiensis sp. nov. 16 style 17 aedeagus, ventral view 18 aedeagus, lateral view 19 subgenital plate 20 male pygofer, lateral view 21 pygofer dorsal appendage, lateral view 22 connective 23 abdominal apodemes. Body length (including wings). ♂, 2.9-3.0 mm, ♀, 2.8-2.9 mm. Remarks. The new species is similar to Mitjaevia diana (Distant, 1918) but can be distinguished by the aedeagal shaft with two apical processes and preatrium of aedeagus with two atrial processes; the style apex slightly expanded, underpart straight and thick; the connective with large central lobe. Etymology. The new species is named after its type locality Bijie City in China.