Mileewini, Evans, 1947

He, Hong-Li, Yan, Bin & Yang, Mao-Fa, 2021, Two new species of the leafhopper tribe Mileewini (Hemiptera: Cicadellidae Mileewinae) from Hainan Island, China, with a key to species, Zootaxa 4933 (3), pp. 444-450 : 449

Key to species of Mileewini from Hainan Island

1 Vertex with distinctive pattern consisting of three median pale ovals narrowly bordered with black ( Fig. 2a ); forewing with costal margin with a white patch divided by a black or red line ( Fig. 2b ) ( Ujna ).................................... 2

- Vertex and forewing not as above ( Mileewa )................................................................ 3

2 Forewing with costal patches divided by red stripe ( Fig. 2b ); pygofer without ventral process......... U. cavipenis sp. nov.

- Forewing with costal patches divided by black stripe; pygofer with ventral process. See Dietrich et al., 2020; Yang et al., 2014, Fig. 7 for habitus........................................................................ U. consors Distant

3 Posterior part of mesonotum (scutellum) bright yellow. See Yang et al., 2014, Fig. 31 for habitus... M. margheritae Distant

- Posterior part of mesonotum (scutellum) brown or black...................................................... 4

4 Male subgenital plates with apical margin broad with big dentate process. See Yang et al., 2014, Fig. 41 for habitus.......................................................................................... M. shirozui (Ishihara)

- Male subgenital plates with apical margin without dentate process.............................................. 5

5 Forewing with white patch distally on costal margin, on middle of inner margin, and on base of second apical cell respectively. See Yang et al., 2014, Fig. 8 for habitus..................................................... M. alara Yang & Li

- Forewing not marked as above........................................................................... 6

6 Style S-shaped ( Fig. 1h ); aedeagus with a pair of flat basal processes............................................ 7

- Style and aedeagus not as above......................................................................... 8

7 Aedeagus with a pair of dentate apical processes. See Yang et al., 2014, Fig. 40 for habitus............... M. sharpa Yang

- Aedeagus with a lobe-like apical process ( Figs 1 j–l)........................................... M. triloba sp. nov.

8 Apex of aedeagus without processes. See Yang et al., 2014, Fig. 38 for habitus.................... M. ponta Yang & Li

- Apex of aedeagus with processes......................................................................... 9

9 Apical aedeagal processes attaining midlength of aedeagus. See Yang et al., 2014, Fig. 26 for habitus.................................................................................................. M. lackstripa Yang & Li

- Apical aedeagal processes short and stout, distinctly not attaining midlength of aedeagus. See Yang et al., 2014, Fig. 48 for habitus............................................................................. M. zhangi Yang & Li

Figures

FIGURE 1. Mileewa triloba sp. nov. a, habitus, dorsal view; b, habitus, lateral view; c, face; d, forewing; e, hind wing; f, pygofer, lateral view; g, subgenital plate, ventral view; h, style and connective, ventral view; i, end of style, lateral view; j–l, aedeagus, j, dorsal view, k, lateral view, l, ventral view. Scale lines for a–c = 500 μm; for f–l = 0.1 mm.

FIGURE 2. Ujna cavipenis sp. nov. a–c (male), a, habitus, dorsal view; b, habitus, lateral view; c, face. d–f (female), d, face; e, habitus, dorsal view; f, habitus, lateral view. g–h, wings, g, forewing; h, hind wing. i–l, valvulae, i, j, first valvulae, lateral view; k–l, second valvulae, lateral view. Scale lines = 500 μm.