Pedionis (Pediopsis)

Wang, Dongming & Zhang, Yalin, 2024, First record of the leafhopper genus Pedionis (Hemiptera: Cicadellidae: Eurymelinae: Macropsini) from Malaysia with description of a new species, Zootaxa 5543 (2), pp. 237-246 : 241-242

Key to male species of subgenus Pedionis (Pediopsis) (modified from Li et al., 2011)

Note. The species P. (P.) oeroe from Australia should belong to the subgenus Pedionis because the tegmina have only 2 subapical cells according to the original description, but the male genitalia have not been illustrated ( Kirkaldy 1907); therefore, this species is excluded from the key.

1 Aedeagal shaft with process or processes.................................................................. 8

- Aedeagal shaft without process.......................................................................... 2

2 Aedeagus broader basally and tapering apically............................................................. 3

- Aedeagus less broad basally than near apex................................................................. 4

3 Gonopore opening on apex of adeagal shaft..................................................... P. (P.) curvata

- Gonopore opening subapical.................................................................. P. (P.) venosa

4 Apical half of dorsal connective with serrated margin............................................... P. (P.) minuta

- Apical half of dorsal connective without serrated margin...................................................... 5

5 Pygofer ventral margin with small spines................................................ P. (P.) damingshanensis

- Pygofer ventral margin without small spines................................................................ 6

6 Gonopore large, occupying nearly half of shaft.............................................................. 7

- Gonopore small......................................................................... P. (P.) koghiensis

7 Caudal margin of pygofer tapered............................................................ P. (P.) lizizhongi

- Caudal margin of pygofer not tapered......................................................... P. (P.) obtusata

8 Aedeagal shaft with spicules on dorsal and ventral surfaces................................. P. (P.) spiculata sp. nov.

- Aedeagal shaft without spicules on dorsal and ventral surfaces................................................. 9

9 Aedeagal shaft with one pair of processes................................................................. 10

- Aedeagal shaft with two pairs of processes................................................................ 25

10 Aedeagal processes arising at apex of aedeagal shaft........................................................ 11

- Aedeagal processes arising subapically................................................................... 18

11 Aedeagal processes situated on the ventral margin of shaft apex............................................... 12

- Aedeagal processes situated on the dorsal margin shaft apex......................................... P. (P.) stigma

12 Apex of aedeagus arrow-like........................................................................... 13

- Apex of aedeagus curved or serrated..................................................................... 15

13 Apex of dorsal connective with two digits...................................................... P. (P.) hamiltoni

- Apex of dorsal connective without two digits.............................................................. 14

14 Aedeagal shaft bulbous....................................................................... P. (P.) mecota

- Aedeagal shaft not bulbous, tapering apically......................................................... P. (P.) lii

15 Apex of aedeagal shaft curved.......................................................................... 16

- Apex of aedeagal shaft serrate............................................................. P. (P.) cherraensis

16 Aedeagal shaft with a bulge near base, strongly sinuate in lateral aspect................................ P. (P.) serrata

- Aedeagal shaft with a bulge near middle, less sinuate in lateral aspect........................................... 17

17 Apical half of dorsal connective with serrated margin................................................ P. (P.) yangi

- Apical half of dorsal connective without serrated margin......................................... P. (P.) palniensis 18 Aedeagal processes with acerate margins....................................................... P. (P.) acerosa

- Aedeagal processes without acerate margins............................................................... 19

19 Aedeagal processes wide and serrated.................................................................... 20

- Aedeagal processes narrow and lamelliform............................................................... 23

20 Dorsal connective with serrated margin....................................................... P. (P.) clypellata

- Dorsal connective without serrated margin................................................................ 21

21 Ventral margin of aedeagal shaft deeply concave in lateral view................................................ 22

- Ventral margin of aedeagal shaft slightly concave in lateral view.................................... P. (P.) papillata

22 Forewing venation with white spots........................................................... P. (P.) aculeata

- Forewing venation without white spots.................................................... P. (P.) nigrocorporis

23 Aedeagal shaft with constriction at middle, strongly sinuate in lateral aspect............................. P. (P.) astrala

- Aedeagal shaft without any constriction, weakly sinuate in lateral aspect........................................ 24

24 Apical processes of aedeagus with serrated margins........................................... P. (P.) longiaxonica

- Apical processes of aedeagus with smooth margins.............................................. P. (P.) contrasta

25 Two pairs of aedeagal processes connected to each other by membrane.......................................... 26

- Two pairs of aedeagal processes separated from each other................................................... 27

26 Preapical pair of aedeagal processes wide basally, aedeagal shaft strongly sinuated................. P. (P.) kagoshimensis

- Preapical pair of aedeagal processes slender, aedeagal shaft less sinuated............................... P. (P.) garuda

27 Apical pair of aedeagal processes small and rounded, dorsad of larger lamelliform ventral processes........ P. (P.) tabulata

- Aedeagal processes not as above........................................................................ 28

28 Paired aedeagal processes close to each other................................................... P. (P.) yunnana

- Paired aedeagal processes well separated from each other.................................................... 29

29 Dorsal surface of aedeagal shaft with protuberance in middle.................................................. 30

- Dorsal surface of aedeagal shaft without protuberance........................................ P. (P.) rufoscutellata

30 Aedeagal shaft with a bulge near middle, preapical pair of processes near dorsal margin................ P. (P.) sumatrana

- Aedeagal shaft without a bulge nearly middle, preapical pair of processes near ventral margin....................... 31

31 Aedeagus broad basally in posterior view with shaft abruptly narrowed beyond base............................... 32

- Aedeagus narrow basally in posterior view with shaft evenly tapered through most of length............... P. (P.) spinata

32 Pygofer without caudo-dorsal spine.......................................................... P. (P.) dentiforma

- Pygofer with one or three caudo-dorsal spines.............................................................. 33

33 Pygofer caudo-dorsal angle with three obtuse dendritic spines................................. P. (P.) tribrachyblasta

- Pygofer caudo-dorsal angle with one spine................................................... P. (P.) dinghuensis