Tambocerus, Zhang & Webb, 1996

Naveed, Hassan & Zhang, Yalin, 2018, A key to species of the leafhopper genus Tambocerus (Hemiptera, Cicadellidae, Deltocephalinae) with description of a new species from Pakistan, Zootaxa 4462 (2), pp. 237-244 : 238

Key to species (³³) of Tambocerus

(modified from Viraktamath 2012 and Qu & Dai, 2014)

1 Pygofer with dark pigmented crest at posterior margin ( Figs 1K, 2A, 4A )......................................... 2

- Pygofer without dark pigmented crest at posterior margin ( Fig. 1K).............................................. 5

2 Pygofer with ventral dark pigmented crest at posterior margin.................................................. 3

- Pygofer with ventral and dorsal dark pigmented crest at posterior margin ( Fig. 4A ).................................. 4

3 Subgenital plate abruptly tapered at distal 2/3 to fingerlike apex; apical process of style long................. T. elongatus

- Subgenital plate sub quadrangular in ventral view ( Fig. 1L); apical process of style short...................... T. krameri

4 Forewing with dark brown irroration; pygofer with caudal margin smooth ( Fig. 2A); subgenital plates abruptly narrowed near mid length to form a finger-like apex ( Fig. 2B); aedeagal shaft with lamellate serrations not extending onto upper half ( Fig. 2D)...................................................................................... T. viraktamathi

- Forewing without dark brown irroration ( Fig. 3A, C ); pygofer with caudal margin serrated (Fig. A–B); subgenital plates bulging and subtriangular; aedeagal shaft with lamellate serrations extending beyond upper half (Fig. H–I)........................................................................................................ T. bulbulus sp. nov.

5 Pygofer without serrations posteriorly..................................................................... 6

- Pygofer with serrations posteriorly....................................................................... 10

6 Pygofer with posterior process acute apically; aedeagal shaft with bifurcate apex....................... T. robustispinus

- Pygofer with posterior process not acute apically; aedeagal shaft without bifurcate apex.............................. 7

7 Aedeagal shaft with pair of lateral processes................................................................ 8

- Aedeagal shaft without lateral processes................................................................... 9

8 Aedeagal shaft with processes distinctly longer than width of shaft.................................. T. longicaudatus

- Aedeagal shaft with processes similar in width to shaft............................................. T. triangulatus

9 Style with apical lobe rather long ( Fig. 1H); aedeagus with a ventral ridge at base ( Fig. 1J); shaft slightly curved laterally ( Fig. 1I)....................................................................................... T. furcostylus

- Style with apical lobe rather short ( Fig. 1E); aedeagus without a ventral ridge at base ( Fig. 1G); shaft bent at right angle near mid length ( Fig. 1F)............................................................................... T. daii

10 Pygofer constricted or narrowed towards posterior margin in lateral view........................................ 11

- Pygofer not constricted; slightly narrowed towards posterior margin in lateral view................................ 15

11 Aedeagal shaft with two pair of processes at apex................................................. T. quadricornis

- Aedeagal shaft without two pair of processes at apex........................................................ 12

12 Aedeagal shaft with bifurcate apex................................................................ T. furcellus

- Aedeagal shaft without bifurcate apex.................................................................... 13

13 Aedeagal shaft of uniform width; atrium produced ventrally ( Fig. 1C–D)................................... T. cholas

- Aedeagal shaft tapered towards apex; atrium not produced ventrally............................................ 14

14 Aedeagal shaft with triangular ventral process; shaft broader in basal half then narrowed distally in posterior view ( Fig. 1A–B).............................................................................................. T. acutus

- Aedeagal shaft lacking triangular ventral process; shaft in middle almost parallel sided ( Fig. 2E–F)............. T. zahniseri

15 Forewings with brown spots............................................................................ 16

- Forewings without brown spots................................................................... T. nilgiris

16 Pygofer caudal lobe rounded with dorsoposterior margin dentate........................................ T. dentatus

- Pygofer caudal lobe not rounded......................................................................... 17

17 Aedeagal shaft of uniform width in posterior view; curved dorsally, with lateral serrations on shaft extending to 0.75 length of shaft ( Fig. 2G–H)........................................................................... T. disparatus

- Aedeagal shaft with basal 0.75 broad in posterior view, without serrations; apical 0.25 length narrowed, with serrations ( Fig. 2I –J)....................................................................................... T. plumbeus

Figures

FIGURE 3. Tambocerus bulbulus sp. nov. A. habitus, dorsal view; B. face; C. habitus, lateral view; D. female seventh sternite, ventral view.

FIGURE 4. Tambocerus bulbulus sp. nov. A. male pygofer lobe, lateral view; B. apex of pygofer lobe, valve, lateral view; C. style, dorsal view; D. apex of style apophysis; E. pygofer, dorsal view; F. subgenital plates and valve, dorsal view; G. aedeagus and connective, dorsal view; H. aedeagus, posterior view; I. aedeagus, lateral view.