Tambocerus Zhang & Webb, 1996

Viraktamath, C. A., 2012, Seven new species of the leafhopper genus Tambocerus (Hemiptera: Cicadellidae) from the Indian subcontinent, Zootaxa 3385 (1), pp. 43-61 : 44

Tambocerus Zhang & Webb

Tambocerus Zhang & Webb 1996: 8–9 ; Shen, Shang & Zhang 2008: 242–243. Type species: Selenocephalus disparatus Melichar 1903 , by original designation.

Zhang & Webb (1996) and Shen et al. (2008) have adequately characterized the genus. A revised description largely based on Zhang & Webb (1996) incorporating the variations found in the new species decribed here is given.

Yellow with or without brown irroration. Head narrower than or nearly equal in width to pronotum; anterior margin rounded to face in profile, finely transversely striated; ocelli on margin separated by approximately own diameter from corresponding eye. Anterior tentorial branches Y-shaped. Vertex slightly produced medially slightly transversely sulcate subapically; smooth with some indistinct longitudinal striations. Face with transclypeal suture distinct; laterofrontal suture extended to lateral margin of corresponding ocellus ( Fig. 21 ); antennae situated slightly below midheight of eyes in facial view, moderately long, clearly shorter than half body length. Pronotum smooth, transversely faintly wrinkled; sides short and carinated. Forewing outer claval vein connected to claval suture with cross vein; three anteapical cells and four apical cells; inner anteapical cell open behind, outer anteapical cell small; appendix narrow; sometimes with white wax patch in middle of costal margin. Fore femur with intercalary row (IC) arcuate with fine setae, one long, stout anteromedian seta (AM1) in line with row IC; anterior ventral (AV) setae short and stout ( Fig. 56 ). Fore tibia with 5+5 or 1+5 or2+5 or 2+8 (in T. daii sp. nov. the formula may vary from 2+6 to 2+9) dorsal setal formula. Hind femora with apical setal formula 2+2+1 or 2+1+1; metabasitarsomere with one paired row of setae on plantar surface and four platellae on apical transverse row ( Fig. 82 ).

Male genitalia. Pygofer frequently with sclerotised apical lobe or internal ledge; lobes either smooth or with distal small sclerotized teeth or prolonged posteriorly or mesally with serrated margins. Subgenital plate elongate triangular shaped, with row of macrosetae, slightly irregular in basal part of plate. Style with apical process short, tapered to apex, some times subapical lobe long ( Fig. 52 ). Connective Y-shaped, with stem elongate, arms short. Aedeagus with shaft elongate, cylindrical, curved dorsally and tapered to apex, with lateral teeth or lateral spatulate expansion with toothed margin, atrium sometimes ventrally prolonged ( Fig. 38 ); gonopore apical on posterior surface; dorsal apodeme moderately long. Tenth segment large cylindrical, poorly sclerotized.

Female genitalia. First valvulae with strigate sculpture dorsally in distal half ( Figs 101 , 102 ). Second valvulae with toothed area in apical one third, subapical tooth present in basal half ( Figs 103, 104 ).

Tambocerus disparatus (Melichar) and Tambocerus plumbeus (Distant) were not studied. However, Zhang & Webb (1996) have illustrated the male genitalia and habitus of these species.

Figures

FIGURES 13–23. Variation in coloration of species of Tambocerus. 13–17. Tambocerus krameri sp. nov.: 13&14. Dorsal and lateral views of specimens from Chikkaballapura; 15&16. Dorsal and lateral views of specimens from Kanakapura; 17. Dorsal view of specimen from Sri Lanka. 18–23. Adults and nymphs of T. nilgiris sp. nov.: 18&19. Variation in color and form, dorsal view; 20. Lateral view; 21. Face; 22&23. Color variation in nymphs.

FIGURES 56–66. Tambocerus krameri sp. nov. 56. Fore femur, mesal view; 57–59. Variation in male pygofers, lateral view; 60–62. Variation in valve and subgenital plates, ventral view; 63–65. Variation in connectives, dorsal view; 66. Male pygofer, dorsal view. FIGURES 57, 60, 63. Specimen from Chikkaballapura; FIGURES 58, 61, 64. Specimen from Sri Lanka; FIG- URES 59, 62, 65. Specimen from Kanakapura.

FIGURES 77–85. Tambocerus nilgiris sp. nov.: 77. Male genital capsule, lateral view; 78. Pygofer, dorsal view; 79. Valve and subgenital plate, ventral view; 80. Style, dorsal view; 81. Connective, dorsal view; 82. Metabasitarsomere, ventral view; 83. Female seventh sternite, ventral view; 84. Aedeagus, posterior view; 85. Aedeagus, lateral view.

FIGURES 47–55. Tambocerus furcostylus sp. nov.: 47. Male pygofer, valve and subgenital plate, lateral view; 48. Apex of pygofer lobe, dorsal view; 49. Pygofer, dorsal view; 50. Valve and subgenital plate, ventral view; 51. Connective, dorsal view; 52. Style, dorsal view; 53. Aedeagus, lateral view; 54. Aedeagus, posterior view; 55. Female seventh sternite, ventral view.

FIGURES 32–39. Male genitalia of Tambocerus cholas sp. nov.: 32. Genital capsule, lateral view; 33. Apex of pygofer lobe, lateroventral view; 34. Pygofer, dorsal view; 35. Valve and subgenital plate, ventral view; 36. Style, dorsal view; 37. Connective and aedeagus, dorsal view; 38. Aedeagus, lateral view; 39. Aedeagus, posterior view.

FIGURES 95–101. Male genitalia of Tambocerus zahniseri sp. nov.: 95. Genital capsule, lateral view; 96. Pygofer, dorsal view; 97. Valve and subgenital plate, ventral view; 98. Connective, dorsal view; 99. Aedeagus, posterior view; 100. Aedeagus, lateral view; 101.Style, dorsal view.

FIGURES 102–106. Female T. viraktamathi Rao. 102. First pair of valvula, lateral view; 103. Magnified view of strigate area of first pair of valvula; 104. Second pair of valvulae, lateral view; 105. magnified view of toothed area of second pair of valvulae. 106. Female on Acacia catechu Willd. plant.