Grammacephalus Haupt, 1929

Shah, Bismillah, Naveed, Hassan & Duan, Yani, 2019, Taxonomic review of the leafhopper genus Grammacephalus Haupt (Hemiptera: Cicadellidae: Deltocephalinae: Scaphoideini) with description of a new species from Pakistan, Zootaxa 4688 (1), pp. 71-85 : 72-73

publication ID	https://doi.org/10.11646/zootaxa.4688.1.3
publication LSID	lsid:zoobank.org:pub:6A91548F-0C20-4711-950A-11ED5B007BA1
DOI	https://doi.org/10.5281/zenodo.3691801
persistent identifier	https://treatment.plazi.org/id/03B287C3-FF8B-FF8F-FF65-C478FA79F0B5
treatment provided by	Plazi (2019-10-21 10:32:27, last updated 2024-11-29 15:49:38)
scientific name	Grammacephalus Haupt
status

Treatment

Key to species of Grammacephalus Haupt View in CoL

The following species were described based on female specimens and are therefore omitted from the key: G. minabicus and G. niveimarginatus .

1. Male pygofer process absent ( Fig. 3B View FIGURE 3 )................................................ Grammacephalus genoicus View in CoL

- Male pygofer process present ( Figs 1B View FIGURE 1 , 2D View FIGURE 2 , 4B View FIGURE 4 , 5E View FIGURE 5 , 6 View FIGURE 6 C–F, 8B, 9C, 10C, 12A)..................................... 2

2. Male pygofer process serrate ( Figs 6 View FIGURE 6 C–F, 10C).............................................................. 3

- Male pygofer process not serrate ( Figs 1B View FIGURE 1 , 2D View FIGURE 2 , 4B View FIGURE 4 , 5E View FIGURE 5 , 8B View FIGURE 8 , 9C View FIGURE 9 , 12A View FIGURE 12 )............................................ 4

3. Apex of subgenital plate notched, dorsally upturned ( Fig. 6G View FIGURE 6 ); aedeagal shaft with an apical keel in lateral view ( Fig. 6I View FIGURE 6 )..................................................................................... Grammacephalus kempi View in CoL

- Apex of subgenital plate entire flat ( Fig. 10D View FIGURE 10 ); aedeagal shaft with median expansion laterally, without apical keel in lateral view ( Fig. 10F View FIGURE 10 ).................................................................... Grammacephalus raunoi View in CoL

4. Male pygofer process with bifurcated apex ( Figs 2D View FIGURE 2 , 12A, B View FIGURE 12 ).................................................. 5

- Male pygofer process without apical bifurcation ( Figs 1B View FIGURE 1 , 4B View FIGURE 4 , 5E View FIGURE 5 , 8B View FIGURE 8 , 9C View FIGURE 9 )....................................... 6

5. Subgenital plate with lateral margins slightly incurved at midlength ( Fig. 2F View FIGURE 2 ); aedeagal shaft strongly reflexed basally with pair of short dorsal processes at apex ( Figs 2H, I View FIGURE 2 )........................................... Grammacephalus furcatus View in CoL

- Subgenital plate with lateral margins not incurved at midlength ( Fig. 12D View FIGURE 12 ); aedeagal shaft moderately reflexed basally without appendages ( Figs 12 View FIGURE 12 E–G)................................................... Grammacephalus punjabensis View in CoL sp.n.

6. Aedeagal shaft with subapical curve in lateral view ( Fig. 4C View FIGURE 4 )................................. Grammacephalus pugio View in CoL

- Aedeagal shaft without subapical curve in lateral view ( Figs 1C View FIGURE 1 , 4E View FIGURE 4 , 5L View FIGURE 5 , 8G View FIGURE 8 , 9F View FIGURE 9 )................................... 7

7. Aedeagal shaft not reflexed in lateral view ( Figs 4E View FIGURE 4 , 9F View FIGURE 9 )...................................................... 8

- Aedeagal shaft somewhat reflexed in lateral view ( Figs 1C View FIGURE 1 , 5L View FIGURE 5 , 8G View FIGURE 8 )............................................. 9

8. Male pygofer process pointed with long subapical spur on dorsal surface ( Fig. 4D View FIGURE 4 ); aedeagal shaft long and narrowly bladeshaped in lateral view ( Fig. 4E View FIGURE 4 )...................................................... Grammacephalus harpago View in CoL

- Male pygofer process without subapical spur dorsally ( Fig. 9C View FIGURE 9 ); aedagal shaft tubular and tapered towards apex ( Fig. 9F, G View FIGURE 9 )................................................................................ Grammacephalus rahmani View in CoL

9. Aedeagal shaft strongly reflexed basally, broadened and rounded apically ( Figs 8G, H View FIGURE 8 ).......... Grammacephalus pallidus View in CoL

- Aedeagal shaft not strongly reflexed basally (1C, 5L)........................................................ 10

10. Male pygofer process with slight inward curve near apex ( Fig. 5E View FIGURE 5 ); style apophysis digitate (Fig. H); aedeagal shaft apex acutely tapered in posterior view ( Figs 5K View FIGURE 5 ).............................................. Grammacephalus indicus View in CoL

- Male pygofer process with slight ventral curve near apex ( Fig. 1B View FIGURE 1 ); style apophysis smooth ( Fig. 1E View FIGURE 1 ); aedeagal shaft bifid apically in posterior view ( Fig. 1D View FIGURE 1 ).................................................... Grammacephalus acuticeps View in CoL

Figures

FIGURE 1. Grammacephalus acuticeps Linnavuori. (after Linnavuori, 1978) A: head, dorsal view; B: male pygofer side lobe, lateral view; C: aedeagus, lateral view; D: apex of aedeagus, ventral view; E: apophysis of style, dorsal view.

FIGURE 2. Grammacephalus furcatus Dai & Zhang. (after Dai & Zhang, 2006) A: head and thorax, dorsal view; B: face; C: forewing; D: male pygofer, lateral view; E: male pygofer, ventral view; F: valve and subgenital plate, ventral view; G: style, dorsal view; H: connective and aedeagus, ventral view; I: connective and aedeagus, lateral view.

FIGURE 3. Grammacephalus genoicus Dlabola. (after Khatri & Webb, 2010) A: head and thorax, dorsal view; B: male pygofer, lateral view; C: valve, subgenital plate, style and connective, dorsal view; D: male pygofer, dorsal view; E: connective, dorsal view; F: aedeagus, dorsal view; G: aedeagus, lateral view.

FIGURE 4. A–C: Grammacephalus pugio (Noualhier). A: head and pronotum; B: male pygofer side lobe; C: aedeagus, lateral view. D, E: Grammacephalus harpago Linnavuori. D: appendage of male pygofer; E: aedeagus, lateral view. F, G: Grammacephalus niveimarginatus (Melichar). F, G: female 7th sternite. (after Linnavuori, 1978).

FIGURE 5. Grammacephalus indicus Viraktamath. (after Khatri & Webb, 2010) A: head and thorax, dorsal view; B: face; C: forewing; D: apex of female abdomen, ventral view; E, F: male pygofer, lateral and dorsal view respectively; G, H: style and apex of style, respectively; I: valve, subgenital plate, style and connective, dorsal view; J: connective, dorsal; K–M: aedeagus, dorsal view, lateral view and ventral view respectively; N: first valvulae; O: the second valvulae.

FIGURE 6. Grammacephalus kempi (Pruthi). (after Viraktamath, 1981) A: head and thorax; B: female abdominal end, ventral view; C: male pygofer, lateral view, lectotype; D: male pygofer paralectotype at lateral; E: male pygofer, lectotype, dorsal process; F: male pygofer, paralectotype, caudal process; G: valve and subgenital plate, ventral view; H: style and connective; I: aedeagus, lateral view; J: aedeagus, caudal view.

FIGURE 8. Grammacephalus pallidus Linnavuori. (after Viraktamath, 1981) A: head and thorax, dorsal view; B: male pygofer, lateral view; C: male pygofer process; D: subgenital plate, ventral view; E: style, dorsal view; F: connective, dorsal view; G: aedeagus, lateral view; H: apex of aedeagal shaft, dorsal view.

FIGURE 9. Grammacephalus rahmani (Singh Pruthi). (after Viraktamath, 1981) A: head and thorax; B: female genitalia; C: male pygofer and its process, lateral view; D: subgenital plate, ventral view; E: style and connective, dorsal view; F: aedeagus, lateral view; G: apex of aedeagal shaft.

FIGURE 10. Grammacephalus raunoi Viraktamath. (after Viraktamath, 1981) A. head and thorax; B: female genitalia; C: male pygofer and its process; D: subgenital plate, ventral view; E: style and connective; F: aedeagus, lateral view.

FIGURE 12. Grammacephalus punjabensis Shah & Duan sp. n. A: male pygofer, lateral view; B: male pygofer, dorsal view; C: anal tube, lateral view; D: subgenital plates, valve, style and connective, ventral view; E: connective and aedeagus, dorsal view; F: connective and aedeagus, lateral view; G: aedeagal shaft, ventral view.