Taxonomic review of the leafhopper genus Grammacephalus Haupt (Hemiptera: Cicadellidae: Deltocephalinae: Scaphoideini) with description of a new species from Pakistan Author Shah, Bismillah Author Naveed, Hassan Author Duan, Yani text Zootaxa 2019 2019-10-21 4688 1 71 85 journal article 25185 10.11646/zootaxa.4688.1.3 4e8a23e4-7372-4ca1-a48b-58bb75433f4b 1175-5326 3514828 6A91548F-0C20-4711-950A-11ED5B007BA1 Key to species of Grammacephalus Haupt 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 )................................................ Grammacephalus genoicus - Male pygofer process present ( Figs 1B , 2D , 4B , 5E , 6 C–F, 8B, 9C, 10C, 12A)..................................... 2 2. Male pygofer process serrate ( Figs 6 C–F, 10C).............................................................. 3 - Male pygofer process not serrate ( Figs 1B , 2D , 4B , 5E , 8B , 9C , 12A )............................................ 4 3. Apex of subgenital plate notched, dorsally upturned ( Fig. 6G ); aedeagal shaft with an apical keel in lateral view ( Fig. 6I )..................................................................................... Grammacephalus kempi - Apex of subgenital plate entire flat ( Fig. 10D ); aedeagal shaft with median expansion laterally, without apical keel in lateral view ( Fig. 10F ).................................................................... Grammacephalus raunoi 4. Male pygofer process with bifurcated apex ( Figs 2D , 12A, B ).................................................. 5 - Male pygofer process without apical bifurcation ( Figs 1B , 4B , 5E , 8B , 9C )....................................... 6 5. Subgenital plate with lateral margins slightly incurved at midlength ( Fig. 2F ); aedeagal shaft strongly reflexed basally with pair of short dorsal processes at apex ( Figs 2H, I )........................................... Grammacephalus furcatus - Subgenital plate with lateral margins not incurved at midlength ( Fig. 12D ); aedeagal shaft moderately reflexed basally without appendages ( Figs 12 E–G)................................................... Grammacephalus punjabensis sp.n. 6. Aedeagal shaft with subapical curve in lateral view ( Fig. 4C )................................. Grammacephalus pugio - Aedeagal shaft without subapical curve in lateral view ( Figs 1C , 4E , 5L , 8G , 9F )................................... 7 7. Aedeagal shaft not reflexed in lateral view ( Figs 4E , 9F )...................................................... 8 - Aedeagal shaft somewhat reflexed in lateral view ( Figs 1C , 5L , 8G )............................................. 9 8. Male pygofer process pointed with long subapical spur on dorsal surface ( Fig. 4D ); aedeagal shaft long and narrowly bladeshaped in lateral view ( Fig. 4E )...................................................... Grammacephalus harpago - Male pygofer process without subapical spur dorsally ( Fig. 9C ); aedagal shaft tubular and tapered towards apex ( Fig. 9F, G )................................................................................ Grammacephalus rahmani 9. Aedeagal shaft strongly reflexed basally, broadened and rounded apically ( Figs 8G, H ).......... Grammacephalus pallidus - Aedeagal shaft not strongly reflexed basally (1C, 5L)........................................................ 10 10. Male pygofer process with slight inward curve near apex ( Fig. 5E ); style apophysis digitate (Fig. H); aedeagal shaft apex acutely tapered in posterior view ( Figs 5K ).............................................. Grammacephalus indicus - Male pygofer process with slight ventral curve near apex ( Fig. 1B ); style apophysis smooth ( Fig. 1E ); aedeagal shaft bifid apically in posterior view ( Fig. 1D ).................................................... Grammacephalus acuticeps