Grammacephalus species

Gnezdilov, Vladimir M., 2021, A new species of the genus Grammacephalus Haupt (Hemiptera: Auchenorrhyncha Cicadellidae: Deltocephalinae) from the United Arab Emirates, with a key to species of the genus known from the Arabian Peninsula, Zootaxa 4995 (2), pp. 396-400 : 399

Key to Grammacephalus species of the Arabian Peninsula

1. Crown 2.5 times as long as wide between the eyes ( Gnezdilov 2020a, figs 3, 13). Dorsum dark brown. Aedeagal shaft straight in lateral view ( Viraktamath 1981, figs 7, 35)............................................................... 2

-. Crown 1.3 times as long as wide between the eyes ( Fig. 1 ). Dorsum light greenish brown ( Figs 1, 2 ). Aedeagal shaft S-shaped in lateral view ( Fig. 6 )................................................................... G. albatus sp. nov.

2. Pygofer process with simple apex ( Gnezdilov 2020a, fig. 10).......................... G. rahmani (Singh Pruthi, 1930)

-. Pygofer process with an appendage....................................................................... 3

3. Pygofer process with an apical appendage ( Linnavuori 1978, fig. 13a)...................... G. pugio (Noualhier, 1895)

-. Pygofer process with a subapical appendage................................................................ 4

4. Pygofer process with subapical appendage more than half as long as process ( Viraktamath 1981, fig. 31).............................................................................................. G. raunoi Viraktamath, 1981

-. Pygofer process with subapical appendage less than half as long as process ( Linnavuori 1978, fig. 13b).............................................................................................. G. harpago Linnavuori, 1978

Figures

FIGURES 1–3. Grammacephalus albatus sp. nov., holotype. 1—dorsal view; 2—lateral view; 3—face. Total length of the specimen—4.0 mm.

FIGURES 4–11. Grammacephalus albatus sp. nov., 4–9—holotype, male genitalia, 10, 11—female paratype, sternite VII, ventral view. 4—anal tube and pygofer, lateral view; 5—genital valve and subgenital plates, ventral view; 6—aedeagus and connective, lateral view; 7—same, ventral view; 8—connective, dorsal view; 9—style, ventral view; 10—specimen from Dadna; 11—specimen from Wadi Wurayah.