Deltocephalus

Zhang, Yalin & Duan, Yani, 2011, Review of the Deltocephalus group of leafhoppers (Hemiptera: Cicadellidae: Deltocephalinae) in China, Zootaxa 2870, pp. 1-47 : 3

Key to species of the Deltocephalus from China (Males)

1. Style apophysis more than 0.33 total length of style ( Figs 1 A, 2E); apical margin of aedeagus entire ( Figs 1D , 2D )........ 2

- Style apophysis less than 0.33 total length of style ( Figs 3D , 4 E); apical margin of aedeagus notched ( Figs 3 E, 3G, 4G)..... 3

2. Aedeagal shaft with subapical ventral margin serrate ( Fig. 1 E)......................................... D. pulicaris

- Aedeagal shaft with subapical ventral margin smooth ( Fig. 2 B)...................................... D. nigriventris

3. Subgenital plate subtriangular ( Fig. 3 C); apex of aedeagal shaft directed dorsad, apical notch shallow ( Figs 3 E–H)..................................................................................................... D. vulgaris

- Subgenital plate wide triangle ( Fig. 4 C); apex of aedeagal shaft directed cephalad, apical notch deep ( Figs 4 G, 4H)............................................................................................. D. uncinatus sp. nov.

Figures

FIGURE 1. D. pulicaris (Fallén). A: style, dorsal view; B: subgenital plate, ventral view; C: valve, ventral view; D & E: aedeagus and connective, dorsal and lateral view.

FIGURE 2. D. nigriventris Kuoh (after Kuoh, 1985). A: female seventh sternum, ventral view; B: aedeagus, lateral view; C: valve and subgenital plates, ventral view; D: aedeagus and connective, dorsal view; E: style, dorsal view.

FIGURE 3. D. vulgaris Dash & Viraktamath. A: male pygofer lobe, lateral view; B: valve, ventral view; C: subgenital plate, ventral view; D: style, dorsal view; E & G: aedeagus and connective, dorsal view; F & H: aedeagus and connective, lateral view.

FIGURE 4. D. uncinatus sp. nov. A: head and thorax, dorsal view; B: male pygofer lobe, lateral view; C: subgenital plate, ventral view; D: sternal apodemes at base of abdomen; E: style, dorsal view; F: valve, ventral view; G & H: aedeagus and connective, dorsal and lateral view.