Ricanula, Schmidt, 1912

Zhang, Huan, Wang, Wen-Qian, Stroiński, Adam & Qin, Dao-Zheng, 2021, Two new species and a new combination in the genus Ricanula Melichar, 1898 for Ricaniidae from China (Hemiptera: Fulgoromorpha), Zootaxa 5047 (3), pp. 353-369 : 355

Key to species of Ricanula from China (excluding male of R. hainanensis and female of R. pulverosa )

1. Postero-apical part of tegmen with one eyes-spot black cell ( Fig. 1E )............................................ 2

- Postero-apical part of tegmen with two eyes-spot black cells ( Fig. 7B )........................................... 6

2. Male: upper part of periandrium apically with membranous processes oriented basad; aedeagus with two pairs of dorsal processes.............................................................................................. 3

- Female............................................................................................. 4

3. Apical part of anal tube (in lateral view) distinctly widened; internal part of dorsal processes of aedeagus distinctly shorter than lateral, curved and massive.......................................................... R. cacaonis (Chou et Lu)

- Apical part of anal tube (in lateral view) not widened; internal part of dorsal processes of aedeagus a bit shorter than lateral, narrow and long................................................................... R. fujianensis Ren et al.

4. Pregenital sternite: posterior margin medially without process............................... R. fujianensis Ren et al.

- Pregenital sternite: posterior margin medially with one strong process............................................ 5

5. Pregenital sternite: anterior margin medially almost straight................................ R. cacaonis (Chou et Lu)

- Pregenital sternite: anterior margin medially shallowly concave............................. R. hainanensis Ren et al.

6. Male............................................................................................... 7

- Female............................................................................................ 10

7. Aedeagus with two pairs of processes..................................................................... 8

- Aedeagus with one pair of processes........................................................ R. unica Ren et al.

8. Aedeagus with two pairs of dorsal processes.................................................. R. pulverosa (Stål)

- Aedeagus with one pair of dorsal and one pair of ventral processes.............................................. 9

9. Ventral processes of aedeagus arcuate ( Fig. 6E )................................................ R. curva sp. nov.

- Ventral processes of aedeagus strongly sinuate ( Fig. 9G )....................................... R. peronata sp. nov.

10. Pregenital sternite: median portion of posterior margin with small incision.......................... R. unica Ren et al.

- Pregenital sternite: median portion of posterior margin with two processes....................................... 11

11. Pregenital sternite: margin between processes with strong and deep incision.......................... R. curva sp. nov.

- Pregenital sternite: margin between processes with wide and shallow incision...................... R. peronata sp. nov.

Figures

FIGURE 1. Ricanula cacaonis (Chou & Lu, 1977), n. comb. A, habitus, dorsal view; B, same, lateral view; C, frons and clypeus, frontal view; D, anterior part of body, dorsal view; E, tegmen, dorsal view; F, wing, dorsal view; G, Labels of the holotype. Scale bars = 1.0 mm (Figs A, B, E); 0.50 mm (Figs C, D, F).

FIGURE 6. Ricanula curva sp. nov. A–C: phallic complex; D–F: periandrium; G–I: aedeagus. A, D, G, lateral view; B, E, H, dorsal view; C, F, I, ventral view. Scale bars = 0.20 mm (A–F); 0.50 mm (G–I).

FIGURE 7. Ricanula peronata sp. nov. A, habitus, dorsal view; B, same, lateral view; C, anterior part of body, dorsal view; D, frons and clypeus, frontal view; E, tegmen, dorsal view; F, wing, dorsal view. Scale bars = 1.0 mm (Figs A, B, E); 0.50 mm (Figs C, F); 0.20 mm (Fig. D).

FIGURE 9. Ricanula peronata sp. nov. A–C: phallic complex; D–F: periandrium; G–I: aedeagus. A, D, G, lateral view; B, E, H, dorsal view; C, F, I, ventral view. Scale bars = 0.20 mm (Figs A–I).