Symplanella Fennah, 1987

Gnezdilov, Vladimir M., 2024, Revisionary notes on the genera Symplanella Fennah, 1987 and Pseudosymplanella Che, Zhang et Webb, 2009 (Hemiptera: Fulgoromorpha: Caliscelidae, Ommatidiotinae), with description of new subgenera and new species, Zootaxa 5543 (1), pp. 40-56 : 41-42

Genus Symplanella Fennah, 1987

Symplanella Fennah, 1987: 244 . Type species: Symplanella breviceps Fennah, 1987 , by original designation.

Diagnosis. Head short, with nearly square or elongate coryphe. Metope with median and sublateral carinae. Fore wings not narrowing, but widely rounded apically, with long clavus and a nodal line. Abdominal sternite II bearing apodemes ( Figs 11 , 22 ). Abdominal sternites IV–VI each with deep lateral furrows, apparently separating sternites and pleurites, not reaching its hind margins ( Figs 17 , 21 , lf). Endogonocoxal lobes fused in shape of large sclerotization of different shape ( Figs 13 , 31, 32 , GxL).

Composition and distribution. Ten species distributed in China, Vietnam, Myanmar, and Thailand.

Key to the subgenera and species of Symplanella

1. Metope narrow, twice longer than wide between eyes ( Fig. 3 ). Pronotum with narrow medial part and strongly acutely angulated anterior margin ( Fig. 1 ). Penis wide and flattened laterally, with short tubular apical part ( Figs 7, 8 ). Style with long and narrow caudo-dorsal angle and long neck; capitulum bearing finger shaped process apically ( Figs 9, 10 ). Symplanella s. str.................................................................................... S. (S.) breviceps Fennah, 1987

- Metope wider, 1.5 times as long medially as wide between eyes ( Fig. 16 ). Pronotum with wider medial part and less acutely angulated anterior margin ( Fig. 14 ). Penis rather narrow, not flattened laterally. Style of another structure. Bambunella subgen. nov................................................................................................. 2

2. Penis with two or four narrow and long or spine-shaped processes on the sides of aedeagal shaft....................... 3

- Penis without such processes............................................................................ 6

3. Coryphe slightly elongate ( Chen et al. 2014, fig. 2-102: C)...................... S. (B.) hainanensis Yang et Chen, 2014

- Coryphe almost square................................................................................. 4

4. Aedeagal shaft S-shaped in lateral view; hind margins of male pygofer with horn-shaped processes below anal tube ( Chen et al. 2014, fig. 2-101: I, M).......................................... S. (B.) brevicephala Chou, Yuan et Wang, 1994

- Aedeagal shaft not as above; hind margins of male pygofer with spine-shaped processes medially..................... 5

5. Penis with two long processes; male anal tube short ( Chen et al. 2014, fig. 2-104: H, M, N)................................................................................................ S. (B.) unipuncta Zhang et Wang, 2009

- Penis with four short processes; male anal tube elongate ( Chen et al. 2014, fig. 2-105: H, M, N)............................................................................................... S. (B.) zhongtua Yang et Chen, 2014

6. Male anal tube very short; penis strongly curved in lateral view ( Gong et al. 2020, figs 23, 27)............................................................................................... S. (B.) nigricans Gong et Chen, 2020

- Male anal tube elongate; penis of another shape............................................................. 7

7. Penis without processes, aedeagal shaft S-shaped in lateral view, ( Gnezdilov 2020, fig. 2)... S. (B.) yokdona Gnezdilov, 2020

- Penis of another shape................................................................................. 8

8. Penis with two large processes ventrally, aedeagal shaft strongly curved, U-shaped ( Figs 27, 28 )... S. (B.) cattiensis sp. nov.

- Penis without such processes, aedeagal shaft weakly curved................................................... 9

9. Aedeagal shaft with a large medial horn-shaped process ventrally; apex of anal tube not curved ( Gong et al. 2020, figs 9, 13, 14)........................................................................ S. (B.) fulva Gong et Chen, 2020

- Aedeagal shaft without process ventrally; apex of anal tube turned down ( Chen et al. 2014, fig. 2-103: I)........................................................................................ S. (B.) recurvata Yang et Chen, 2014

Figures

FIGURES 4–11. Symplanella (Symplanella) breviceps Fennah, 1987, male terminalia (Thailand, Chumphon Province). 4— pygofer and anal tube, lateral view; 5—pygofer, caudal view; 6—anal tube, dorsal view; 7—penis and connective, lateral view; 8—penis and connective, ventral view; 9—style, lateral view; 10—style, dorsal view; 11—left apodeme of sternite II. Not to scale.

FIGURES 21–30. Symplanella (Bambunella) cattiensis sp. nov., male terminalia (21, 23–30—holotype, 22—paratype). 21— abdominal sternites IV–VI; 22—left apodeme of sternite II; 23—pygofer, penis, and styles, ventral view; 24—pygofer and anal tube, lateral view; 25—anal tube, dorsal view; 26— penis, connective, and style, lateral view; 27—penis and styles, ventral view; 28—penis and connective, lateral view; 29—apex of aedeagal shaft, dorsal view; 30—style, dorsal view. Abbrevitations: ash—aedeagal shaft; lf—lateral furrow; vpp—ventral processes of penis; s—style. Not to scale.

FIGURES 14–17. Symplanella (Bambunella) cattiensis sp. nov. 14—male paratype, dorsal view; 15—same, lateral view; 16—same, frontal view; 17—female paratype, abdomen ventrally. Abbrevitation: lf—lateral furrow. Scale bar—1 mm.

FIGURES 12–13. Symplanella (Symplanella) breviceps Fennah, 1987, female terminalia (Thailand, Chumphon Province). 12—anal tube, ventral view; 13—sternite VII, gonocoxae VIII, and fused endogonocoxal lobes, ventral view. Abbrevitations: VII—sternite VII; Gx VIII—gonocoxa VIII; GxL—fused endogonocoxal lobes. Not to scale.

FIGURES 31–32. Symplanella (Bambunella) cattiensis sp. nov., paratype, female terminalia. 31—sternite VII, fused endogonocoxal lobes, and gonocoxae VIII; 32—fused endogonocoxal lobes. Abbrevitations: VII—sternite VII; Gx VIII— gonocoxa VIII; GxL—fused endogonocoxal lobes. Not to scale.

FIGURES 1–3. Symplanella (Symplanella) breviceps Fennah, 1987, male (Thailand, Chumphon Province). 1—dorsal view; 2—lateral view; 3—frontal view. Scale bar—1 mm.