Eponisiella Emeljanov, 1984

Lv, Sha-sha, Yang, Lin & Chen, Xiang-Sheng, 2021, Two new species of the planthopper genus Eponisiella Emeljanov from China (Hemiptera, Fulgoromorpha, Meenoplidae), European Journal of Taxonomy 767, pp. 83-93 : 84-85

Genus Eponisiella Emeljanov, 1984

Eponisiella Emeljanov, 1984: 481 .

Eponisiella – Tsaur et al. 1986: 98. — Rahman et al. 2014: 326.

Type species Eponisiella guttulinervis (Matsumura, 1914) , designated by Tsaur et al. 1986. (= Nisia paludicola Vilbaste, 1968 ,

original designation, synonymized by Tsaur et al. 1986).

Diagnosis

Body very small. Head concave apically with a stripe medially. Vertex with two posterolateral areolets at base. Lateral carinae of frons ending at frontoclypeal suture strongly convergent apically. Lateral carinae of postclypeus absent. Pronotum without carina, mesonotum with a weak median carina. Tegmina broadened apically with blackish markings, MP 1+2 not branched. Wings with RP not forked. Metatibiotarsal formula: (3+5)-7-5. Male genitalia with pygofer strongly produced in a dorsocaudal angle in lateral view; in caudoventral view, strongly concave medially, each side with a finger-like process with hairs lateroapically.

Distribution

Japan, Russia, Korea, China ( Taiwan, Hubei, Jiangsu, Guizhou, Shandong) ( Fig. 21 ).

Key to species of the genus Eponisiella Emeljanov, 1984

1. Tegmina with only longitudinal veins darkened, without transverse brown band ........................... 2

– Tegmina with longitudinal veins darkened and transverse brown band ........................................... 3

2. Frons and clypeus with blurred longitudinal stripe ................................... E. casta Emeljanov, 1987

– Frons pale yellow and clypeus brown, longitudinal stripe absent ( Rahman et al. 2014: fig. 2c) ....... ......................................................................................................... E. andonga Rahman et al., 2014

3. Tegmina with two transverse brown bands apically ......................................................................... 4

– Tegmina with three transverse brown bands apically ....................................................................... 6

4. CuA vein of tegmina without a long brown stripe; only a short brown stripe on longitudinal median vein (MP) before branching ( Fennah 1956: fig. 9e) ............................ E. suisapana ( Fennah, 1956)

– CuA vein of tegmina with a long brown stripe; a long brown stripe on longitudinal median vein (MP) before branching, and a short brown stripe on longitudinal median vein after branching ............... 5

5. Inner side of gonostyli ( Fig. 10 ) concave medially producing an angular production; anal tube ( Fig. 10 ) with bifurcate curved hooks at apex in lateral view; lower part of aedeagus ( Figs 10, 12 ) bifurcate at apex ............................................................................................ E. dafangensis sp. nov.

– Inner side of gonostyli medially without an angular production; anal tube without curved hooks at apex in lateral view; lower part of aedeagus not bifurcate at apex ( Hu & Yang 1993: fig. 2) ............ ............................................................................................................. E. gramina Hu & Yang, 1993

6. Gonostyli with three bumps near middle in caudoventral view; aedeagus bifurcate ( Tsaur et al. 1986: fig. 10g –h) ...................................................................................... E. matsumurai Tsaur et al., 1986

– Gonostyli with one or two bumps near middle in caudoventral view; aedeagus trifurcate .............. 7

7. Gonostyli with one bump near middle in caudoventral view; anal tube subapically with two productions, bifurcate at apex in lateral view ............................ E. guttulinervis (Matsumura, 1914)

– Gonostyli ( Fig. 19 ) with two bumps near middle and third in caudoventral view; anal tube ( Fig. 18 ) subapically with two productions, not bifurcate at apex in lateral view ............................................ ................................................................................................................... E. shandongensis sp. nov.

Figures

Fig 21. Geographic distribution of species of Eponisiella Emeljanov, 1984.

Figs 5–12. Eponisiella dafangensis sp. nov., ♂, holotype (IEGU). 5. Head and thorax, dorsal view. 6. Frons, ventral view. 7. Anal tube, dorsal view. 8. Tegmina. 9. Wing. 10. Pygofer, lateral view. 11. Gonostyli and pygofer, caudoventral view. 12. Aedeagus, left lateral view. Scale bars: 5–7, 10– 12 = 0.2 mm; 8–9 = 0.5 mm.

Figs 13–20. Eponisiella shandongensis sp. nov., ♂, holotype (IEGU). 13. Head and thorax, dorsal view. 14. Frons, ventral view. 15. Anal tube, dorsal view. 16. Tegmina. 17. Wing. 18. Pygofer, lateral view. 19. Gonostyli and pygofer, caudoventral view. 20. Aedeagus, left lateral view. Scale bars: 13–15, 18–20 = 0.2 mm; 16–17 = 0.5 mm.