Catonidia Uhler, 1896

Lv, Sha-Sha, Long, Jian-Kun, Yang, Lin & Chen, Xiang-Sheng, 2024, Four new species of the planthopper genus Catonidia Uhler, 1896 from China (Hemiptera: Fulgoromorpha: Achilidae), European Journal of Taxonomy 943, pp. 127-143 : 130

Key to species of the genus Catonidia Uhler, 1896

1. Anterior margin of vertex angular or undulate ................................................................................. 2

– Anterior margin of vertex rounded ................................................................................................... 8

2. Forewing milk-white ........................................................................................................................ 3

– Forewing yellowish brown ............................................................................................................... 5

3. Clavus of forewing with only a few small markings; mesonotum pale yellowish brown ( Chen & He 2009: fig. 13) .................................................................................................. C. lii Chen & He, 2009

– Clavus of forewing with large brown markings; mesonotum brown ............................................... 4

4. Clavus of forewing with a fuscous marking near apex; posterior margin of pronotum yellowish ( Wang et al. 1991: fig. 3a, c) ...................................................... C. emeiensis Wang & Huang, 1991

– Clavus apex ½ to costal margin with a broad brown marking ( Figs 13, 17 ); posterior margin of pronotum brown ( Figs 13, 15 ) .............................................................................. C. saccata sp. nov.

5. Anterior margin of vertex undulate ( Figs 36, 38 ); pronotum brown, posterior margin milk-white ( Figs 36, 38 ) ........................................................................................................ C. uncinata sp. nov.

– Anterior margin of vertex angular; color of pronotum uniform ....................................................... 6

6. Mesonotum with central area fuscous; anterior margin of forewing with eight arcuate dark markings ( Wang et al. 1990: fig. 2a–b) ................................................... C. fujianensis Wang & Huang, 1990

– Color of mesonotum not as above; forewing without above markings ............................................ 7

7. Mesonotum light yellowish brown at the top ⅓, ⅔ yellowish brown ( Figs 24, 26 ); veins of forewing yellowish brown ( Figs 24–25 ) ............................................................................ C. trilobata sp. nov.

– Mesonotum pale fulvous; veins of forewing pale .......................................... C. sobrina Uhler, 1896

8. Forewing without markings ( Wang et al. 1991: fig. 2c) ........ C. guadunensis Wang & Huang, 1991

– Forewing with markings ................................................................................................................... 9

9. Costal area of forewing with two fuscous markings near apical angle ( Wang et al. 1991: fig. 1c) ... ..................................................................................................... C. tibetensis Wang & Huang, 1991

– Costal area of forewing without above markings ........................................................................... 10

10. Medioventral process of pygofer concave at apex in ventral view ..................................................11

– Medioventral process of pygofer convex at apex in ventral view .................................................. 12

11. Forewing with a sinuate, broad, brown stripe from hind margin to apical angle; medioventral process relatively slender in ventral view ( Chen & He 2009: figs 3, 6) .......................................................... .............................................................................................. C. wuyishanana Wang & Huang, 1990

– Forewing without above markings; medioventral process stout in ventral view ( Chen et al. 1989: fig. 2d, g) ........................................................................ C. constricta ( Chen, Yang & Wilson, 1989)

12. Medioventral process of pygofer in ventral view triangular, lateral margins straight ( Fig. 8 ) ........... ............................................................................................................................ C. triangula sp. nov.

– Medioventral process of pygofer nearly rounded, lateral margins curved ..................................... 13

13. Posterior margin of pygofer with one broad process; dorsal lobe of phallobase stout and tooth-like ( Long & Chen 2012: figs 7, 11) ........................................................... C. choui Long & Chen, 2012

– Posterior margin of pygofer with two small processes; dorsal lobe of phallobase vestigial ( Chen & He 2009: figs 26, 30) .................................................................. C. daozhenensis Chen & He, 2009

Figures

Figs 13–23. Catonidia saccata sp. nov., ♂, holotype (IEGU). 13. Habitus, dorsal view. 14. Habitus, lateral view. 15. Head and thorax, dorsal view. 16. Frons, ventral view. 17. Forewing. 18. Hindwing. 19. Pygofer, lateral view. 20. Pygofer, ventral view. 21. Left gonostyli, inner surface. 22. Aedeagus, left lateral view. 23. Pygofer, dorsal view. Scale bars = 0.5 mm.

Figs 36–46. Catonidia uncinata sp. nov., ♂, holotype (IEGU). 36. Habitus, dorsal view. 37. Habitus, lateral view. 38. Head and thorax, dorsal view. 39. Frons, ventral view. 40. Forewing. 41. Hindwing. 42. Pygofer, lateral view. 43. Pygofer, ventral view. 44. Left gonostyli, inner surface. 45. Aedeagus, left lateral view. 46. Pygofer, dorsal view. Scale bars = 0.5 mm.

Figs 24–35. Catonidia trilobata sp. nov., ♂, holotype (IEGU). 24. Habitus, dorsal view. 25. Habitus, lateral view. 26. Head and thorax, dorsal view. 27. Frons, ventral view. 28. Forewing. 29. Hindwing. 30. Pygofer, lateral view. 31. Pygofer, ventral view. 32. Pygofer, dorsal view. 33. Aedeagus, left lateral view. 34. Aedeagus, right lateral view. 35. Left gonostyli, inner surface. Scale bars = 0.5 mm.

Figs 1–12. Catonidia triangula sp. nov., ♂, holotype (IEGU). 1. Habitus, dorsal view. 2. Habitus, lateral view. 3. Head and thorax, dorsal view.4. Frons, ventral view.5. Forewing.6. Hindwing.7. Pygofer, lateral view. 8. Pygofer, ventral view. 9. Pygofer, dorsal view. 10. Aedeagus, left lateral view. 11. Aedeagus, right lateral view. 12. Left gonostyli, inner surface. Scale bars = 0.5 mm.