FIGURES 16–23. Sogana species. 16–18. S in A review of the Oriental planthopper genus Sogana Matsumura 1914 (Hemiptera: Fulgoromorpha: Tropiduchidae) with descriptions of three new species

FIGURES 16–23. Sogana species. 16–18. S. robustocarina sp. nov. (♂, holotype). 16. head, pronotum and mesonotum (dorsal view); 17. head (ventral view); 18. head, pronotum and mesonotum (lateral view). 19–22. fore wing. 19. S. clara sp. nov. (♂, holotype). 20. S. hopponis Matsumura (♂). 21. S. pseudohopponis sp. nov. (♂, holotype). 22. S. robustocarina sp. nov. (♂, holotype). 23. hind wing. S. pseudohopponis sp. nov. (♂, holotype).