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The Planthopper Genus Sogana Matsumura, 1914 in Vietnam: Two new species, (Hemiptera: Fulgoromorpha: Tropiduchidae)

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The taxonomists from Vietnam National Museum of Nature and Royal Belgian Institute of Natural Sciences are described two new species of the planthopper genus Sogana Matsumura, 1914, family Tropiduchidae, order Hemiptera. Two new species of Sogana Matsumura, 1914: Sogana bachmana Constant & Pham, 2019 from Bach Ma National Park in Central Vietnam, with body length: ♂ (n = 1): 10.2 mm; and Sogana baviana Constant & Pham, 2019 from Ba Vi National Park in North Vietnam, with body length: ♂ (n = 1): 11.7 mm are described.

The family Tropiduchidae contains about 660 species according to the FLOW database (Fulgoromorpha Lists On the Web – BOURGOIN, 2019), representing less than 5 % of the species of Fulgoromorpha. The Vietnamese Tropiduchidae currently includes 18 species, which is much more than Cambodia (2 species) or Thailand (4), but less than China (48) (BOURGOIN, 2019).

The genus Sogana now contains 13 species:
SPECIES INCLUDED (TYPE LOCALITY)

  1. Sogana bachmana Constant & Pham, 2019 (Vietnam)
  2. Sogana baviana Constant & Pham, 2019 (Vietnam)
  3. Sogana chartieri Constant, 2019 (Cambodia)
  4. Sogana clara Liang & Wang, 2008 (Laos)
  5. Sogana condaoana Constant & Pham, 2013 (Vietnam)
  6. Sogana cucphuongana Constant & Pham, 2013 (Vietnam)
  7. Sogana extrema Melichar, 1914 (Myanmar)
  8. Sogana floreni Constant, 2010 (Borneo)
  9. Sogana hopponis Matsumura, 1914 (Taiwan)
  10. Sogana longiceps Fennah, 1978 (Vietnam)
  11. Sogana pseudohopponis Liang & Wang, 2008 (Laos)
  12. Sogana robustocarina Liang & Wang, 2008 (Borneo)
  13. Sogana stimulata Melichar, 1914 (Mentawai Islands)

The result has been published on Belgian Journal of Entomology 85: 1–19 (2019).

ray dau dai 1

Fig. 1. Sogana bachmana  Constant & Pham, 2019, holotype ♂ . A, habitus dorsal view. B, habitus, ventral view. C, habitus, perpendicular view of frons. D, habitus, lateral view. E, right tegmen. F, frons, normal view right posterior wing. G, head and thorax, dorsal view. H, head and thorax, lateral view. I, head and thorax, laterodorsal view.

ray dau dai 2

Fig. 2. Sogana baviana  Constant & Pham, 2019, holotype ♂ . A, habitus dorsal view. B, habitus, ventral view. C, habitus, normal view of frons. D, habitus, lateral view. E, right tegmen. F, right posterior wing. G, head and thorax, lateral view. H, frons, perpendicular view. I, head and thorax, dorsal view. J, head and thorax, laterodorsal view.


Pham Hong Thai
Vietnam National Museum of Nature

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