Sichuana Shen & Yin, 2020

Gu, Jun-Jie, Zheng, Chengjie, Jiang, Su-Rong & Yue, Yanli, 2023, Phylogeny of genus Sichuana Shen & Yin, 2020 (Orthoptera, Tettigoniidae, Tettigoniinae) with four new species from Sichuan, China, Deutsche Entomologische Zeitschrift 70 (2), pp. 337-355 : 337

Genus Sichuana Shen & Yin, 2020

Emended diagnosis.

Differs from all other Drymadusini genera in China by its male cercus being strongly incurved at or after its middle with acute apex, with a basal inner tooth (Figs 2 , 6 , 9 , 12 ); median carina faintly indicated in prozona and absent in metazona; male tegmen about twice as long as pronotum; and female tegmen equal to or slightly longer than pronotum. Furthermore, Sichuana differs from Uvarovina Ramme, 1939, Ptosoproctus Shen, Yin & He, 2021, and Eulithoxenus Bey-Bienko, 1951 by its prosternum with a pair of spines (Figs 4 , 8 , 11 , 14 ). Differs from Atlanticus Scudder, 1894, Eulithoxenus , Ptosoproctus , and Uvarovina by its ovipositor being decurved (Figs 2 , 6 , 9 , 12 ). Differs from Atlanticus , Eulithoxenus , Mongolodectes Bey-Bienko, 1951, Paratlanticus Ramme, 1939, Ptosoproctus , and Uvarovina by its lateral carina being distinct in metazona and faintly indicated on prozona (Figs 2 , 6 , 9 , 12 ). Differs from Kansua Uvarov, 1933, Paratlanticus , Ceraeocercus Uvarov, 1910 by dorsal side of protibia only with external spurs, and dorsal side of mesotibia with spurs on both sides. Differs from Kansua Uvarov, 1933 by its smooth pronotum ( Heller and Liu 2016; Liu 2013; Liu 2015; Liu et al. 2019; Shen et al. 2021).

Type species.

Sichuana cryptospina Shen & Yin, 2020.

Figures

Figure 2. A-D. Body of Sichuana planicercata sp. nov. A, B. Male holotype; C, D. Female paratype; A, C. Dorsal view; B, D. Lateral view; E. Male terminal abdomen with artificially unfurled cerci in dorsal view for showing inner tooth; F. Male terminal abdomen in dorsal view; G. Female terminal abdomen in dorsal view; H. Male terminal abdomen in lateral view; I. Male left tegmen in lateral view.

Figure 4. Sichuana planicercata sp. nov. A-C. Male subgenital plate; D. Female subgenital plate; E. Thorax in ventral view; F. Titillator; G. Stridulatory file on underside of male left tegmen.

Figure 6. A-D. Body of Sichuana curvicercata sp. nov. A, B. Male holotype; C, D. Female paratype; A, C. Dorsal view; B, D. Lateral view; E. Male terminal abdomen with artificially unfurled cerci in dorsal view for showing inner tooth; F. Male terminal abdomen in dorsal view; G. Female terminal abdomen in dorsal view; H. Male terminal abdomen in lateral view; I. Male left tegmen in lateral view.

Figure 8. Sichuana curvicercata sp. nov. A-C. Male subgenital plate; D. Female subgenital plate; E. Thorax in ventral view; F. Titillator; G. Stridulatory file on underside of male left tegmen.

Figure 9. A-D. Body of Sichuana longilamina sp. nov. A, B. Male holotype; C, D. Female paratype; A, C. Dorsal view; B, D. Lateral view; E. Male terminal abdomen with artificially unfurled cerci in dorsal view for showing inner tooth; F. Male terminal abdomen in dorsal view; G. Female terminal abdomen in dorsal view; H. Male terminal abdomen in lateral view; I. Male left tegmen in lateral view.

Figure 11. Sichuana longilamina sp. nov. A. Thorax in ventral view; B. Female subgenital plate; C. Male subgenital plate; D. Titillator; E. Stridulatory file on underside of male left tegmen.

Figure 12. A-D. Body of Sichuana magnicerca sp. nov. A, B. Male holotype; C, D. Female paratype; A, C. Dorsal view; B, D. Lateral view; E. Male terminal abdomen with artificially unfurled cerci in dorsal view for showing inner tooth; F. Male terminal abdomen in dorsal view; G. Female terminal abdomen in dorsal view; H. Male terminal abdomen in lateral view; I. Male left tegmen in lateral view.

Figure 14. Sichuana magnicerca sp. nov. A-C. Male subgenital plate; D. Female subgenital plate; E. Thorax in ventral view; F. Titillator; G. Stridulatory file on the underside of the male left tegmen.