Okubasca paracalvata Yu & Yang, 2019

Yu, Xiaofei & Yang, Maofa, 2019, Okubasca Dworakowska (Hemiptera: Cicadellidae: Typhlocybinae: Empoascini) elevated to separate genus status with description of two new species from China, Zootaxa 4609 (2), pp. 395-400 : 398

Okubasca paracalvata Yu & Yang , sp. nov.

( Figs 18–34 )

Type materials. Holotype . Male, Shiqian , Guizhou Province, 10. August. 2011, coll. Qiongzhang Song and Fangling Xu. Paratype. 1 male, the same data as holotype .

Description. Length. Male 3.8mm.

Body yellowish ( Figs 18, 19, 20 ). Median length of vertex more than 1/2 width between eyes. Crown about as wide as pronotum. Coronal suture brownish, almost reaching apex of vertex, eyes brownish ( Figs 18, 19 ). Eyes brownish, middle length of vertex more than 1/2 width of eyes ( Figs 18, 21 ). Face yellowish, convex in lateral view, without patches ( Figs 19, 20, 22, 23 ). Pronotum with irregular yellow stripes and a big median yellow patch at anterior margin, remainder yellow ( Figs 18, 21 ). Scutellum almost white yellowish, scutoscutellar sulcus brownish ( Fig 21 ).

Basal sternal abdominal apodemes reaching middle of segment IV ( Fig 26 ). Male pygofer triangular, ventral margin involute and bearing ca. 3 rigid microsetae, posterior margin with 5–6 rigid microsetae, ventral pygofer appendage short, tapered ( Figs 27, 29 ), dorsal bridge less than 1/3 length of pygofer ( Fig 29 ). Subgenital plate elongate, gradually narrowed from base apicad, bearing ca. 40 group B setae, with 11 group C setae arranged in two rows, few group D setae, pigmented apically ( Fig 28 ). Paramere slender, with 7 setae subapically followed by 5 micro-teeth ( Fig 30 ). Aedeagus robust, beyond ventral margin of pygofer side, preatrium short, dorsal apodeme undeveloped, shaft curved to dorsal view and tubular, with base broad then gradually narrowed in lateral view and a longitudinal keel and dorsally on shaft ( Figs 31, 32 ). Anal tube process elongated, apex pointed ( Fig 33 ). Connective longer than wide, broad at base ( Fig 34 ).

Remarks. Okubasca paracalvata mainly differs from O. calva t a by aedeagus shaft with longitudinal keel and dorsally on shaft; anterior margin of vertex rounded ( Fig 21 ).

Etymology. The species name refers to the similarity of the aedeagus to Okubasca calvata .

Distribution. China (Guizhou).

Figures

FIGURES 18–34.Okubasca paracalvata Yu & Yang, sp. nov., 18. Whole body, dorsal view; 19. Whole body, ventral view; 20. Whole body, lateral view; 21. Head and thorax, dorsal view; 22. Face; 23. Head and thorax, lateral view; 24. Forewing; 25. Hindwing; 26. Abdominal apodemes, ventral view; 27. Male terminalia, lateral view; 28. Subgenital plate,ventral view; 29. Pygofer side, dorsal view; 30. Paramere, lateral view; 31. Aedeagus, lateral view; 32. Aedeagus, dorsal view; 33. Anal tube process, lateral view; 34. Connective. Scale bars: 18–25 (0.5 mm); 26–34 (0.1 mm).