Seriana bacilla, Tan & Yuan & Song, 2020

Tan, Chao, Yuan, Xiao-Wei & Song, Yue-Hua, 2020, New species and two new records of Erythroneurini from China (Hemiptera Cicadellidae, Typhlocybinae), Zootaxa 4728 (2), pp. 275-282 : 276

Seriana bacilla sp. nov. ( Figs 1–4 , 13–21 )

urn:lsid:zoobank.org:act:43AB07F5-7301-40D2-88B9-DCDFE6D20FCB

Description. Vertex milky yellow, with irregular black spot at anterior margin centrally; eyes black ( Figs 1, 3 ). Face yellowish, relatively short, with anteclypeus oval-shaped, basal triangles dark brown ( Fig. 4 ). Pronotum with five milky yellow oval impressed patches near anterior margin, symmetrically distributed ( Figs 1, 3 ). Scutellum brownish yellow, basal triangles dark brown ( Figs 1, 3 ). Forewing light brownish yellow, with slightly golden tint; hind wing semitransparent.

Abdominal apodemes small, not extended beyond the hind margin of 3rd sternite ( Fig. 13 ).

Male genitalia. Pygofer lobe basolateral setae in group, distinctly enlarged ( Fig. 14 ). Subgenital plate broadened sub-basally, provided with 4 long macrosetae on lateral surface, numerous peg-like setae along dorsal margin subbasally; several microsetae scattered on apical portion ( Fig. 15 ). Style long, preapical lobe obvious ( Fig. 16 ). Aedeagal shaft long and slim, slightly swollen sub-apically; gonopore large, at subapex, ventrad ( Figs 17, 18 ). Connecitve M-shaped ( Fig. 19 ).

Specimen examined. Holotype: ♂, CHINA, Guizhou Prov., Leishan , 23 IX 2005, coll. Yuehua Song. Para- types: 10♂♂, 11♀♀, CHINA, Guizhou Prov., Leishan, 23 IX 2005, coll. Yuehua Song; 5♂♂, 19♀♀, CHINA, Guizhou Prov., Duyun, 5 IX 2018, coll. Chao Tan.

Measurement. Body length ♂ 3.0~3.1 mm; ♀ 3.1 mm.

Remarks. This species is similar to S. dentata Sohi & Mann 1992 , but can be distinguished by the apex of style not shoe-shaped, but very similar to S. collina Dowrakowska, 1979 ; the dorsal apodeme small, truncated apically; the dorsal margin of aedeagal shaft smooth, without sawteeth; the connective stem vestigial, and the body size smaller.

Etymology. The specific name is derived from the Latin word “ bacillus ”, which refers to the long and slim aedeagal shaft.

Figures

FIGURES 1–12. Seriana bacilla sp. nov.—1 Habitus, dorsal view; 2 Habitus, lateral view; 3 Head and thorax, dorsal view; 4 Face; Empoascanara (E) gracilis Dworakowska, 1992—5 Habitus, dorsal view; 6 Habitus, lateral view; 7 Head and thorax, dorsal view; 8 Face; Tautoneura (T.) mayarami Mathew & Ramakrishnan, 1996—9 Habitus, dorsal view; 10 Habitus, lateral view; 11 Head and thorax, dorsal view; 12 Face.

FIGURES 13–21. Seriana bacilla sp. nov.—13 Abdominal apodemes; 14 Pygofer lobe, lateral view; 15 Subgenital plate; 16 Style; 17 Aedeagus, ventral view; 18 Aedeagus, lateral view; 19 Connective; 20 Pygofer dorsal appendage; 21 ♀5–7th sternite.