Angustuma rudorsuma, Xing, Ji-Chun & Li, Zi-Zhong, 2013

Xing, Ji-Chun & Li, Zi-Zhong, 2013, New replacement name for Angustella Li, 1986 (Hemiptera: Cicadellidae: Evacanthinae: Evacanthini), with description of a new species, Zootaxa 3702 (4), pp. 386-390 : 388-390

Angustuma rudorsuma sp. nov.

Figs 1–10

Description. Body medium sized, color pattern of anterior dorsum as in Figs 1-4 , between male and female have not sexual dimorphism. Vertex with black marking on anterior margin. Pronotum orange, marked with black on anterior and posterior margin, and middle; scutellum orange, marked with black on both sides of the base angle. Frontoclypeus with black median longitudinal carina. Lorum without marking. Forewing brownish yellow, margin and veins black, end gray; hindwing gray.

Head anteriorly conically produced, median length longer than width between eyes, narrower than pronotum. Eyes fairly large, ocelli on anterior margin, separated from corresponding eye by approximately their own diameter. Antennae arising near lower corner of eye. Pronotum broad, anterior margin strongly and roundly produced, posterior margin slightly concave. Scutellum triangular, about as long as pronotum, with transverse suture curved and depressed. Forewings with four apical cells, appendix very narrow.

Male genitalia. Pygofer with elongate, slender, sinuate ventral process arising near base ( Fig 5 ). Subgenital plate elongate, expanded medially, macrosetae irregularly distributed, rows of elongate setae near submargin ( Fig 6 ). Aedeagus bulbous, aedeagal shaft in dorsal view gradually narrowed to truncate apex, ventral apophysis in lateral view broad and short, gonopore apical ( Figs 7, 8 ). Connective Y-shaped with stem longer than arms ( Fig 9 ).

Measurement. Length (including tegmen): ♂, 6.1–6.2mm; ♀, 6.5mm.

Type material. Holotype ♂, CHINA: Yunnan Prov., Jinping County, Fenshuiling, 7 August 2012, coll. Shiyan Xu ( GUGC); Paratypes: 1♀, same data as holotype; 1♂ 1♀, Yunnan Prov., Jinping County, Fenshuiling, 7 August 2012, coll. Weibin Zheng ( GUGC).

Diagnosis. This species is similar to Angustuma rufipenna ( Li et Wang, 2003) , but can be distinguished from the latter by the lorum without black spot, scutellum black on both sides of the base angle, and the structures of the aedeagal shaft in side view or dorsal view are also different.

Etymology. The species name is derived from the Latin words “ ru- ” and “ dorsum ”, referring to the body is orange in the back.

Figures

FIGURES 1 – 4 Angustuma rudorsuma sp. nov.: 1, ♂, dorsal view; 2, ♂, lateral view; 3, ♂ head and thorax, dorsal view; 4, ♂ face.

FIGURES 5 – 10 Angustuma rudorsuma sp. nov.: 5, Male pygofer side, lateral view; 6, Subgenital plates, ventral view; 7, Aedeagus, caudal view; 8, Aedeagus, lateral view; 9, Connective, dorsal view; 10, Style, ventral view.