Salka circumflexa, Ohara, Naomichi, 2012

Ohara, Naomichi, 2012, Taxonomic study of the Japanese species of the genus Salka Dworakowska (Hemiptera, Cicadellidae, Typhlocybinae), Zootaxa 3281, pp. 22-40 : 25-28

publication ID	https://doi.org/ 10.5281/zenodo.280852
DOI	https://doi.org/10.5281/zenodo.6181868
persistent identifier	https://treatment.plazi.org/id/03CF2470-9611-4705-6380-FAC9FACB37A4
treatment provided by	Plazi
scientific name	Salka circumflexa
status	sp. nov.

Treatment

Salka circumflexa View in CoL sp. nov.

( Figs. 2 View FIGURES 1 – 8 , 10 View FIGURES 9 – 16 , 29–40 View FIGURES 29 – 40 , 114 View FIGURES 113 – 121 )

Body beige. Vertex with large black spot at center, which is roundly quadrilateral; face pale orange. Mesonotum with basal triangles black; fore wing slightly darkened apicad. Dorsum of female abdomen infuscated; pygofer brown, gradually darkened toward apex; ovipositor (3rd valvulae) brown.

Vertex 3.0 times as wide as long at dorsal mid-line; pronotum 2.0 times as wide as long, slightly shorter than mesonotum. Male abdominal sternal apodemes slightly exceeding posterior margin of 3rd sternite. Female 7th abdominal sternite rectangular with posterior margin produced caudally. Ovipositor (3rd valvulae) slightly extending beyond pygofer.

Body length: 3, 3.6 mm; Ƥ, 3.8 mm.

Male genitalia ( Figs. 30–40 View FIGURES 29 – 40 ). Pygofer with caudal margin roundly produced and weakly sclerotized, bearing 1–2 macrosetae on dorsal margin, tuft of short macrosetae at lower basal angle and short setae on surface of lobe, with dorsal and ventral processes; dorsal process short, reaching caudal 1/4 of pygofer, nearly straight; ventral process long, exceeding pygofer, sinuate near base of dorsal margin. Subgenital plate widened in basal 1/3, gently narrowed in apical 2/3, bearing 3 macrosetae. Style slender, triangular at apical 1/4; apical extension of apophysis with some minute furrows. Connective U-shaped, with central lobe distinct. Aedeagus strongly bent dorsad near base, with dorsal apodeme elongate, provided with apical and subapical processes sharply curved cephalad; apical process arising from right side of shaft, as long as subapical one; subapical process arising from apical 1/6 of left side; shaft straight, gently narrowed apicad, with small apical process dorsally; preatrium indistinct; gonopore apical.

Type series. Holotype: 3, Mt. Matsunaga-yama, Amami-Naze, Amami-Oshima Is., Ryukyus, Japan, 19. IX. 2006, M. Hayashi et al. Paratype: [Amami-Oshima] 1Ƥ, same data as holotype. The holotype is deposited in the Department of Biology, Faculty of Education, Saitama University, Saitama, Japan.

Distribution. Japan (Ryukyus: Amami-Oshima Is.).

Remarks. This species is similar to S. asna Dworakowska, 1976 described from southern Taiwan (Kaohsiung) and S. triangula Chiang et Knight, 1990 from central Taiwan (Taichung) in the structure of male genitalia. But it can be distinguished by the following characters: pygofer with lobe trapezoidal, bearing dorsal pygofer process short; aedeagal processes sharply bent cephalad.

Etymology. The specific name is derived from the characteristic shape of the aedeagal apex in apical view.