Scaphotettix redstripeus Li & Wang, 2005.

Body ochraceous. Head yellowish with a thin dark brown transverse band anteriorly either side of ocellus. Vertex with an orange arcuate band between eyes. Pronotum with pair of orange arcuate bands.

Head slightly narrower than greatest width of pronotum; ocelli on anterior margin, separated from corresponding eye by approximately their own diameter; vertex longer medially than next to eye, anterior margin distinctly angulate. Face slightly flattened, antenna located near upper corner of eye; anteclypeus flat and slightly expanded from base to apex. Pronotum anterior margin strongly produced, posterior margin slightly concave, with length slightly longer than scutellum. Fore femur with 2 dorsoapical setae, row AM with 1 stout seta, row IC with 14 setae, and row AV with several short setae in basal half. Fore tibia with 3 macrosetae in row AD and numerous macrosetae in row AV. Hind femur with apical setal formula 2+2+1. Hind tibia flattened and slightly incurved, row AD with approximately 10 long stout setae and 1–3 shorter setae between each long seta; row PD with 15 macrosetae decreasing in length toward base.

Male genitalia. Pygofer with numerous macrosetae on posterior area. Valve subtriangular. Subgenital plate short with several macrosetae on lateral margin; three apical setae dark brown, rest pale. Aedeagus with a pair of processes fused to base of ventral margin; shaft cylindrical with or without apical processes, gonopore apical; dorsal apodeme elongate bifurcate apically. Style broad basally, apical processes short and curved; lateral lobe triangular shaped. Connective Y-shaped with stem very short, articulated with aedeagus.

The appearance of this genus is similar to several other genera of the Scaphoideini: Scaphoideus group (see Wei et al. 2025: 237) with a pair of thin dark transverse bands on the anterior margin of the head and orange transverse bands on the head and thorax. It can be distinguished from other members of this group by a combination of characters in the male genitalia, i.e., aedeagus with pair of basal processes from the ventral margin and basal apodeme elongate, subgenital plate short and stem of connective very short.

Oriental Region: China, Vietnam.

Color and external features as in generic description, Face yellowish. Pronotum yellowish with two orange arcuate bands, middle part of the second band not connected (Fig. 1C). Vertex slightly more than 1.9 × wider than its median length, medially 1.5 × shorter than median length of pronotum. Pronotum nearly 2.2 × maximum width than median length (Fig. 1D).

Figure 1. 

Male of Scaphomonoides redstripeus (Li & Wang, 2005). A. Habitus, dorsal view; B. Habitus, lateral view; C. Face, ventral view; D. Head and thorax, dorsal view.

Male genitalia. Pygofer side wide basally, apex narrow, with numerous macrosetae on posterior area (Fig. 2A). Anal tube short (Fig. 2A). Valve subtriangular, nearly 1.5 × as broad as median length (Fig. 2B). Subgenital plate with 8 macrosetae along lateral margin, length of outer margin about 1.75 × width of base (Fig. 2B). Aedeagus with a pair of moderately long slender pointed processes arising from ventral margin near base; shaft tubular, distally tapered to acute apex, without processes; dorsal apodeme elongate, bifurcate distally (Fig. 2C, D). Connective Y-shaped, stem very short (Fig. 2C, D). Style broad basally, apical process short, curved and tapered to apex (Fig. 2F).

Figure 2. 

Male of Scaphomonoides redstripeus (Li & Wang, 2005). A. Pygofer and anal tube, lateral view; B. Valve and left subgenital plate, ventral view; C. Aedeagus and connective, dorsal view; D. Aedeagus and connective, ventral view; E. Aedeagus and connective, lateral view; F. Style, dorsal view.

Female genitalia. Seventh sternite with posterior margin distinctly concave medially, concavity somewhat distinctly extended posteriorly in midline and sharply cleft (Fig. 3B). Pygofer with ventroposterior margin incurved (Fig. 3A). First valvulae of ovipositor with dorsal sculpture strigate (Fig. 3C, D). Second valvulae with denticles in distal half, prominent, gradually becoming smaller distally, apex rounded (Fig. 3E, F).

Figure 3. 

Famale of Scaphomonoides redstripeus (Li & Wang, 2005). A. Genital capsule, lateral view; B. Seventh sternite, ventral view; C. First valvula, lateral view; D. Detail of sculpture of first valvula; E. Second valvulae, lateral view; F. Detail of sculpture of second valvulae.

(mm). Length (including tegmen): ♂, 5.07–5.44; ♀, 5.18–5.42.

China–Hainan Prov. • 2♂♂, 12♀♀; Jianfengling; 14 May 1997; M.F. Yang leg.; GUGC. –Hainan Prov. • 2♂♂, 4♀♀; Jianfengling; 12 Jul. 2007; Y.J. Li, J.C. Xing leg.; GUGC. –Jianxi Prov. • 2♂♂, 4♀♀; Jiuliansha; 19 Jul. 2008; Z.H. Meng leg.; GUGC. –Yunnan Prov. • 2♂♂,4♀♀; Mengla County, 19 Jul. 2008; X.H. Jiang, J.D. Li leg.; GUGC. –Hainan Prov. • 4♂♂; Jiulianshan; 19 Jul. 2008; F.E. Li leg.; GUGC. –Hainan Prov. • 1♂,2♀♀; Limushan, 19 Apr. 2021; S.S. Lv leg.; GUGC. –Hainan Prov. • 3♀♀, Diaoluoshan, 5 May 2021; N. Gong leg.; GUGC.

China: Hainan, Yunnan, Jiangxi; Vietnam.

The original figures of Li and Wang (2005) are poor, e.g., lacking the aedeagus in ventral view and dorsal apodeme described as the aedeagal shaft. Here, the male genitalia structures are illustrated and redescribed (see also figures in Wei et al. 2025).

External features as in Scaphomonoides redstripeus, but face yellowish–brown and second orange band of pronotum complete with no break in middle (Fig. 4C).

Figure 4. 

Male of Scaphomonoides robustus sp. nov. A. Habitus, dorsal view; B. Habitus, lateral view; C. Face, ventral view; D. Head and thorax, dorsal view.

Male genitalia. Pygofer side approximately rectangular, with stout setae over dorsoposterior area (Fig. 5A). Valve subtriangular, nearly 1.9 × as broad as median length (Fig. 5B). Subgenital plate rectangular, with a row of 11 stout setae along lateral margin. (Fig. 5B). Aedeagus with a pair of processes arising basally and extended beyond end of aedeagal shaft, apex of shaft with two pairs spiniform of processes, gonopore apical (Fig. 5C, D). Connective with arms nearly same length as stem (Fig. 5C, D). Style broad basally, preapical lobe short and rounded (Fig. 5F).

Figure 5. 

Male of Scaphomonoides robustus sp. nov. A. Pygofer and anal tube, lateral view; B. Valve and left subgenital plate, ventral view; C. Aedeagus and connective, dorsal view; D. Aedeagus and connective, ventral view; E. Aedeagus and connective, lateral view; F. Style, dorsal view.

(mm). Length (including tegmen): ♂, 5.04.

China–Yunnan Prov. • 1♂ (Holotype); Ruili, Mengxiu; 17 Jul. 2013; H.Y. Sun leg.; GUGC.

China: Yunnan.

This new species is similar to S. redstripeus in general appearance, but can be distinguished by the subgenital plate setae being more numerous, less stout and shorter than in S. redstripeus and a very differently shaped aedeagus.

The new species name is the Latin word “robustus,-a,-um” (=robust, stout), referring to the aedeagus with a pair of stout processes arising from ventral margin near base.