Jilinga taibaiensis , Zhang, Huining & Dai, Wu, 2017

Zhang, Huining & Dai, Wu, 2017, Revision of the grassland leafhopper genus Jilinga Ghauri (Hemiptera: Cicadellidae: Deltocephalinae: Paralimnini) with description of a new species from China, Zootaxa 4268 (4), pp. 541-553: 543-552

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Jilinga taibaiensis

sp. nov.

Jilinga taibaiensis  sp. nov.

Figs. 1A–DView FIGURE 1, 2View FIGURES 2 A–F, 3A–H, 4A–E, 5A–H.

Description. Brownish yellow. Vertex triangular with pair of oblique streaks on anterior margin; pronotum with four or six dirty yellow or brownish yellow longitudinal bands ( Fig. 1A–DView FIGURE 1). Legs mostly pale, with dark brown maculae ( Fig.1BView FIGURE 1, 2View FIGURES 2 A–F).

Male with pygofer side about twice as long as broad, without process on inner surface, posterior half with numerous long macrosetae ( Fig. 3View FIGURE 3 C, D). Anal tube with appendages fused preapically and then divergent ( Fig. 3View FIGURE 3 E, F), almost reaching ventral margin of pygofer ( Fig. 3View FIGURE 3 C, D), with small tooth at subapex ( Fig. 3View FIGURE 3 F, G). Subgenital plate triangular, longer than width at base, broad basally with lateral margin incurved at basal 1/3, then tapering to acute apex slight curved laterally ( Fig. 4View FIGURE 4 C, D). Style with apophysis slightly curved laterally ( Fig. 4View FIGURE 4 E). Connective loop-shaped, arms fused apically ( Fig.4View FIGURE 4 A, B). Aedeagus shaft slender and curved dorsally, with 8 pairs of lateral teeth arranged somewhat asymmetrically; gonopore apical on ventral margin; dorsal apodeme well sclerotized and articulated with preatruim, broadly U-shaped in posterior view; dorsal connective symmetrical with pair of footlike processes extended posterad and partly enclosing apex of aedeagus ( Fig.4View FIGURE 4 A, B).

Female seventh sternite posterior margin with broadly rounded medial projection separated from narrow rounded lateral projections by V-shaped notches ( Fig. 1DView FIGURE 1, 5View FIGURE 5 A). Ovipositor extend to pygofer apex ( Fig. 5View FIGURE 5 B). First valvulae with reticulate sculpture dorsally and scale-like sculpure ventrally ( Fig. 5View FIGURE 5 G, H). Second valvula narrowly blade-like with fine dorsal denticulation on posterior slender part. ( Fig. 5View FIGURE 5 E, F). Third valvula exceeding pygofer side ( Fig. 3View FIGURE 3 D).

Measurements. Male, 3.4–3.7mm long. Female, 3.6–3.8mm long

Material examined. Holotype ♂, China: Shaanxi, Taibai Mountain   , Southern slope, 2950 m, 19-VIII- 2013, Fenglin Cao; Paratypes: 18♂♂ 8♀♀, same as holotype  .

Etymology. The species is named after the type locality, Taibai Mountain.

Remarks. This species resembles J. asymetrica  but can be distinguished from the latter by the subgenital plate tapering apcally with cuspidate apex and the aedeagal shaft with 8 pairs of lateral teeth arranged asymmetrically.

Jilinga asymmetrica Xing et al., 2012  Figs. 1View FIGURE 1 E–H, 6A–H, 7A–H.

Jilinga asymmetrica Xing et al, 2012  :49

Female. Seventh sternite more strongly produced medially than in J. taibaiensis  , with lateral notches shallower ( Fig. 1View FIGURE 1 H, 7A). Female genitalia ( Fig. 7View FIGURE 7 B–H) very similar to J. taibaiensis  but second valvula with obvious fine dorsal denticulation on posterior slender part ( Fig. 7View FIGURE 7 F).

Material examined. China: 2♂♂ 2♀♀, Yunnan, Jinping County, Malu Village , 2000 m, 12-VI- 2009, Wei Cui  ; 5♂♂ 3♀♀, Yunnan, Pingbian, Shuiweicheng , 2000 m, 16-VI- 2009, Wei Cui. 

Distribution. China (Yunan, Guizhou, Taiwan).

Remarks. Xing et al (2012) adequately described the species but did not describe the female structures. It can be recognized by the structure of the aedeagus, which has five asymmetrical pairs of spines on the lateral margin. The female genitalia are figured here for the first time and the shape of the seventh sternite is diagnostic, with the posterior margin approximately triangular, strongly produced and undulate laterally.

Jilinga darjilingensis ( Distant, 1918)  Fig. 8A–CView FIGURE 8.

Deltocephalus darjilingensis Distant, 1918: 82 

Jilinga darjilingensis, Ghauri, 1974: 551  ; Xing et al., 2012:50 Distribution. India

Remarks. Ghauri (1974) placed this species in Jilinga  according the structure of the aedeagus. In their key to species, Xing et al. (2012) separate J. darjilingensis  from J. linzhiensis  by subgenital plate broad at base, then abruptly narrowed at midlength then of uniform width, and the dorsal connective more complex. However, according to the figures in Xing et al. (2012), the subgenital plates of these two species are virtually identical in shape. These two species are very similar each other but J. darjilingensis  may be distinguished by shape of the dorsal connective and short anal tube appendages not reaching the ventral margin of the pygofer lobe.














Jilinga taibaiensis

Zhang, Huining & Dai, Wu 2017


Jilinga asymmetrica

Xing 2012: 49


Jilinga darjilingensis

Xing 2012: 50Ghauri 1974: 551


Deltocephalus darjilingensis

Distant 1918: 82