Pedionis (Pedionis) dentiforma, Yang, Liyuan & Zhang, Yalin, 2014

Yang, Liyuan & Zhang, Yalin, 2014, Three new species in the leafhopper genus Pedionis Hamilton (Hemiptera: Cicadellidae: Macropsinae) from China, with a key to Chinese species, Zootaxa 3760 (4), pp. 587-595 : 591-594

Pedionis (Pedionis) dentiforma sp. nov.

( Figs. 1 E–H, 3)

Description. Length. Male 4.0 mm.

Coloration. Body pale brown with numerous dark brown spots ( Figs. 1 G, H). Ocelli white, located between eyes; eyes pale brown. Anteclypeus dark brown in apical half ( Fig. 1 F). Pronotum darker than head. Scutellum with basolateral triangles dark orange ( Fig. 1 E). Forewing brown, venation dark brown with white spots ( Fig. 1 H).

Morphology. Body comparatively stout and small. Face longer than wide, Clypeus extruded. Hind tibial spinulation R1 11, R2 8, R3 5.

Male genitalia. Pygofer ( Fig. 3 A) broad and without caudo-dorsal spine usually presented in Pedionis , setae on caudoventral margin relatively stout. Subgenital plate slender with many setae, several especially long at the end. Style ( Fig. 3 G) parallel-margined and angled on apical third, apex obliquely truncate, producing a narrow truncate process on dorsal margin. Connective ( Figs. 3 B, C) similar to that of P. (P.) tribrachyblasta sp. nov. but have much slender shaft. Aedeagal shaft ( Figs. 3 D, E) with pair of triangular sharp projections apically and pair of small spinelike processes subapically. Dorsal connective ( Fig. 3 F) processes slender, distal part longer with minutely marginal serrations.

Female. Unknown.

Distribution. China: Sichuan (Mt. Emei)

Material examined. Holotype. Male, China: Sichuan Province, Mt. Emei, 14 July 2005, coll. Lu Lin. Paratype: 1 male, same data as holotype.

Remarks. Pedionis dentiforma resembles P. spinata Zhang & Viraktamath internally, but differs in having more caudo-ventral setae; longer apical setae on subgenital plates; and the apical processes of the aedeagus much wider and sharper. It also has obvious differences externally: lighter colouration; much clearer striations and spots. Etymology. The specific epithet is derived from the Latin word “dentiformis”, referring to the contrastingly colored, tusklike basal triangles of the scutellum.

Figures

FIGURE 3. Pedionis (Pedionis) dentiforma sp. nov. A, Pygofer side and subgenital plate, lateral view; B, Connective, ventral view; C, Connective, lateral view; D, Aedeagus, caudal view; E, Aedeagus, lateral view; F, Dorsal connective, lateral view; G, Style, lateral view.

FIGURE 1. P. (P.) tribrachyblasta sp. nov. A, Body, dorsal view; B, Habitus, lateral view; C, Head and pronotum, dorsal view; D, Face. P. (P.) dentiforma sp. nov. E, Head and pronotum, dorsal view; F, Face; G, Body, dorsal view; H, Habitus, lateral view. P. (P.) dinghuensis sp. nov. I, Body, dorsal view; J, Habitus, lateral view; K, Head and pronotum, dorsal view; L, Face.