Saigona fuscoclypeata, Liang, Ai-Ping & Song, Zhi-Shun, 2006

Liang, Ai-Ping & Song, Zhi-Shun, 2006, Revision of the Oriental and eastern Palaearctic planthopper genus Saigona Matsumura, 1910 (Hemiptera: Fulgoroidea: Dictyopharidae), with descriptions of five new species, Zootaxa 1333, pp. 25-54 : 37-39

Saigona fuscoclypeata sp. nov.

( Figs. 4 , 26–35 )

Description

ɗ, BL: 15.8–16.4 mm; HL: 2.8–2.9 mm; HW: 1.5 mm; FWL: 11.8–12.4 mm. Ψ, BL: 16.1–16.9 mm; HL: 2.7–3.0 mm; HW: 1.3–1.5 mm; FWL: 12.4–12.6 mm.

General color ochraceous, marked with fuscous and brown. Vertex and most part of genae ochraceous or fuscous, areas surrounding ocellus and antenna beneath eye yellowish. Frons yellowish brown; postclypeus, anteclypeus and labrum fuscous. Rostrum pale brown, tip black. Pronotum ochraceous, marked with blackish brown; with lateral, ventrally curved areas with broad, triangular, yellowish band. Mesonotum ochraceous, marked with fuscous. Thorax ventrally dark brown, marked with yellowish brown. Legs fuscous, marked with pale brown; coxae blackish brown, middle coxae much paler; femora covered with numerous pale brown speckles; tibiae pale brown with two broad fuscous rings basally and medially, respectively; tarsi and claws brown; tips of apical spines on hind tibiae and tarsi black. Abdomen ventrally yellowish, marked with blackish brown; dorsally dark brown, with yellowish brown spots; pygofer and parameres fuscous.

Head ( Figs. 4 , 26–28 ) relatively short, slightly shorter than pronotum and mesonotum combined. Vertex ( Figs. 4 , 26 ) with cephalic process relatively short and robust, median carina only conspicuous at basal 1/3, remainder faint; lateral carinate margins curved in front of eyes. Frons ( Fig. 28 ) with lateral carinae reaching to eyes, not to frontoclypeal suture.

Mesonotum ( Figs. 4 , 26 ) tricarinate on disc, with median carina conspicuous but not reaching to extreme tip. Fore wing venation as in Fig. 32 .

Male genitalia with pygofer ( Figs. 29–31 ) large and broad, posterior margin nearly straight and excavated over apical 1/3 to accommodate anal tube, length ratio of upper margin to lower margin about 1: 2.0. Anal tube ( Figs. 29, 30 ) large and nearly triangular in lateral view ( Fig. 30 ), large and subcircular in dorsal view ( Fig. 29 ), ratio of length to width at middle about 1.2: 1. Anal styles ( Figs. 29, 30 ) large, broad, elongate. Parameres ( Figs. 30, 31 ) small and short in lateral aspect ( Fig. 30 ), apex sharply rounded and protruded posteriorly. Aedeagus ( Figs. 33–35 ) with phallobasal conjunctival processes long, curved inward; phallobase narrow, long, curved dorsally, with apical, dorsal, membranous lobe narrow and long in dorsal view ( Fig. 35 ), without spines, and apical, ventral, membranous lobe global in lateral view ( Fig. 34 ), covered with numerous fine spines at apex.

Material examined

Holotype ɗ, China, Shaanxi, Ningshaan, Dashui Gou, 1500–1760 m, 30.vi.1999, D. C. Yuan ( IZCAS). Paratypes, China, Hubei: 1ɗ, Mt. Shennongjia, Guanmen Shan, 1500 m, 30.vii.1998; Y. D. Yu; Gansu: 1ɗ, Wen County, Tielou, Keqiao Cun, 1500 m, 23.vi.1999, H. J. Wang; Hubei: 2ΨΨ, Mt. Shennongjia, Jiuhu, Pingche Gou, 1870 m, 24.vii.1998, T. H. Luo & J. J. He (all in IZCAS).

Etymology

This species is named after its fuscous clypeus.

Remarks

This species is similar to S. ussuriensis ( Lethierry, 1878) in appearance but can be distinguished from the latter by its clypeus and labrum fuscous; mesonotum without a yellowish median longitudinal stripe; aedeagus with phallobase having the apical, dorsal, membranous lobe more elongate, and the apical, ventral, membranous lobe not divided into smaller lobes at apex ( Figs. 33–35 ).

Distribution

China (Gansu, Hubei, Shaanxi).

Figures

FIGURES 1 – 12. Dorsal habitus of Saigona species. 1. S. capitata (Distant, 1914), female. 2. S. fulgoroides (Walker, 1858), male, China. 3. same, female. 4. S. fuscoclypeata sp. nov., male, holotype, China: Shaanxi. 5. S. henanensis sp. nov., male, holotype, China: Henan. 6. S. latifasciata sp. nov., male, holotype, China: Yunnan. 7. S. robusta sp. nov., male, holotype, China: Hubei. 8. same, female, paratype. 9. S. sinicola sp. nov., male, holotype, China: Shaanxi. 10. same, female, paratype. 11. S. ussuriensis (Lethierry, 1878), male, Japan. 12. same, female.

FIGURES 26 – 35. Saigona fuscoclypeata sp. nov., male, holotype. 26. head, pronotum and mesonotum (dorsal view). 27. head and pronotum (lateral view). 28. head (ventral view). 29. pygofer and anal tube (dorsal view). 30. genitalia (lateral view). 31. pygofer and parameres (ventral view). 32. right fore wing. 33. aedeagus (ventral view). 34. same (lateral view). 35. same (dorsal view).