Semia hainanensis, Yang, Mingsheng & Wei, Cong, 2013

Yang, Mingsheng & Wei, Cong, 2013, A checklist of the cicadas (Hemiptera: Cicadidae) of Hainan Island, China, with description of a new species, Zootaxa 3731 (1), pp. 113-132 : 117-121

15. Semia hainanensis sp. n.

Figures 1–2

Holotype: ♂, CHINA, Hainan Prov., Limushan Nature Reserve, 650 m, light trap, 17.iv.2008, coll. Yang Zhaofu & Fu Qiang (NWAFU). Paratypes: 1♂, CHINA, Hainan Prov., Jianfengling Nature Reserve, 980 m, light trap, 7.v.2008, coll. Fu Qiang (NWAFU); 1♂, CHINA, Hainan Prov., Jianfengling Nature Reserve, 960 m, light trap, 28.v.2011, coll. Yang Mingsheng (NWAFU).

Description (male). Head ( Figs 1 A–B, 2A) mostly greenish yellow, with irregular brown markings enclosing ocelli and on super-antennal plate and lorum, and pair of large brownish markings on vertex; head including eyes nearly as wide as base of mesonotum; ocelli reddish; distance between lateral ocellus and corresponding eye much longer than that distance between the two lateral ocelli; postclypeus moderately prominent, with black stripes along transverse grooves mid-anteriorly and large blackish marking mid-posteriorly; anteclypeus with large irregular blackish marking; rostrum brownish with apical half light ochreous, extending to apex of hind coxae.

Pronotum ( Fig. 1 A) mostly light greenish yellow; with pair of central longitudinal dark ochraceous fasciae broadened at both anterior and posterior ends; paramedian fissure and lateral fissure with narrow dark ochraceous fascia; a small, somewhat triangular dark ochraceous spot adjacent to posterior part of central longitudinal black fasciae; large and small fuscous spots near lateral angle of pronotal collar; anterolateral margin of pronotum well ampliated, pronotal collar dentate. Mesonotum ( Fig. 1 A) light greenish yellow, with the following dark ochraceous marks: a slender central longitudinal fascia which is distinctly broadened on both anterior and posterior ends; a pair of short and outwardly curved lateral fasciae distinctly broadened anteriorly and fused with the central longitudinal fascia; a pair of inwardly curved long stripes lateral to the short outwardly curved fasciae, with posterior end indistinctly connected with the broadened posterior part of central fascia; a pair of short fasciae and several small irregular spots more laterally; a pair of roundish spots enclosing scutal depressions. Ventral surface of thorax greenish yellow, without distinct marking.

Legs ( Fig. 1 A–B) mostly pale greenish yellow; apices of tibiae and tarsi dark ochraceous. Fore femur with primary spine prostrate; secondary and subapical spines erect, sharp and short.

Wings ( Fig. 1 A–B) hyaline; fore wing with infuscations along cross veins r and r-m, CuA2 vein and roundish infuscation present on each apex of veins RA2, RP, M1–4, and CuA1; hind wing with continuous infuscation along basal veins of apical cells 1–3, forming a zigzag mark.

Abdomen ( Fig. 1 A–B) mostly pale greenish yellow; cylindrical but slightly wider across abdominal segments 3–4, and much longer than distance from head to cruciform elevation; tergites 6–8 with tiny white hairs and dense pollinosity; tergite 8 with pair of large dark ochraceous spots near posterior margin; timbal cover semicircular; timbal partially exposed with seven ribs and three intercalary ribs ( Fig. 2 A). Operculum ( Fig. 1 B) pale mostly greenish yellow, broader than long, with anterolateral part black, somewhat triangular, covered with tiny white hairs and pollinosity; lateral margin gradually inwardly curved; posterior margin rounded, reaching nearly to posterior sternite II; medial margins convex, not touching to each other.

Genitalia ( Fig. 2 C–D). Pygofer oval in ventral view; dorsal beak short, somewhat triangular, very slightly protruding upwards in lateral view; distal shoulder distinctly curved outwards in ventral view; basal lobe of pygofer absent; uncus with large triangular median cleft between bases of uncal lobes in ventral view; paired uncal lobes long, touching each other from close to bases to apices, with inner apical angle nearly acute.

Female. Unknown.

Measurements (3♂♂, in mm, mean (range)). Length of body: 38.5 (37.1–40.2); width of head including eyes: 9.4 (8.3–10.2); forewing length: 39.2 (37.1–41.8); width of pronotum (including pronotal collar): 11.0 (10.6–11.5); width of mesonotum: 10.0 (9.4–10.5).

Biology. Unknown.

Distribution. China (Hainan Prov.).

Etymology. The specific name is after the locality of the holotype.

Remarks. This new species closely resembles S. watanabei (type species of Semia ) in the morphology of male genitalia, but can be distinguished from the latter by the following characters: anterolateral margin of pronotum well ampliated; median stripe on pronotal collar absent; mesonotum with outwardly curved fasciae adjacent to the central longitudinal fascia short, not connected to the inwardly curved long lateral stripes; timbal cover without fascia on margin; distal shoulder of male pygofer distinctly outwardly curved in ventral view; uncal lobes in ventral view broader and connected to each other from close to the base to apex but not fused basally (viz., with a large triangular median cleft basally). In addition, a recent molecular phylogenetic investigation of the species of Semia , including S. watanabei , using DNA barcoding analysis also confirms this species a separate barcode lineage different to other lineages (Yang & Wei., in prep.).

Subtribe Leptopsaltriina Moulton

Genus Terpnosia Distant 1892

16. Terpnosia sp.

Material examined. Hainan: 1♂, Mt. Qixianling, 220 m, light trap, 29.vii.2009, coll. Wang Shuye (NWAFU). Distribution. China (Hainan).

Remarks. This species is similar to T. clio but differs in the male genitalia.

17. Terpnosia fuscoapicalis Kato, 1938

Terpnosia fuscoapicalis Kato, 1938: 18 ; Chou et al., 1997: 205; Chen & Zheng, 2000: 41.

Material examined. Hainan: 1♂, Mt. Limushan, light trap, 26.v.1984, coll. Gu Maobin (NWAFU). Discribution. China (Hainan, Zhejiang, Hunan, Guangxi, Guangdong, Jiangxi and Fujian) (Chen & Zheng, 2000; Chou et al., 1997).

Remarks. This species is newly recorded from Hainan.

Genus Euterpnosia Matsumura, 1917

18. Euterpnosia ruida Lei & Chou, 1997

Euterpnosia ruida Lei & Chou , in Chou et al., 1997: 201; Pham & Yang, 2009: 12.

Material examined. Hainan: 8♂♂6♀♀, Mt. Jianfengling, 960 m, light trap, 28.v.2011, coll. Yang Mingsheng (NWAFU).

Distribution. China (Hainan), Vietnam (Pham & Yang, 2009).

19. Euterpnosia chibensis Matsumura, 1917

Euterpnosia chibensis Matsumura, 1917: 203 ; Chou et al., 1997: 198; Chen & Zheng, 2000: 40; Hayashi & Saisho, 2011: 118.

Material examined. Hainan: 1♂, Mt. Jiangfenling, 80 m, light trap, 17.vii.2009, coll. Ma Libin (NWAFU). Distribution. China (Hainan, Yunnan and Guangdong), Japan (Chen & Zheng, 2000; Chou et al., 1997). Remarks. This species is newly recorded from Hainan.

Genus Tanna Disant, 1905

20. Tanna pseudocalis Lei & Chou, 1997

Tanna pseudocalis Lei & Chou , in Chou et al., 1997: 220; Chen & Zheng, 2000: 41.

Material examined. Hainan: 2♂♂, Mt. Limushan, 650 m, 19.iv.2008, coll. Zheng Jianwu & Men Qiulei (NWAFU); 1♂, Mt. Qixianling, 130 m, light trap, 30.iv.2008, coll. Zheng Jianwu (NWAFU); 1♂, Mt. Jianfengling, 960 m, light trap, 29.v.2011, coll. Yang Mingshneg (NWAFU).

Distribution. China (Hainan, Hunan, Fujian and Guangdong) (Chen & Zheng, 2000; Chou et al., 1997).

Genus Gudaba Distant, 1906

21. Gudaba maculata Distant, 1912

Gudaba maculata Distant, 1912: 439 ; Chou et al., 1997: 216.

Distribution. China (Hainan and Yunnan), India (Chou et al., 1997).

Remarks. This species was recorded from Mt. Wuzhishan of Hainan by Chou et al. (1997).

Figures

FIGURE 1. Semia hainanensis sp. n., male. A. habitus, dorsal view; B. habitus, ventral view.

FIGURE 2. Semia hainanensis sp. n., male. A, timbal and timbal cover, dorsal view; B, face; C, male genitalia, ventral view; D, male genitalia, left lateral view.