Tropidocephala festiva ( Distant, 1906 )

Lv, Sha-Sha, Li, Hong-Xing, Zhang, Yu-Bo, Yang, Lin & Chen, Xiang-Sheng, 2025, Review of the Chinese species of the genus Tropidocephala Stål, 1853 (Hemiptera: Fulgoromorpha: Delphacidae), with descriptions of two new species, European Journal of Taxonomy 981, pp. 114-154 : 125-128

Tropidocephala festiva ( Distant, 1906)

Figs 5–6 , Table 1

Smara festiva Distant, 1906: 478 , fig. 264.

Tropidocephala festiva – Matsumura 1907: 62, pl. 1 figs 6, 12. — Muir 1913: 244, pl. 6 figs 9, 9a. — Matsumura & Ishihara 1945: 60, fig. 27. — Ishihara 1949: 13, fig. 27. — Kuoh et al. 1983: 33, fig. 14. — Yang & Yang 1986: 19, fig. 8. — Ding 2006: 158, fig. 72.

Material examined

CHINA • 27 ♂♂, 14 ♀♀; Guizhou Province, Libo County, Wengang Town ; 25°15′ N, 107°54′ E; 23~ 26 Jul. 2015; Zheng-Xiang Zhou, Yang-Yang Liu, Yuan Liu and Ya-Lin Yao leg.; IEGU • 3 ♂♂; Guizhou Province, Ziyun County, Shuitang Town, Getu River Scenic Area ; 25°40′ N, 106°16′ E; 18 Jul. 2016; Zheng-Xiang Zhou leg.; IEGU • 14 ♂♂, 8 ♀♀; Guizhou Province, Anlong County, Xianheping State Level Natural Reserve ; 24°59′ N, 105°37′ E; 23 Jul. 2016; Hong-Xing Li leg.; IEGU • 2 ♂♂; Guizhou Province, Tongren City , Sinan County; 27°58′ N, 108°15′ E; 24 Jul. 2016; Zheng-Xiang Zhou leg.; IEGU • 3 ♂♂; Guizhou Province, Ceheng County, Pomei Town ; 25°14′ N, 105°40′ E; 30 Jul. 2016; Hong-Xing Li leg.; IEGU • 1 ♂, 1 ♀; Guizhou Province, Changshun County, Guangshun Town ; 26°11′ N, 106°23′ E; 22 Jul. 2018; Qiang Luo leg.; IEGU • 10 ♂♂; Guizhou Province, Dushan County, Cuiquan Forest Park; 25°49′ N, 107°30′ E; 29 Jul. 2018; Hong-Xing Li, Feng-E Li and Zhe-Zhe Wang leg.; IEGU • 4 ♂♂, 11 ♀♀; Guangxi Province, Mulun National Natural Reserve ; 24°50′ N, 108°16′ E; 18–22 Aug. 2015; Zheng-Xiang Zhou, Yang-Yang Liu and Ya-Lin Yao leg.; IEGU • 6 ♂♂, 4 ♀♀; Hainan Province, Jianfengling National Forest Park; 18°43′ N, 108°54′ E; 9 Apr. 2013; Jian-Kun Long leg.; IEGU • 5 ♂♂, 3 ♀♀; Hainan Province, Bawangling National Forest Park; 19°04′ N, 109°07′ E; 16 Apr. 2013; Jian-Kun Long and Yu-Bo Zhang leg.; IEGU • 2 ♂♂; Hainan Province, Diaoluoshan National Forest Park; 18°44′ N, 109°50′ E; 13 Aug. 2015; Zheng-Xiang Zhou, Qiang Luo and Ya-Lin Yao leg.; IEGU • 15 ♂♂, 6 ♀♀; Hainan Province, Bawangling National Forest Park; 19°04′ N, 109°07′ E; 24 Aug. 2015; Zheng-Xiang Zhou, Qiang Luo and Ying-Jian Wang leg.; IEGU • 8 ♂♂, 3 ♀♀; Hainan Province, Yinggeling National Natural Reserve ; 19°02′ N, 109°34′ E; 7 Apr. 2017; Hong-Xing Li and Yong-Shun Ding leg.; IEGU • 17 ♂♂, 8 ♀♀; Hainan Province, Diaoluoshan National Forest Park; 18°44′ N, 109°50′ E; 15 Apr. 2017; Hong-Xing Li and Yong-Shun Ding leg.; IEGU • 12 ♂♂, 2 ♀♀; Hainan Province, Bawangling National Forest Park; 19°04′ N, 109°07′ E; 29 Apr. 2017; Hong-Xing Li leg.; IEGU • 1 ♂, 1 ♀; Hainan Province, Houmiling Nature Reserve ; 18°56′ N, 109°03′ E; 10 May 2017; Hong-Xing Li leg.; IEGU • 3 ♂♂, 19 ♀♀; Hunan Province, Xiaoxi National Natural Reserve ; 28°48′ N, 110°12′ E; 21 Aug. 2016; Hong-Xing Li leg.; IEGU • 1 ♂; Yunnan Province, Mengla County, Mohan Town ; 21°14′ N, 101°42′ E; 30 Nov. 2016; Hong-Xing Li leg.; IEGU .

Redescription

MEASUREMENTS. Body length including forewing: male 3.0– 3.3 mm (N = 134), female 3.5–4.0 mm (N = 80).

COLORATION. Vertex, pronotum and mesonotum ( Fig. 5A–D ) yellow-green, lateral sides of median carinae, outer side of lateral carinae each with a dark brown stripe, proximal lateral region of pronotum with dark brown diagonal stripe. Basal and apical parts of frons ( Fig. 5E ) black, middle part turquoise. Clypeus ( Fig. 5E ) and genae ( Fig. 5B, D ) black. Rostrum ( Fig. 5E ) yellowish brown, apical part dark brown. Antennae ( Fig. 5A–E ) light yellowish brown, apical part of first segment and middle part of second segment with black brown ring-like spot, apical part of second segment with dark brown ringlike spot. Forewings ( Fig. 5F ) yellowish brown, basal part with 2 yellowish-green diagonal stripes, apex of apical and postcostal cells with 8–9 different-sized transparent spots, inner side of crossveins with 3 dark brown burl spots, burl spot with lateral sides small, middle part big.

HEAD AND THORAX. Vertex ( Figs 5C , 6A ) triangular, longer in midline than wide at base (1.8:1). Frons ( Figs 5E , 6B ) oblong, widest at middle level of eyes, longer in middle line than wide at widest part (2.5:1), median carinae simple, slightly concave near base. Antennae ( Figs 5E , 6B ) with first segment shorter than second segment about 1:1.7. Pronotum ( Figs 5C , 6A ) shorter than vertex about 0.6: 1 in midline. Mesonotum ( Figs 5C , 6A ) longer than 0.8× pronotum and vertex combined, median carinae extend to terminal part of scutellum. Forewings ( Fig. 5F ) slightly broadened apically, longer than maximal width (2.4:1).

MALE GENITALIA. Pygofer ( Fig. 6C–D ) ventral margin longer than dorsal margin in lateral view, in posterior view with opening longer than wide, medioventral process lamellar, apical part widened, middle part concave, lateroventral spinous process cuspidal at apex. Anal segment ( Fig. 6C–E ) short, without anal process, wider than long in lateral view, anal style long. Genital styles ( Fig. 6F–G ) broad lamellar, outer apical angle slightly rounded, with several small toothed processes; inner apical part with thick process, apical margin truncate; basal part with broad long lamellar process, base wider, with several toothed processes. Aedeagus ( Fig. 6H–I ) with phallobase, phallus slender, tubular, curved ventrally medially, apical part slender, apex pointed, phallobase wide and long, bend accordingly to phallus, with finger-like protrusion at bend.

Host plant

Imperata cylindrica (L.) P. Beauv . ( Poales , Poaceae ).

Distribution

China (Fujian, Guangdong, Guangxi, Guizhou, Hainan, Hunan, Jiangsu, Taiwan, Yunnan, Zhejiang provinces), Indonesia, Japan, Malaysia, Nansei-shoto, Philippines, Sri Lanka.

Figures

Fig. 5. Tropidocephala festiva (Distant, 1906), ♂ (IEGU). A. Habitus, dorsal view. B. Habitus, lateral view. C. Head and thorax, dorsal view. D. Head and thorax, lateral view. E. Frons, ventral view. F. Forewing.

Fig. 6. Tropidocephala festiva (Distant, 1906), ♂ (IEGU). A. Head and thorax, dorsal view. B. Frons, ventral view. C. Genitalia, posterior view. D. Genitalia, lateral view. E. Anal segment, aedeagus, connective and genital style, lateral view. F. Genital style, posterior view. G. Genital style, lateral view. H. Aedeagus, posterior view. I. Aedeagus, lateral view. Scale bars = 0.2 mm.