Polychornum bilobum (Meng, Qin & Wang, 2020)

Chen, Xiang-Sheng & Gong, Nian, 2025, Taxonomic study of the Caliscelidae (Hemiptera: Fulgoromorpha: Fulgoroidea) from China, Zootaxa 5670 (1), pp. 1-129 : 90

Polychornum bilobum (Meng, Qin & Wang, 2020)

( Figures 77–79 , 80A, B )

Symplana biloba Zhang et al., 2020: 152 , combined by Gnezdilov, 2021b: 693.

Augilina triaina Gong, Yang & Chen, 2021a: 43 , synonymised by Gnezdilov, 2021b: 693.

Material examined. 15♂♂ 24♀♀, China: Yunnan Province, Jinghong City, Menglong Town ; 21°58’ N, 100°68’ E; 2019-VI-23; Nian Gong, Hong-Xing Li, Feng-E Li and Shi-Yan Xu ; 1♂ 2♀♀, China: Yunnan Province, Mengla County, Menglun Town ; 21°50’ N, 101°00’ E; 2013-VII-27, Yuan Liu; on bamboo .

Host plant. Bamboo ( Figure 80C ).

Distribution. China (Yunnan Province).

Remarks. P. bilobum (Meng, Qin & Wang, 2020) is similar to P. tetrainum (Chen & Gong, 2021) , but differs in: 1) anal style large (small in P. tetrainum ); 2) aedeagus with almost straight apical half (broadly concave in P. tetrainum ); 3) genital styles with three processes (with four processes in P. tetrainum ).

Figures

FIGURE 77. Polychornum bilobum (Meng, Qin & Wang, 2020) A. Male habitus, dorsal view; B. Male habitus, lateral view; C. Female habitus, dorsal view; D. Female habitus, lateral view. Scale bars: 0.5 mm (A–D).

FIGURE 78. Polychornum bilobum (Meng, Qin & Wang, 2020) Male. A. Head and thorax, dorsal view; B. Face; C. Head and thorax, lateral view; D. Forewing; E. Hindwing; F.Anal segment, dorsal view; G. Male genitalia, lateral view; H. Pygofer, posterior view; I. Genital styles, lateral view; J. Pygofer and genital styles, ventral view; K. Aedeagus, lateral view; L. Aedeagus, dorsal view. Scale bars: 1 mm (D, E); 0.5 mm (A–C); 0.3 mm (F–L).

FIGURE 79. Polychornum bilobum (Meng, Qin & Wang, 2020) Female: A. Genitalia, lateral view; B. Genitalia, ventral view; C.Anal segment, dorsal view; D. Abdominal sternite VII, ventral view; E. Gonapophysis VIII, lateral view; F. Gonapophysis IX, lateral view. Scale bars: 0.5 mm (A, B, D); 0.3 mm (C, E, F).

FIGURE 80. Habitat of Polychornum bilobum (Meng, Qin & Wang, 2020) A, B. Living adult; C. General environment and host plant. 15 June 2023, Chebaling National Nature Reserve, Guangdong Province, photograph by Sha-Sha Lv and Feng-E Li.