Symplana brevistrata Chou, Yuan & Wang, 1994

Chen, Xiang-Sheng & Gong, Nian, 2025, Taxonomic study of the Caliscelidae (Hemiptera: Fulgoromorpha: Fulgoroidea) from China, Zootaxa 5670 (1), pp. 1-129 : 105-109

Symplana brevistrata Chou, Yuan & Wang, 1994

( Figures 88–90 , 91A, B )

Symplana brevistrata Chou, Yuan & Wang, 1994: 46 ; Chen, Zhang & Chang, 2014: 170; Zhang et al., 2020: 155.

Symplana elongata Zhang et al., 2020: 154 , synonymised by Gnezdilov, 2022: 31.

Descriptions. Measurements. Body length including forewing: male 9.3–9.8 mm (N = 3), female 10.1–10.8 mm (N = 3); forewing length: male 7.1–7.6 mm (N = 3), female 7.7–8.0 mm (N = 3).

Coloration (old species). Body mainly yellowish green. An orange red broad longitudinal stripe from apex of vertex to tip of vertex abdomen, and longitudinal stripe of the head protrusion pale orange red. Eyes brown, ocelli orange red. Spines of legs with black apices. Forewing hyaline, veins green. Female: Body mainly greenish yellow. Eyes brown, ocelli orange red. Legs yellow, spines of legs with black apices. Forewing hyaline, veins green.

Head and thorax. Head with eyes narrower than pronotum. Vertex including head protrusion with length in middle line 2.4 times than width at base. Vertex with length in middle line as long as width at base. Middle length of head protrusion longer than middle length of vertex (1.4:1). Head protrusion broad at base, narrowing at apex. Frons broad at base, narrowing at apex, slightly raised in the middle, frons including head protrusion with length in middle line 2.86 times than width at base, median carina obvious, connecting with the median carina of clypeus, sublateral carinae not reaching frontoclypeal suture. Pronotum shorter than vertex (0.4:1), anterior margin roundly convex strongly, posterior margin broadly concave. Mesonotum with length 2.6 times as long as pronotum. Forewing longer in middle line than broad at widest part (6:1); veins visible, with nodal line, R and MP with common stem; after nodal line, R single, MP with five branches, CuA with two branches, Pcu uniting A1 at basal 2/5 of clavus. Hindwing with length 2.5 times as long as broad at widest part, ScP, MP and CuA with two branches, RP single. Spinal formula of hind leg 6-0-0.

Male genitalia. Anal segment in dorsal view with length 3.4 times longer in middle line than widest part, apical margin roundly convex, finger-liked; anal pore located at apical half; in lateral view dorsal margin concave and sinuate, ventral margin slightly convex, basal half broad, apical half narrow. Pygofer in lateral view with dorsal margin distinct shorter than ventral margin, posterior margin deeply concave in the middle, upper half nearly right angles convex, lower half straight, in posterior view, with length 2.2 times longer in middle line than widest part; in ventral view, posterior margin sinuate, near posterior margin with a rough moon-shaped patch. Genital style in lateral view rather long and narrow, dorsal margin concave, apex narrow, near apical margin with a tooth process; in ventral view, apex rough, slightly concave. Aedeagus tubular, slender and long, tapering apically, in lateral view, curved to the basement, with almost straight apical half. Connective fused with base of aedeagus, in lateral view, acute angle ventrally curved in the middle.

Female genitalia. Anal segment in dorsal view with length 1.5 times longer in middle line than widest part, apical margin roundly convex; anal pore located at apex; in lateral view small, the base 2/3 broad, apically 1/3 narrow. Abdominal sternite VII in ventral view with width 1.6 times as long as length, posterior margin roundly concave in the middle, behind the posterior margin with a mushroom-shaped ossification flake. Gonapophysis VIII elongate, with nine spines at apical margin. Gonapophysis IX with two symmetrical lobes, each lobe nearly rectangle with many spines at dorsal margin, dorsal margin right-angle convex in the middle, ventral margin slightly concave. Gonoplac with outer surface shagreen; in lateral view broad, nearly triangle, apical margin rounded.

Host plant. Bamboo ( Figure 91C ).

Distribution. China (Yunnan, Guangxi and Guangdong Province).

Material examined. 10♂♂ 15♀♀, China: Guizhou Province, Libo County, Maolan Natural Reserve , 2019- VIII-28, Nian Gong and Zhi-Cheng Zhou ; 5♂♂ 4♀♀, China: Guangxi Province, Daxin County, Shuolong, 2011- IV-21, Jian-Kun Long ; 3♂♂ 1♀, China: Guangdong Province, Guangzhou City, South Kunshan , 2010-VIII-22, Xiao-Hui Hou ; 18♂♂ 22♀♀, China: Guangxi Province, Daxin County, Shuolong , 2019-IV-5, Yong-Jin Sui, Xiao-Ya Wang and Zhi-Cheng Zhou .

Remarks. S. brevistrata Chou, Yuan & Wang, 1994 is similar to S. lii Chen, Zhang & Chang, 2014 , but differs in: 1) forewing of M with five branches after nodal line (with eight branches after nodal line in S. lii ); 2) anal segment in lateral view long (short in S. lii ); 3) posterior margin deeply concave in the middle, upper half nearly right angles convex, lower half straight (posterior margin sinuated in S. lii ).

Note. The above description is derived from Chou, Yuan & Wang, 1994, for the first time in English.

Figures

FIGURE 88. Symplana brevistrata Chou, Yuan & Wang, 1994 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 89. Symplana brevistrata Chou, Yuan & Wang, 1994 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. Scale bars: 2 mm (D, E); 0.5 mm (A–C, G); 0.3 mm (F, H–K).

FIGURE 90. Symplana brevistrata Chou, Yuan & Wang, 1994 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); 0.2 mm (C, E, F).

FIGURE 91. Habitat of Symplana brevistrata Chou, Yuan & Wang, 1994 A, B. Living adult; C. General environment and host plant. 5 Sept. 2018, Maolan National Nuture Reserve, Libo County, Guizhou Province, photograph by Xiang-Sheng Chen.