Tsauria brevispina Zhi & Chen

Zhi, Yan, Zhang, Pei, Yang, Lin & Chen, Xiang-sheng, 2019, Two new species of the genus Tsauria Kocak & Kemal (Hemiptera, Fulgoromorpha, Cixiidae) from China, with descriptions of female genitalia of three species, ZooKeys 855, pp. 55-69 : 57-58

Tsauria brevispina Zhi & Chen sp. nov. Figs 1-2; 5-16, 17-26

Type material.

Holotype: ♂, China: Hubei, Luotian County, Dabieshan, 15 July 2010, Jun-qiang Ni; paratypes: 3♀♀, Hubei, Luotian County, Dabieshan, 15-17 July 2010, Jun-qiang Ni; 2♂♂5♀♀, Hubei, Luotian County, Dabieshan, Qingtaiguan, 2-3 July 2014, Mei-na Guo, Jian-kun Long, Zheng-xiang Zhou; 1♂2♀♀, Hubei, Luotian County, Dabieshan, Taohuachong, 23-28 June 2014, Mei-na Guo, Hai-yan Sun; 1♂1♀, Hubei, Luotian County, Dabieshan, Wujiashan, 27-29 June 2014, Mei-na Guo, Zheng-xiang Zhou; 5♂♂5♀♀, Guizhou, Tongren, Fanjingshan, Heihewan, 18 May 2013, Wei-cheng Yang, Yu-bo Zhang, Jian-kun Long; 1♂, Guizhou, Guiyang, Huaxi, Qingyan, 20 July 2012, Zhi-hua Fan.

Description.

Body length: male 6.9-7.5 mm (n = 11), female 7.0-8.8 mm (n = 16).

Coloration. General color yellowish brown (Figs 1, 2, 5, 6). Eyes yellowish brown, ocelli yellow. Vertex, face, rostrum and pronotum yellowish brown, mesonotum brown. Forewing semi-translucent, yellowish brown, stigma yellowish brown, termination of forewing blackish brown. Hind tibiae and abdominal sternites yellowish brown.

Head and thorax. Vertex (Figs 1, 5, 7) broad, 1.5 times wider than long; subapical carina with middle prominent into obtuse angle, median carina interrupted by subapical carina, with anterior portion complete, posterior portion only discernible at basal half. Frons (Fig. 6) 1.2 times as long as wide. Clypeus with median carina distinct and elevated throughout. Pronotum (Figs 1, 5) 1.9 times longer than vertex. Mesonotum 1.6 times longer than pronotum and vertex combined. Forewing (Fig. 8) 2.7 times longer than wide, with 13 apical and 7 subapical cells; RP 4 branches, MP with 5 terminals: MP11, MP12, MP2, MP3, and MP4, fork MP1+MP2 basad of fork MP3+MP4. Hind tibia with 3‒5 lateral spines; chaetotaxy of hind tarsi: 8 –9/10– 11, second segment of hind tarsus with 7 platellae.

Male genitalia. Pygofer (Figs 9, 10) symmetrical, dorsal margin concave and U-shaped ventrally, widened towards apex; in lateral view, lateral lobes triangularly extended caudally. Medioventral process mastoid ventrally. Anal segment (Figs 9, 11) long tubular, symmetrical, 2.5 times longer than wide in dorsal view; anal style finger-like, not beyond anal segment. Gonostyli (Figs 9, 10, 12) in ventral view, symmetrical, widening towards apex, apical part extended, apical margin rounded; in lateral view, “L-shaped”. Aedeagus (Figs 13-16) in total with four processes. Spinose process on left side near apex of periandrium being the longest, straight, directed ventrocephalically; right side of periandrium with a medium-sized spinose process, strongly curved, directed dorsocaudally at apex; periandrium with a medium-sized spinose process positioning slightly to left side of its dorsal margin, directed right-ventrocephalically; ventral margin of aedeagal periandrium with an extremely short spinose process, which is the shortest of all spinose processes of periandrium, hooked, curved towards right side. Endosoma moderately sclerotized, simple, generally curving left.

Female genitalia. Tergite IX (Figs 17, 18, 20) moderately sclerotized, with a large nearly elliptical wax plate. Anal segment (Figs 17, 19) rectangle, 2.2 times longer than wide in dorsal view. Gonapophysis VIII (Fig. 21) elongate, and slightly curved upwards. Gonapophysis IX (Fig. 22) with one middle tooth, denticulate portion degenerated. Gonoplac (Fig. 23) rod-like, 3.7 times longer than wide in lateral view. Posterior vagina (Figs 24, 25) elongate, with many small round, oval and oblong sclerites both in ventral and dorsal view, dispersed. Base with several relatively large sclerites, and the middle area with a longitudinally oblong sclerite in ventral view; at basal each lateral side with several relatively large sclerites respectively in dorsal view. Internal genitalia as shown in Fig. 26.

Distributions.

China (Guizhou, Hubei).

Etymology.

The specific name is derived from the Latin prefixes “brevi” and noun “spina”, referring to the ventral margin of aedeagal periandrium with an extremely short spinose process, which is the shortest of all spinose processes of the periandrium.

Remarks.

Male genitalia of T. brevispina sp. nov. is similar to T. cehengensis (Zhang & Chen), but differs in: (1) spinose process on ventral margin of periandrium being the shortest of all spinose processes of periandrium (in T. cehengensis , not the shortest one); (2) spinose process on left side near apex of periandrium being the longest, straight (in T. cehengensis , spinose process in the same position being the shortest, basal two-thirds stout and apical third arc-shaped curved); (3) medioventral process without bristles at apex (the latter with bristles); (4) forewing with 13 apical cells (the latter with 12 apical cells).

Female genitalia of T. brevispina sp. nov. is similar to T. cehengensis (Zhang & Chen), but differs in: (1) posterior vagina elongate (in T. cehengensis , the length of posterior vagina equal to the width); (2) sclerites dispersed both in ventral and dorsal view (in T. cehengensis , sclerites in ventral view mainly concentrated in the middle area and the ones in dorsal view mainly concentrated in left side); (3) Gonapophysis IX with one middle tooth, denticulate portion degenerated (in T. cehengensis , Gonapophysis IX with two middle teeth, denticulate portion with one small rounded odontoid).