Ruidocollaris rubescens, Liu, Chun-Xiang & Kang, Le, 2010

Liu, Chun-Xiang & Kang, Le, 2010, A review of the genus Ruidocollaris Liu (Orthoptera: Tettigoniidae), with description of six new species from China, Zootaxa 2664, pp. 36-60 : 48-50

Ruidocollaris rubescens sp. nov.

( Figs. 3 , 12 , 23 , 33 , 41 , 50 , 59 , 69 , 77, 85, 86)

Examined material. Holotype, 1 male, at light, China: Guizhou Prov.: Libo County, Maolan nature reserve, Yaosuo Village, Bizuo Spot, 500m, 2008. VIII.1–4, Coll. Liu Chunxiang ( IZAS); Paratype: 32 males, 8 females, same data as in holotype ( IZAS); 3 males, at light, China: Guizhou Prov.: Libo County, Maolan nature reserve, Yaogu Village, 650m, 2008. VII.26–28, Coll. Liu Chunxiang ( IZAS); 21 males, 15 females, Guangdong Prov.: Chebaling Nature Reserve, 2008. VII.24–VIII.1, Coll. Chang Jia, Liang Hongbin ( IZAS); 14 males, 6 females, China: Guangxi: Longsheng, Huaping nature reserve, Cujiang Spot, 700m, 2007. VII.15– X.5, Coll. Liu Chunxiang ( IZAS); 8 males, 7 females, China: Guangxi: Longan, Longhushan nature reserve, 2007. VIII.1-5, Coll. Liu Chunxiang ( IZAS); 3 males, 2 females, China: Hainan Island: Bawangling nature reserve, Donger, 2007. V.11–15, Coll. Liu Chunxiang ( IZAS); China: Tibet: Linzhi County, Motuo nature reserve, 10 males, 4 females, Aniqiao, 300m, 2006. VIII.13, Coll. Liu Chunxiang ( IZAS); 5 males, 3 females, Didong Village, 300m, 2006. VIII.13, Coll. Liu Chunxiang ( IZAS); 7 males, 5 females, Beibeng, 500m, 2006. VIII.18, Coll. Liu Chunxiang ( IZAS); 1 female, Chayu County, Xiachayu Town, 1500m, 2005. VIII.25, Coll. Chen Xiaolin ( IZAS); 1 male, 1 female, China: Tibet: Motuo, Beibeng, 1000m, 1974. IX.9–IX.10, Coll. Huang Fusheng ( IZAS, No. 360962); 1 male, China: Tibet: Motuo, Yuanba, 1720m, 1973. VII.10, Coll. Huang Fusheng ( IZAS, No. 360961).

Description. Male (holotype). Size large for typical phaneropterines. Pronotal disc with distinct “U”- shaped middle transverse groove lying slightly before middle, and indistinct first transverse groove and third transverse groove lying in middle; anterior margin slightly concave, posterior margin strongly angular round. Anterior femur armed with 5 spines on ventro-anterior margin; median femur armed with 8 spines on ventroanterior margin; posterior femur with 9 anterior spines on ventral margins. Anterior tibiae with 3 anterior and 6 posterior spines on dorsal margins; median tibiae with 4 anterior and 5 posterior spines on dorsal margins; posterior tibiae with 19 anterior and 21 posterior dorsal spines. Tegmen: Wings developed well. Hind wing longer than tegmen. Tegmen extending beyond apex of hind femur. Radial vein of tegmen with one other oblique branch reaching posterior margin after radial sector vein ( Fig. 85 ).

Male stridulatory vein long, with stridulatory file composed of about 110 densely arranged teeth, which are gradually becoming smaller from middle to both ends ( Fig. 23 ). Tenth abdominal tergum with apical margin truncated, epiproct tongue-shaped. Cerci gradually becoming thinner from base to middle, with apex abruptly constricted, obtuse ( Fig. 50 ). Subgenital plate much wider than long, apical margin with a small triangular notch at middle; styli robust, less than quarter of subgenital plate ( Fig. 59 ).

Female tenth abdominal tergum not produced, with dorso-medial groove; posterior margin obtusely emarginated. Epiproct wider than long, triangular. Cerci conical, slightly curved, gradually tapering in pointed apex. Ovipositor, slightly shorter than pronotum, gradually upcurved, with regularly arranged rows of granulations on lateral surface; apical part tapering, with obliquely truncated ventral margin, and both margin serrate; apex pointed ( Fig. 69 ). Subgenital plate triangular, wider than long; lateral margins approximately straight; apex obtuse (Fig. 77).

Coloration ( Figs. 85, 86 ). Light green. Tegmen light green. Tympana of anterior tibiae slightly brown. Apical part of posterior tibiae including apical spur and tarsi dark brown. Each abdominal tergum possessing converse large brown triangular spot, with green posterior margin. Male and female tenth abdominal tergum, epiproct, paraproct and cerci brown. Female ovipositor with reddish brown base and black apex.

Variation. Rare specimens with some small slightly yellow spots in Costal area and Radial-Medial area.

Measurements (mm). Length of body: male 35.5, female 35.5; of pronotum: male 10.1, female 11.4; height of paranota: male 8.1; length of paranota: male 6.4; of tegmen: male 58.5, female 56.8; largest width of tegmen: male 15.5, female 25.5; length of hind wing: male 63.5, female 62.5; of posterior femur: male 29.0, female 30.0; of apical style of male: 1.26; length of ovipositor 8.5; largest width of ovipositor 4.0.

Etymology. The name is composed of “ruber” and its suffix, and shows that the new species could be rapidly distinguished from its most close relative R. truncatolobata by the brown red hind tarsi and abdominal apex including tenth abdominal tergum, epiproct, paraproct and cerci.

Discussion. R. rubescens sp. nov. is sympatric with and was erroneously identified as type species R. truncatolobata (Brunner von Wattenwyl) ( Liu & Yin 2004). It most resembles R. truncatolobata in the size, structure of head, pronotum, and wing, and the difference between them is too small to be discerned. It is only distinguished from R. truncatolobata by the male subgenital plate approximately wide as long, especially with styli as short as one fifth length of the subgenital plate, the female ovipositor slightly shorter than pronotum, and the brown red hind tarsi and abdominal apex including tenth abdominal tergum, epiproct, paraproct and cerci.

Distribution ( Fig. 98 ). China: Hainan (Bawangling), Guangxi (Longan), Guangdong (Nanling), Guizhou (Libo), Tibet (Muotuo).

Figures

FIGURE 98. Distribution map of Ruidocollaris species from China.

FIGURES 1 – 9. photograph of male left stridulatory area in dorsal view of the genus Ruidocollaris Liu. Figs. 1, 2, R. truncatolobata (Brunner von Wattenwyl) (Fig. 1 from Sichuan Prov., Fig. 2 from Libo in Guizhou Prov.); Fig. 3, R. rubescens sp. nov. (holotype); Fig. 4, R. longicaudalis sp. nov. (paratype from Tibet); Fig. 5, R. convexipennis (Caudell) (from Emeishan, Sichuan Prov.); Fig. 6, R. parapennis sp. nov. (holotype); Fig. 7, R. obscura (Liu) (from Maoershan, Guangxi Prov.); Fig. 8, R. apennis sp. nov. (holotype); Fig. 9, R. latilobalis sp. nov. (holotype).

FIGURES 10 – 18, 20, photograph of male right stridulatory area in dorsal view of the genus Ruidocollaris Liu; Fig. 19, photograph of male left stridulatory area in dorsal view. Figs. 10, 11, R. truncatolobata (Brunner von Wattenwyl) (Fig. 10 from Sichuan Prov., Fig. 11 from Libo in Guizhou Prov.); Fig. 12, R. rubescens sp. nov. (holotype); Fig. 13, R. longicaudalis sp. nov. (paratype from Tibet); Fig. 14, R. convexipennis (Caudell) (from Emeishan, Sichuan Prov.); Fig. 15, R. parapennis sp. nov. (holotype); Fig. 16, R. obscura (Liu) (from Maoershan, Guangxi Prov.); Fig. 17, R. apennis sp. nov. (holotype); Fig. 18, R. latilobalis sp. nov. (holotype); Figs 19 – 20, R. ferruginescens sp. nov. (holotype).

FIGURES 21 – 24. male stridulatory file on underside of left tegmen in ventral view of the genus Ruidocollaris Liu. Figs. 21, 22, R. truncatolobata (Brunner von Wattenwyl) (Fig. 21 from Sichuan Prov., Fig. 22 from Libo in Guizhou Prov.); Fig. 23, R. rubescens sp. nov. (holotype); Fig. 24, R. longicaudalis sp. nov. (paratype from Tibet). (scale bar = 1 mm).

FIGURES 31 – 39. male abdominal apex of the genus Ruidocollaris Liu in lateral view. Figs. 31, 32, R. truncatolobata (Brunner von Wattenwyl) (Fig. 31 from Sichuan Prov., Fig. 32, from Libo in Guizhou Prov.); Fig. 33, R. rubescens sp. nov. (holotype); Fig. 34, R. longicaudalis sp. nov. (paratype from Tibet); Fig. 35, R. convexipennis (Caudell) (from Emeishan, Sichuan Prov.); Fig. 36, R. parapennis spp. nov. (holotype); Fig. 37, R. obscura (Liu) (from Maoershan, Guangxi Prov.); Fig. 38, R. apennis sp. nov. (holotype); Fig. 39, R. latilobalis sp. nov. (holotype). (scale bar = 1 mm).

FIGURES 40 – 47. male abdominal apex of the genus Ruidocollaris Liu in dorsal view; Fig. 48, male abdominal apex of the genus Ruidocollaris Liu in lateral view. Fig. 40, R. truncatolobata (Brunner von Wattenwyl) (from Libo in Guizhou Prov.); Fig. 41, R. rubescens sp. nov. (holotype); Fig. 42, R. longicaudalis sp. nov. (paratype from Tibet); Fig. 43, R. convexipennis (Caudell) (from Emeishan, Sichuan Prov.); Fig. 44, R. parapennis sp. nov. (holotype); Fig. 45, R. apennis sp. nov. (holotype); Fig. 46, R. latilobalis sp. nov. (holotype); Figs. 47 – 48, R. ferruginescens sp. nov. (holotype). (scale bar = 1 mm).

FIGURES 49 – 57. male left cerci of the genus Ruidocollaris Liu in dorsal view. Fig. 49, R. truncatolobata (Brunner von Wattenwyl) (from Libo in Guizhou Prov.); Fig. 50, R. rubescens sp. nov. (holotype); Fig. 51, R. longicaudalis sp. nov. (paratype from Tibet); Fig. 52, R. convexipennis (Caudell) (from Emeishan, Sichuan Prov.); Fig. 53, R. parapennis sp. nov. (holotype); Fig. 54, R. obscura (Liu) (from Maoershan, Guangxi Prov.); Fig. 55, R. apennis sp. nov. (holotype); Fig. 56, R. latilobalis sp. nov. (holotype); Fig. 57, R. ferruginescens sp. nov. (holotype). (scale bar = 1 mm).

FIGURES 58 – 66. male subgenital plate of the genus Ruidocollaris Liu in ventral view. Fig. 58, R. truncatolobata (Brunner von Wattenwyl) (from Libo in Guizhou Prov.); Fig. 59, R. rubescens sp. nov. (holotype); Fig. 60, R. longicaudalis sp. nov. (paratype from Tibet); Fig. 61, R. convexipennis (Caudell) (from Emeishan, Sichuan Prov.); Fig. 62, R. parapennis sp. nov. (holotype); Fig. 63, R. obscura (Liu) (from Maoershan, Guangxi Prov.); Fig. 64, R. apennis sp. nov. (holotype); Fig. 65, R. latilobalis sp. nov. (holotype); Fig. 66, R. ferruginescens sp. nov. (holotype). (scale bar = 1 mm).

FIGURES 67 – 72. female abdominal apex of the genus Ruidocollaris Liu in lateral view. Figs. 67, 68, R. truncatolobata (Brunner von Wattenwyl) (Fig. 67 from Sichuan Prov., Fig. 68 from Libo in Guizhou Prov.); Fig. 69, R. rubescens sp. nov. (paratype from Libo in Guizhou Prov.); Fig. 70, R. longicaudalis sp. nov. (paratype from Tibet); Fig. 71, R. convexipennis (Caudell) (from Emeishan, Sichuan Prov.); Fig. 72, R. parapennis sp. nov. (paratype from Tibet). (scale bar = 1 mm).

FIGURES 83 – 88. whole body of the genus Ruidocollaris Liu in lateral view. Figs. 83, 85, 87, male; Figs. 84, 86, 88, female. Figs. 83, 84, R. truncatolobata (Brunner von Wattenwyl) (Fig. 83 from Wuyishan in Fujian Prov., Fig. 84 from Libo in Guizhou Prov.); Figs. 85, 86, R. rubescens sp. nov. (paratype from Libo in Guizhou Prov.); Figs. 87, 88, R. longicaudalis sp. nov. (Fig. 87, paratype; Fig. 88, holotype). (Fig. 83 by Dingliang).