Protoapterodela Matalin & Wiesner, 2024

Matalin, Andrey V., Wiesner, Jürgen, Xiong, Xinxin & Araki, Takashi, 2024, Revision of the genus Apterodela Rivalier, 1950 (Coleoptera, Cicindelidae), Zootaxa 5405 (3), pp. 301-353 : 328

Subgenus Protoapterodela Matalin & Wiesner , subgen. nov.

Type species. Cicindela shirakii W. Horn, 1927: 41 .

Differential diagnosis. A new subgenus is clearly distinguished from the nominotypical one by distinctly transverse pronotum and rectangular shoulders ( Fig. 273 ) as well as by developed wings ( Figs 144, 145 vs. Fig. 143 ) and blunt mt of the internal sack ( Figs 242, 243 , 256, 257 , 263, 264 vs. Figs 237–241 , 251–255 , 258–262 ).

Description. TL = 12.5–18.0 mm (mean = 13.68 mm, n = 17).

Labrum clearly ( Figs 97, 102 ) or slightly ( Figs 96, 101 ) tridentate, with 4–8 long submarginal setae.

Pronotum distinctly transverse ( Figs 136, 137, 141, 142 )—PW/PL = 1.1–1.22 (mean = 1.17, n = 34) ( Fig. 273 ). Macropterous ( Figs 144, 145 ).

Elytra with wide and rectangular shoulders, EW/EHW = 1.2–1.4 (mean = 1.28, n = 34) ( Fig. 273 ); lacking subapical notch ( Figs 180–182, 190–192 ). White elytral pattern distinctly or largely reduced and presented by basal portion of apical lunule (supra-apical spot), and by relatively long, smoothly curved centro-lateral or small often virtually invisible marginal or apical portion of middle band; humeral lunule absent ( Figs 180–182, 190–192 ), rarely as indistinct, small sub-humeral spot.

Internal sac of aedeagus with relatively short, flat, and blunt mt ( Figs 242, 243 , 249, 250 , 256, 257 , 263, 264 ).

Figures

FIGURES 273–278. Morphometric features of Apterodela spp.: 273–275—relation of the proportions in different species (273—relation of the proportions PW/PL and EW/EHW; 274, 275—relation of the proportions HW/PW and TL/BH; 274— males; 275—females; yellow rhombs—A. (Protoapterodela) unipunctata; red crosses—A. (Protoapterodela) shirakii; light green rectangles—A. (s. str.) ovipennis; lilac quadrates—A. (s. str.) bivirgulata; green triangles—A. (s. str.) lobipennis; blue circles—A. (s. str.) kazantsevi; orange rhombs—A. (s. str.) alopecomma sp. nov.; light blue asterisks—A. (s. str.) latissima sp. nov.; open symbols—females; solid symbols—males); 276–278—differences of the body proportions (276, 277—TL/BH; 278—HW/PW; m—males; f—females; small symbols in the rectangles—medians; rectangles—25–75 percentiles; whiskers— min–max; significantly different samples see in the Tables 1, 2).

FIGURES 143–145. Apterodela spp., right hind wings: 143—A. (s. str.) bivirgulata bivirgulata (China, Zhejiang, Dao Shan Island); 144—A. (Protoapterodela) unipunctata (USA, TN, Great Smoky Mts N.P.); 145—A. (Protoapterodela) shirakii (China, Taiwan, Alishan): 1—male; 2, 3—females.

FIGURES 237–243. Apterodela spp., internal sack, dorsal view: 237—A. (s. str.) ovipennis (Japan, Itoigawa, Agero); 238—A. (s. str.) bivirgulata bivirgulata (China, Chin Kiang); 239—A. (s. str.) kazantsevi (China, Jiangxi, Jinggangshan); 240—A. (s. str.) lobipennis (China, Hubei, Enshi); 241—A. (s. str.) alopecomma sp. nov. (China, Sichuan, Qingcheng Hou Shan); 242—A. (Protoapterodela) shirakii (China, Taiwan, Alishan); 243—A. (Protoapterodela) unipunctata (USA, TN, Great Smoky Mts N.P., Greenbrier Cove); 239, 241—paratypes. Without scales. The abbreviations of humps and sclerites see in the text.

FIGURES 251–257. Apterodela spp., internal sac, right lateral view: 251—A. (s. str.) ovipennis (Japan, Itoigawa, Agero); 252—A. (s. str.) bivirgulata bivirgulata (China, Chin Kiang); 253—A. (s. str.) kazantsevi (China, Jiangxi, Jinggangshan); 254— A. (s. str.) lobipennis (China, Hubei, Enshi); 255—A. (s. str.) alopecomma sp. nov. (China, Sichuan, Qingcheng Hou Shan); 256—A. (Protoapterodela) shirakii (China, Taiwan, Alishan); 257—A. (Protoapterodela) unipunctata (USA, TN, Great Smoky Mts N.P., Greenbrier Cove); 253, 255—paratypes. Without scales. The abbreviations of humps and sclerites see in the text.

FIGURES 258–264. Apterodela spp., internal sack, ventral view: 258—A. (s. str.) ovipennis (Japan, Itoigawa, Agero); 259—A. (s. str.) bivirgulata bivirgulata (China, Chin Kiang); 260—A. (s. str.) kazantsevi (China, Jiangxi, Jinggangshan); 261—A. (s. str.) lobipennis (China, Hubei, Enshi); 262—A. (s. str.) alopecomma sp. nov. (China, Sichuan, Qingcheng Hou Shan); 263—A. (Protoapterodela) shirakii (China, Taiwan, Alishan); 264—A. (Protoapterodela) unipunctata (USA, TN, Great Smoky Mts N.P., Greenbrier Cove); 260, 262—paratypes. Without scales. The abbreviations of humps and sclerites see in the text.

FIGURES 83–102. Apterodela spp., labrum: 83, 84, 88, 89—A. (s. str.) ovipennis (83, 88—Japan, Itoigawa city, Agero; 84, 89—Japan, Honsu, Mooka); 85–87, 90–92—A. (s. str.) lobipennis (85—China, Hubei, Chang Yang; 86—China, Hubei, Ichang; 87, 92—China, Hubei, Enshi; 90—China, Jiangxi, Kiu Kiang; 91—China, Hubei, Dabie Shan); 93, 98—A. (s. str.) kazantsevi (93—China, Jiangxi, Jinggangshan; 98—China, Jiangxi, Wufugang); 94, 99—A. (s. str.) latissima sp. nov. (China, Yunnan, Xishangbana); 95, 100—A. (s. str.) alopecomma sp. nov. (95—China, Sichuan, Qingcheng Hou Shan; 100—China, Sichuan, Guan Xian); 96, 101—A. (Protoapterodela) shirakii (China, Taiwan, Alishan); 97, 102—A. (Protoapterodela) unipunctata (USA, TN, Great Smoky Mts N.P.); 83–87, 93–97, 99—males; 88–92, 98, 100–102—females; 90—neotype; 93–95—holotypes; 99, 100—paratypes.

FIGURES 123–142. Apterodela spp., pronotum: 123, 128,—A. (s. str.) ovipennis (123—Japan, Honsu, Mooka; 128—Japan, Itoigawa city, Agero); 124–127, 129–132—A. (s. str.) lobipennis (124—China, Hubei, Chang Yang; 125—China, Hubei, Ichang; 126—China, Kiang-Si [= Jiangxi]; 127, 132—China, Hubei, Enshi; 129—China, Jiangxi, Kiu Kiang; 130—China, Hubei, Dabie Shan; 131—China, Kiang-Si [= Jiangxi], Yao-chow); 133, 138—A. (s. str.) kazantsevi (133—China, Jiangxi, Jinggangshan; 138—China, Jiangxi, Wufugang); 134, 139—A. latissima sp. nov. (China, Yunnan, Xishangbana); 135, 140— A. (s. str.) alopecomma sp. nov. (135—China, Sichuan, Qingcheng Hou Shan; 140— China, Sichuan, Guan Xian); 136, 141—A. (Protopterodela) shirakii (China, Taiwan, Alishan); 137, 142—A. (Protoapterodela) unipunctata (USA, TN, Great Smoky Mts N.P.); 123–127, 133–137, 139—males; 128–132, 138, 140–142—females; 133–135—holotypes; 139, 140—paratypes.

FIGURES 173–192. Apterodela spp., left elytron: 173–179, 183–189—A. (s. str.) bivirgulata occidentalis ssp. nov. (173— China, Kansu, eastern part of Kuku nor; 183, 184—China, Gansu, Hweisin; 174, 175, 185—China, Gansu, Hoei-Sienn; 176 – China, Henan, Donghe-cun; 177, 187—China, Shanxi, Zhong-Tiao-Shan; 178, 188—China, Inner Mongolia, Hua-Shu-Ye; 186—China, Gansu, Wangziguan; 179, 189—China, Sichuan, Daheishan); 180, 181, 190, 191—A. (Protoapterodela) shirakii (180—China,Taiwan,Tattka;190—China,Taiwan,Roeichi;181, 191—China,Taiwan,Alishan);182,192—A.(Protoapterodela) unipunctata (USA, TN, Great Smoky Mts N.P.); 173–182—males; 183–192—females; 183— holotypes; 173–175, 178, 179, 184–189—paratypes; 180—lectotype; 190—paralectotype.

FIGURES 244–250. Apterodela spp., internal sac, left lateral view: 244—A. (s. str.) ovipennis (Japan, Itoigawa, Agero); 245— A. (s. str.) bivirgulata bivirgulata (China, Chin Kiang); 246—A. (s. str.) kazantsevi (China, Jiangxi, Jinggangshan); 247—A. (s. str.) lobipennis (China, Hubei, Enshi); 248—A. (s. str.) alopecomma sp. nov. (China, Sichuan, Qingcheng Hou Shan); 249—A. (Protoapterodela) shirakii (China, Taiwan, Alishan); 250—A. (Protoapterodela) unipunctata (USA, TN, Great Smoky Mts N.P., Greenbrier Cove); 246, 248—paratypes. Without scales. The abbreviations of humps and sclerites see in the text.