Bioramix Bates, 1879

Bai, Xing-Long & Ren, Guo-Dong, 2020, Revision of the genus Bioramix Bates, 1879 (Coleoptera: Tenebrionidae: Platyscelidini) from China, Zootaxa 4815 (1), pp. 1-102 : 6

Key to known species of the genus Bioramix Bates, 1879 from China (based on males)

1 Underside of protibiae not concave at apex................................................................. 2

- Underside of protibiae concave at apex................................................................... 22

2 Pronotum spherical ( Fig. 319 ); elytra without humeri; abdominal ventrites hardly with setae................................................................................ Bioramix (Tricholeipopleura) lucidicollis ( Kraatz, 1882)

- Pronotum transverse ( Fig. 190 ), cordiform ( Fig. 195 ), rectangle ( Fig. 228 ) or trapeziform ( Fig. 232 ); elytra with humeri; abdominal ventrites with setae............................................................................. 3

3 Prosternal process sharply sloping behind procoxae, apex not projecting beyond level of procoxae in lateral view; pronotum flattened and depressed at sides.......................................................................... 4

- Apex of prosternal process projecting beyond level of procoxae in lateral view; or pronotum neither flattened nor depressed at sides when apex of prosternal process not projecting beyond level of procoxae in lateral view......................... 6

4 Pronotum widest at base or anterior to base [posterior to middle]; parameres straight in lateral view ( Fig. 52 in Kaszab, 1940)................................................................... Bioramix (Bioramix) ovalis Bates, 1879

- Pronotum widest at middle; apex of parameres curved dorsally in lateral view ( Figs 26, 28 ).......................... 5

5 Each elytron with 9 distinct longitudinal carinae from base to apex; distal part of parameres weakly curved dorsally in lateral view ( Fig. 28 )................................................ Bioramix (Bioramix) rotundicollis ( Kaszab, 1940)

- Elytra with indistinct longitudinal carinae or traces; distal part of parameres strongly curved dorsally in lateral view ( Fig. 26 ).......................................................... Bioramix (Bioramix) oblongula ( Fairmaire, 1898)

6 Elytral surface without metallic sheen; pronotal surface without metallic sheen or weakly shining................................................................................ Bioramix (Planoplatyscelis) pamirensis Bates, 1879

- Elytral surface with metallic sheen; or pronotal surface with metallic sheen or strongly shining........................ 7

7 Pronotum widest at base...................................... Bioramix (Cardiobioramix) splendida Egorov, 2006

- Pronotum widest at middle or anterior to middle............................................................. 8

8 Pronotum widest anterior to middle....................................................................... 9

- Pronotum widest at middle............................................................................. 10

9 Pronotal and elytral surface with yellow setae; pronotal surface with metallic sheen, weakly flattened at sides, punctures elongate or merging into longitudinal wrinkles at sides; apex of prosternal process projecting beyond level of procoxae in lateral view; elytral surface with sparse wrinkles; base of parameres slightly wider than apex, distal part nearly straight in lateral view ( Figs 31–32 )............................................. Bioramix (Cardiobioramix) championi ( Reitter, 1891)

- Pronotal and elytral surface without setae; pronotal surface without metallic sheen, not flattened at sides, punctures round, not merging into wrinkles at sides; apex of prosternal process not projecting beyond level of procoxae in lateral view; elytral surface with dense wrinkles; base of parameres much wider than apex, distal part weakly curved ventrally in lateral view ( Figs 51–52 )............................................... Bioramix (Cardiobioramix) subaenescens ( Schuster, 1923)

10 Pronotal and elytral surface with longer yellow setae......... Bioramix (Cardiobioramix) globipunctata Bai & Ren, 2016

- Pronotal and elytral surface without or with nearly invisible setae.............................................. 11

11 Pronotal punctures merging into longitudinal wrinkles at sides........... Bioramix (Cardiobioramix) kabaki Egorov, 2006

- Pronotal punctures not merging into longitudinal wrinkles at sides............................................. 12

12 Apex of prosternal process projecting beyond level of procoxae in lateral view................................... 13

- Apex of prosternal process not projecting beyond level of procoxae in lateral view................................ 19

13 Elytral surface with dense and coarse wrinkles, without rows of punctures...................................................................................................... Bioramix (Cardiobioramix) longicornis sp. nov.

- Elytral surface with sparse and fine wrinkles, indistinct rows of punctures....................................... 14

14 Lateral sides of pronotum widely flattened at middle................... Bioramix (Cardiobioramix) tenuitarsus sp. nov.

- Lateral sides of pronotum not flattened or narrowly flattened along lateral margins................................ 15

15 Apex of prosternal process long and cylindrical............................................................ 16

- Apex of prosternal process short and sharply or weakly obtuse................................................ 17

16 Posterior angles of pronotum rectangular, posterior margin nearly straight; metatibiae weakly curved; parameres narrowing forward from base laterally ( Fig. 8 in Li et al., 2016b)...................................................................................................... Bioramix (Cardiobioramix) jinchuanensis Li, Egorov & Shi, 2016

- Posterior angles of pronotum weakly obtuse, posterior margin protruding backward at middle; metatibiae strongly curved; parameres narrowing forward from middle laterally ( Fig. 47 )............. Bioramix (Cardiobioramix) prolongata sp. nov.

17 Lateral sides of pronotum narrowly flattened, strongly semicircular protruding outward at middle; elytral surface with rows of punctures as coarse as those on pronotum.......................... Bioramix (Cardiobioramix) asidioides Bates, 1879

- Lateral sides of pronotum not flattened, weakly arched protruding outward at middle; elytral surface with rows of punctures as fine as or large than those on rest of elytral surface.......................................................... 18

18 Pronotal surface with fine punctures slightly large than those on elytra; elytra convex, surface with indistinct rows of punctures or without; parameres wider, weakly narrowing forward from middle laterally ( Fig. 45 )............................................................................ Bioramix (Cardiobioramix) maoxianensis Li, Egorov & Shi, 2016

- Pronotal surface with coarse punctures much large than those on elytra, densely at sides; elytra more flattened, surface with rows of shallow punctures; parameres narrower, strongly narrowing forward from base laterally ( Fig. 29 )............................................................................. Bioramix (Cardiobioramix) barkamica sp. nov.

Figures

FIGURES 316–323. Habitus and type labels. 316–319. Habitus: 316–317. Bioramix yushuana (316. male, holotype; 317. female, paratype); 318. B. pamirensis (male); 319. B. lucidicollis (male). 320–323. Type labels: 320. B. oblongula; 321. B. ovalis (photograph by Keita Matsumoto); 322. B. rotundicollis; 323. Botiras punctatellus (= B. asidioides).

FIGURES 190–195. Habitus. 190–191. Bioramix oblongula (males; 190. lectotype); 192. B. ovalis (male, lectotype, photograph by Keita Matsumoto); 193–194. B. rotundicollis (males; 193. syntype); 195. B. asidioides (male, lectotype of Botiras punctatellus).

FIGURES 226–231. Habitus. 226. Bioramix baxoica (female, paratype); 227–228. B. crypticoides (males; 227. lectotype); 229–230. B. cupreoviridis (229. male, holotype; 230. female, paratype); 231. B. exsertigenae (male, holotype).

FIGURES 232–237. Habitus. 232–233. Bioramix frivaldszkyi (males; 232. syntype); 234–235. B. homoplasta (234. male, holotype; 235. female, paratype); 236–237. B. hongyuanensis (males; 236. holotype).

FIGURES 49–73. Parameres of male aedeagus in dorsal and lateral view. 49–50. Bioramix splendida; 51–52. B. subaenescens; 53–55. B. szetschuana; 56–57. B. kulzeri (= B. szetschuana, photograph by Christoph Germann, without measuring scale); 58–59. B. tenuitarsus; 60–61. B. aenescens; 62–63. B. banbarensis; 64–65. B. baxoica; 66–67. B. crypticoides; 68–69. B. cupreoviridis; 70–71. B. exsertigenae; 72–73. B. frivaldszkyi.

FIGURES 25–48. Parameres of male aedeagus in dorsal and lateral view. 25–26. Bioramix oblongula; 27–28. B. rotundicollis; 29–30. B. barkamica; 31–32. B. championi; 33–34. B. chinensis; 35–36. B. gibbosa; 37–38. B. globipunctata; 39–40. B. liupanshana (= B. globipunctata); 41–42. B. korschefskyi; 43–44. B. longicornis; 45–46. B. maoxianensis; 47–48. B. prolongata.

FIGURES 7–8. Characters. 7. Bioramix cupreoviridis (male), 8. B. exsertigenae (male): A. antenna; B. pronotum; C. protarsi; D. protibiae; E. mesotibiae; F. mesotarsi; G. metatibiae; H. metatarsi; I–J. aedeagus in dorsal and lateral view.