Chlaenioctenus

Liu, Ye, Liang, Hongbin, Kavanaugh, David H. & Yang, Maofa, 2010, Key to species of the subgenus Chlaenioctenus (Coleoptera: Carabidae: Chlaeniini: Chlaenius), with description of two new species, Zootaxa 2397, pp. 15-28 : 17

Key to the species of subgenus Chlaenioctenus

1 Femora wholly black ( Figs. 10 , 15 ).............................................................................................................................. 2

- Femora more or less yellow in the middle portion ( Figs. 2, 4 , 6, 8 , 12)....................................................................... 4

2 Elytron with a yellow spot in the middle ( Fig. 9 ), intervals glabrous in the middle .................................................... 3

- Elytron with a yellow spot at apical third, intervals wholly pubescent ( Figs. 13, 14 ); pronotum pubescent, with metallic green lustre at sides ( Figs. 32, 33 ). China (Jiangxi)..................................................... C. freyi Jedliċka, 1960

3 Elytral intervals with a row of punctures at each lateral side ( Fig. 37 ); pronotum very finely punctate ( Fig. 31 ). Myanmar............................................................................................................................... C. pectinipes Bates, 1892

- Elytral intervals with irregular punctures at each lateral side; pronotum coarsely punctate (based on original descrip- tion and photo). Thailand.................................................................................................. C. bilyi Kirschenhofer, 2009

4 Elytron with a yellow spot in the middle ( Figs. 5, 7 ) ................................................................................................... 5

- Elytron with a yellow spot at apical third ( Figs. 1, 3 ) or behind the middle (Fig. 11) .................................................6

5 Pronotum glabrous. India (Assam) ........................................................................................... C. eneides Bates, 1892

- Pronotum pubescent ( Fig. 30 ); elytral intervals pubescent ( Fig. 36 ). China (Yunnan) ......... C. rotundithorax sp. nov.

6 Elytral intervals glabrous in the middle, pubescent laterally only................................................................................7

- Elytral intervals wholly pubescent ( Fig. 35 ); pronotum pubescent ( Fig. 29 ); genae pubescent ( Fig. 20 ). China (Tai- wan) .............................................................................................................................................. C. piligenys sp. nov.

7 Pronotum coarsely punctate......................................................................................... C. sehnali Kirschenhofer, 2008

- Pronotum finely punctuate ( Fig. 34 ); interval sparsely pubescent ( Fig. 39 ). Myanmar (Kachin).................................. ........................................................................................................................... C. schillhammeri Kirschenhofer, 2003

Figures

FIGURES 9 – 10. Chlaenius pectinipes Bates, 1892. 9) Holotype, male, dorsal view. 10) Holotype, male, ventral view. FIGURES 11 – 12. Chlaenius schillhammeri Kirschenhofer, 2003. 11) Holotype, female, dorsal view. 12) Paratype, female, ventral view. Scale line = 5.0 mm.

FIGURES 13 – 15. Chlaenius freyi Jedliċka, 1960. 13) Holotype, male, dorsal view. 14) female, in IOZ, dorsal view. 15) female, in IOZ, ventral view. Scale line = 5.0 mm.

FIGURES 1 – 4. Chlaenius piligenys sp. nov. 1) Holotype, male, dorsal view. 2) Holotype, male, ventral view. 3) Paratype, female, dorsal view 4) Paratype, female, ventral view. Scale line = 5.0 mm.

FIGURES 5 – 8. Chlaenius rotundithorax sp. nov. 5) Holotype, male, dorsal view. 6) Holotype, male, ventral view. 7) Paratype, female, dorsal view. 8) Paratype, female, ventral view. Scale line = 5.0 mm

FIGURES 29 – 34. Pronotum of Chlaenius (Chlaenioctenus) species. 29) C. piligenys, holotype. 30) C. rotundithorax, holotype. 31) C. pectinipes, holotype. 32) C. freyi, holotype. 33) C. freyi, IOZ. 34) C. schillhammeri, holotype. Scale line = 1.0 mm.

FIGURES 35 – 39. Elytral intervals of Chlaenius (Chlaenioctenus) species. 35) C. piligenys, holotype. 36) C. rotundithorax, holotype. 37) C. pectinipes, holotype. 38) C. freyi, holotype. 39) C. schillhammeri, holotype. Scale line = 1.0 mm.

FIGURES 20 – 25. Heads of Chlaenius (Chlaenioctenus) species. 20) C. piligenys, holotype, white arrow indicating the pubescence on gena. 21) C. rotundithorax, holotype. 22) C. pectinipes, holotype. 23) C. freyi, holotype. 24) C. freyi, IOZ. 25) C. schillhammeri, holotype. Scale line = 1.0 mm.