Chlaenius Lithochlaenius chuanqianensis Liu & Liang, 2011

Valim, Ye, Kavanaugh, David H., Shi, Hongliang & Liang, Hongbin, 2011, A key to species of subgenus Lithochlaenius (Coleoptera, Carabidae, Chlaeniini, Chlaenius), with descriptions of three new species, ZooKeys 128, pp. 15-52 : 19-20

Chlaenius Lithochlaenius chuanqianensis Liu & Liang sp. n. Figs 16-17 52 66 80 94-95 117-118 146, 150 158

Types.

Holotype: male (IZCAS), "China, Guizhou, Xishui County, Dabaitang, 600m"/ "IOZ & Guizhou Univ. Joint Expedition, 2000.9.24, Liang H.B" / ""Holotype, Chlaenius (Lithochlaenius) chuanqianensis Liu & Liang sp. n."" [red label]. Paratypes: Total 14 specimens. 1 female (IZCAS), "China, Guizhou, Xishui County, Dabaitang, 550m"/ "IOZ & Guizhou Univ Joint Expedition, 2000.9.27, Liang H. B."; 1 female (HBUM), "China, Guizhou, Xishui County, Dabaitang"/ "2000. IX. 25-29, collector Ren G. D."; 1 male (IZCAS), "China, Guizhou, Xishui County, Chengzhai, Hongqi village, 28.419033, 106.273766 "/ "2009.10.8, Liu Y. & Shi H. L."; 1 female (IZCAS), "Sichuan, Ya-an"; / ""1990.VII.3, Xie Weiping collector"; 1 male (IZCAS), "Sichuan, Xinjin" / ""1981.VI.13, Liu Hongjiang collector"; 1 female (IZCAS), "Sichuan, Anxian"; 1 male (IZCAS), "Sichuan, Shehong" / ""1980.7.7"; 3 males and 3 females (IZCAS), "Sichuan, Yajiang, Hekou Town, Shanbeihou, Yalongjiang, N30.00020, E101.01526" / "2009.5.28 N, Liang Hongbin coll."; 1 female (IZCAS), "Sichuan, Yajiang, Hekou Town, Shanbeihou, Yalongjiang, E30.00020, N101.01526"/ "2009.5.27, Day, Liang Hongbin coll.". Each paratype with an additional yellow label: ""Paratype, Chlaenius (Lithochlaenius) chuanqianensis Liu & Liang sp. n."".

Diagnosis.

Antennomere 1 coniform ( Fig. 52 ); color of antennomere 1 yellow or brown; intervals 1-5 glabrous medially, with one row of pubescence laterally ( Fig. 80 ); aedeagus stout, apical lamella round ( Fig. 117 ), thin and straight in lateral view ( Fig. 118 ).

Description.

Total length = 16.0-17.0 mm (mean = 16.8), width = 5.60-6.13 mm (mean = 5.86); HW = 2.60-2.95 mm (mean = 2.82), EYL = 0.95-1.10 mm (mean = 1.03), ratio Ant3/Ant1 = 1.56-1.72 (mean = 1.64), PL/PW = 0.76-0.84 (mean = 0.81), EL/EW = 1.68-1.91 (mean = 1.79), EL/ PL = 1.37-1.49 (mean = 1.42).

Head and pronotum black with green or coppery metallic luster; elytra black; ventral surface black; mandibles and trochanters dark brown; antennomere 1, femora, tibiae yellow to brown; antennomeres 2-11, palpi and tarsi dark brown to nearly black.

Head with vertex smooth medially, coarsely punctate behind eyes; labrum slightly emarginate at apex; antennomere 1 coniform ( Fig. 52 ). Pronotum with disk smooth, very sparsely punctate along midline in a few specimens; lateral furrow sparsely pubescent and coarsely punctate; medial longitudinal furrow deep, impunctate; basal foveae narrow, deep, sparsely pubescent and punctate. Elytral intervals convex, intervals 1-5 glabrous medially, with a row of setae laterally ( Fig. 80 ), pubescent in apical one-fifth in a few specimens, intervals 6-9 pubescent throughout; striae deep, punctate; humeral angles obtuse ( Fig. 66 ). Abdominal sterna IV-VI sparsely pubescent medially, densely pubescent laterally; sternum VII narrowly rounded apically in both sexes ( Figs 94-95 ). Lamella of aedeagus round at apex ( Fig. 117 ), thin and straight in lateral view ( Fig. 118 ).

Etymology.

The Latinized name chuanqianensis refers to type localities of this new species in "chuanqian" regions, of which "chuan" refers to Sichuan Province and "qian" refers to Guizhou Province).

Geographical distribution.

Fig. 158 . Known only from Guizhou and Sichuan Provinces, China.

Remarks.

Mensural data cited in the description were obtained from the holotype and all paratypes.

Members of this species are most similar to those of Chlaenius wrasei in shape of antennomere 1 and elytral pubescence, but differ from the latter in color of antennomere 1 (paler than antennomere 3 in Chlaenius chuanqianensis , antennomeres 1 and 3 concolorous in Chlaenius wrasei ) and orientation of the apical lamella of the aedeagus of males (straight in Chlaenius chuanqianensis , bent ventrally in Chlaenius wrasei ).

They are also similar to Chlaenius leishanensis members in pubescence of elytral intervals, but different from the latter in having yellow tibiae (black or dark brown in Chlaenius leishanensis ), and males have a thin aedeagal lamella of the aedeagus (lamella thick in Chlaenius leishanensis males).

Figures

Figure 158. Map showing the known geographical distributions of Chlaenius (Lithochlaenius) spp.

Figures 16 - 21. Habitus of Chlaenius (Lithochlaenius) spp 16 Chlaenius chuanqianensis sp. n., holotype, male, dorsal view 17 Chlaenius chuanqianensis sp. n., holotype, male, ventral view 18 Chlaenius linwensini sp. n., holotype, male, dorsal view 19 Chlaenius linwensini sp. n., holotype, male, ventral view 20 Chlaenius propeagilis sp. n., holotype, male, dorsal view 21 Chlaenius propeagilis sp. n., holotype, male, ventral view. Scale line = 5.0 mm.

Figures 52 - 65. Antennomere 1 of Chlaenius (Lithochlaenius) species 52 Chlaenius chuanqianensis sp. n., holotype 53 Chlaenius linwensini sp. n., holotype 54 Chlaenius propeagilis sp. n., holotype 55 Chlaenius agilis Chaudoir, holotype 56 Chlaenius formosensis Lorenz, CCCC 57 Chlaenius leishanensis Kirschenhofer, IZCAS 58 Chlaenius noguchii Bates, IZCAS 59 Chlaenius wrasei Kirschenhofer, IZCAS 60 Chlaenius agiloides Jedlicka, IZCAS 61 Chlaenius rambouseki Lutshnik from Ussuri region, IZCAS 62 Chlaenius anchomenoides Bates, paratype 63 Chlaenius nuristanus Jedlicka, paratype 64 Chlaenius nuristanus a. rubridipes Jedlicka, paratype 65 Chlaenius rambouseki Lutshnik from Taiwan, CCCC. Scale line = 1.0 mm.

Figures 66 - 79. Humeral region of elytra of Chlaenius (Lithochlaenius) spp 66 Chlaenius chuanqianensis sp. n., holotype 67 Chlaenius linwensini sp. n., holotype 68 Chlaenius propeagilis sp. n., holotype 69 Chlaenius agilis Chaudoir, holotype 70 Chlaenius formosensis Lorenz, CCCC 71 Chlaenius leishanensis Kirschenhofer, IZCAS 72 Chlaenius noguchii Bates, IZCAS 73 Chlaenius wrasei Kirschenhofer, IZCAS 74 Chlaenius agiloides Jedlicka, IZCAS 75 Chlaenius rambouseki Lutshnik from Ussuri region, ZCAS 76 Chlaenius anchomenoides Bates, paratype 77 Chlaenius nuristanus Jedlicka, paratype 78 Chlaenius nuristanus Jedlicka, paratype 79 Chlaenius rambouseki Lutshnik from Taiwan, CCCC. Scale line = 1.0 mm.

Figures 80 - 93. Elytral intervals of Chlaenius (Lithochlaenius) spp. 80 Chlaenius chuanqianensis sp. n., holotype 81 Chlaenius linwensini sp. n., holotype 82 Chlaenius propeagilis sp. n., holotype 83 Chlaenius agilis Chaudoir, holotype 84 Chlaenius formosensis Lorenz, CCCC 85 Chlaenius leishanensis, IZCAS 86 Chlaenius noguchii Bates, IZCAS 87 Chlaenius wrasei Kirschenhofer, IZCAS 88 Chlaenius agiloides Jedlicka, IZCAS 89 Chlaenius rambouseki Lutshnik from Ussuri region, IZCAS 90 Chlaenius anchomenoides Bates, paratype 91 Chlaenius nuristanus Jedlicka, paratype 92 Chlaenius nuristanus Jedlicka, paratype 93 Chlaenius rambouseki Lutshnik from Taiwan, CCCC. Scale line = 1.0 mm.

Figures 94 - 116. Abdominal sternum VII (ventral aspect) of Chlaenius (Lithochlaenius) species 94 Chlaenius chuanqianensis sp. n., male, holotype 95 Chlaenius chuanqianensis sp. n., female, paratype 96 Chlaenius linwensini sp. n., male, holotype 97 Chlaenius linwensini sp. n., female, paratype 98 Chlaenius propeagilis sp. n., male, holotype 99 Chlaenius propeagilis sp. n., female, paratype 100 Chlaenius agilis Chaudoir, male, holotype 101 Chlaenius formosensis Lorenz, male 102 Chlaenius formosensis Lorenz, female 103 Chlaenius leishanensis Kirschenhofer, male 104 Chlaenius leishanensis Kirschenhofer, female 105 Chlaenius noguchii Bates, male 106 Chlaenius noguchii Bates, female 107 Chlaenius wrasei Kirschenhofer, male 108 Chlaenius wrasei Kirschenhofer, female 109 Chlaenius agiloides Jedlicka, male 110 Chlaenius agiloides Jedlicka, female 111 Chlaenius rambouseki Lutshnik, from Ussuri region, male 112 Chlaenius rambouseki Lutshnik from Ussuri region, female 113 Chlaenius anchomenoides Bates, male, paratype 114 Chlaenius nuristanus Jedlicka, male, paratype 115 Chlaenius nuristanus Jedlicka, female, paratype 116 Chlaenius formosanus Jedlicka from Taiwan, male. Scale line = 1.0 mm.

Figures 117 - 130. Aedeagi of Chlaenius (Lithochlaenius) species 117 Chlaenius chuanqianensis sp. n., holotype (dorsal view) 118 Chlaenius chuanqianensis sp. n., holotype (left lateral view) 119 Chlaenius linwensini sp. n., holotype (dorsal view) 120 Chlaenius linwensini sp. n., holotype (left lateral view) 121 Chlaenius propeagilis sp. n., holotype (dorsal view) 122 Chlaenius propeagilis sp. n., holotype (left lateral view) 123 Chlaenius agilis Chaudoir, holotype (dorsal view) 124 Chlaenius agilis Chaudoir, holotype (left lateral view) 125 Chlaenius formosensis Lorenz, holotype (dorsal view) 126 Chlaenius formosensis Lorenz, holotype (left lateral view) 127 Chlaenius leishanensis Kirschenhofer (dorsal view) 128 Chlaenius leishanensis Kirschenhofer (left lateral view) 129 Chlaenius noguchii Bates (dorsal view) 130 Chlaenius noguchii Bates (left lateral view). Scale lines: A = 1.0 mm (Figs 117, 119, 121, 123, 125, 127, 129); B = 0.5 mm (Figs 118, 120, 122, 124, 126, 128, 130).

Figures 146 - 151. Photographs of habitats for Chlaenius (Lithochlaenius) spp. 146 Chlaenius chuanqianensis sp. n., Dabaitang, Xishui county, North Guizhou, China 147 Chlaenius anchomenoides Bates, Goorais valley, Pakistan (Provided by Dr. Muhammad Abbas in Pakistan Museum of Natural History) 148 Chlaenius propeagilis sp. n., Gaoligongshan, Yunnan, China 149 Chlaenius leishanensis Kirschenhofer, Xiaodanjiang, Leigongshan, Leishan county, Southeast Guizhou, China 150 Chlaenius chuanqianensis sp. n. and Chlaenius agiloides Jedlicka, Jinshajiang, Sichuan 151 Chlaenius rambouseki Lutshnik, Ussri river, Heilongjiang, China.