Types.

Valim

Kavanaugh

David H.

Shi

Hongliang

Liang

Hongbin

A key to species of subgenus Lithochlaenius (Coleoptera, Carabidae, Chlaeniini, Chlaenius), with descriptions of three new species

Zookeys99201120111281552

10.3897/zookeys.128.1804

Chlaenius

Lithochlaenius

chuanqianensis

urn:lsid:zoobank.org:act:2DA7CCAE-4DD2-4CF0-A722-88CA003C691A

http://species-id.net/wiki/Chlaenius_(Lithochlaenius)_chuanqianensis

Liu & Liang

sp. n.

Figs 16–1752668094–95117–118146, 150158

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 16–21.

Habitus of Chlaenius (Lithochlaenius) spp16 Chlaenius chuanqianensis sp. n., holotype, male, dorsal view17 Chlaenius chuanqianensis sp. n., holotype, male, ventral view18 Chlaenius linwensini sp. n., holotype, male, dorsal view19 Chlaenius linwensini sp.n., holotype, male, ventral view20 Chlaenius propeagilis sp. n., holotype, male, dorsal view21 Chlaenius propeagilis sp. n., holotype, male, ventral view. Scale line = 5.0 mm.

Figures 52–65.

Antennomere 1 of Chlaenius (Lithochlaenius) species52 Chlaenius chuanqianensis sp. n., holotype53 Chlaenius linwensini sp. n., holotype54 Chlaenius propeagilis sp. n., holotype55 Chlaenius agilis Chaudoir, holotype56 Chlaenius formosensis Lorenz, CCCC57 Chlaenius leishanensis Kirschenhofer, IZCAS58 Chlaenius noguchii Bates, IZCAS59 Chlaenius wrasei Kirschenhofer, IZCAS60 Chlaenius agiloides Jedlička, IZCAS61 Chlaenius rambouseki Lutshnik from Ussuri region, IZCAS62 Chlaenius anchomenoides Bates, paratype63 Chlaenius nuristanus Jedlička, paratype64 Chlaenius nuristanus a. rubridipes Jedlička, paratype65 Chlaenius rambouseki Lutshnik from Taiwan,CCCC. Scale line = 1.0 mm.

Figures 66–79.

Humeral region of elytra of Chlaenius (Lithochlaenius) spp66 Chlaenius chuanqianensis sp. n., holotype67 Chlaenius linwensini sp. n., holotype68 Chlaenius propeagilis sp. n., holotype69 Chlaenius agilis Chaudoir, holotype70 Chlaenius formosensis Lorenz, CCCC71 Chlaenius leishanensis Kirschenhofer, IZCAS72 Chlaenius noguchii Bates, IZCAS73 Chlaenius wrasei Kirschenhofer, IZCAS74 Chlaenius agiloides Jedlička, IZCAS75 Chlaenius rambouseki Lutshnik from Ussuri region, ZCAS76 Chlaenius anchomenoides Bates, paratype77 Chlaenius nuristanus Jedlička, paratype78 Chlaenius nuristanus Jedlička, paratype79 Chlaenius rambousekiLutshnik from Taiwan, CCCC. Scale line = 1.0 mm.

Figures 80–93.

Elytral intervals of Chlaenius (Lithochlaenius) spp. 80 Chlaenius chuanqianensis sp. n., holotype81 Chlaenius linwensini sp. n., holotype82 Chlaenius propeagilis sp. n., holotype83 Chlaenius agilis Chaudoir, holotype84 Chlaenius formosensis Lorenz, CCCC85 Chlaenius leishanensis, IZCAS86 Chlaenius noguchii Bates, IZCAS87 Chlaenius wrasei Kirschenhofer, IZCAS88 Chlaenius agiloides Jedlička, IZCAS89 Chlaenius rambouseki Lutshnik from Ussuri region, IZCAS90 Chlaenius anchomenoides Bates, paratype91 Chlaenius nuristanusJedlička, paratype92 Chlaenius nuristanus Jedlička, paratype93 Chlaenius rambouseki Lutshnik from Taiwan,CCCC. Scale line = 1.0 mm.

Figures 94–116.

Abdominal sternum VII (ventral aspect) of Chlaenius (Lithochlaenius) species94 Chlaenius chuanqianensis sp. n., male, holotype95 Chlaenius chuanqianensis sp. n., female, paratype96 Chlaenius linwensini sp. n., male, holotype97 Chlaenius linwensini sp. n., female, paratype98 Chlaenius propeagilis sp. n., male, holotype99 Chlaenius propeagilis sp. n., female, paratype100 Chlaenius agilis Chaudoir, male, holotype101 Chlaenius formosensis Lorenz, male102 Chlaenius formosensis Lorenz, female103 Chlaenius leishanensis Kirschenhofer, male104 Chlaenius leishanensis Kirschenhofer, female105 Chlaenius noguchii Bates, male106 Chlaenius noguchii Bates, female107 Chlaenius wrasei Kirschenhofer, male108 Chlaenius wrasei Kirschenhofer, female109 Chlaenius agiloides Jedlička, male110 Chlaenius agiloides Jedlička, female111 Chlaenius rambouseki Lutshnik, from Ussuri region, male112 Chlaenius rambouseki Lutshnik from Ussuri region, female113 Chlaenius anchomenoides Bates, male, paratype114 Chlaenius nuristanus Jedlička, male, paratype115 Chlaenius nuristanus Jedlička, female, paratype116 Chlaenius formosanus Jedlička from Taiwan, male. Scale line = 1.0 mm.

Figures 117–130.

Aedeagi of Chlaenius (Lithochlaenius) species117 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 noguchiiBates (dorsal view)130 Chlaenius noguchiiBates (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, China147 Chlaenius anchomenoides Bates, Goorais valley, Pakistan (Provided by Dr. Muhammad Abbas in Pakistan Museum of Natural History)148 Chlaenius propeagilis sp. n., Gaoligongshan, Yunnan, China149 Chlaenius leishanensis Kirschenhofer,Xiaodanjiang, Leigongshan, Leishan county, Southeast Guizhou, China150Chlaenius chuanqianensis sp. n. and Chlaenius agiloides Jedlička, Jinshajiang, Sichuan151 Chlaenius rambouseki Lutshnik, Ussri river, Heilongjiang, China.

Figure 158.

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