ValimYeKavanaughDavid H.ShiHongliangLiangHongbinA key to species of subgenus Lithochlaenius (Coleoptera, Carabidae, Chlaeniini, Chlaenius), with descriptions of three new speciesZookeys9920112011128155210.3897/zookeys.128.1804 Chlaenius (Lithochlaenius) linwensini urn:lsid:zoobank.org:act:EE7D65D7-2C84-497B-AA28-F62D7DACD5E7 http://species-id.net/wiki/Chlaenius_(Lithochlaenius)_linwensini Liu & Liangsp. n.Figs 18–1953678196–97119–120158Types.

Holotype: male (IZCAS), "Fujian, Jianyang, Huangkeng, Guiling, 270–340m""/ ""1960.III.26, Zhang Yiran collector""/ ""Holotype, Chlaenius (Lithochlaenius) linwensini Liu & Liang sp. n.""[red label]. Paratypes: Total 6 specimens. 1 male (IZCAS), "Fujian: Jianyang, Huangkeng, Guiling, 270–340m""/ ""1960.III.26, Zhang Yiran collector""; 1 female (IZCAS), "Fujian, Chong"an, Xingcun Sangang, 740m, light trap""/ "1960.VII.15, Zhang Yiran collector""; 1 female (IZCAS), "Fujian: Chong-an, San-gang""/ "1979.VIII.5, Song Shimei collector""; 1 male (SIECAS), "Fujian, Chong"an, Xingcun""/ "1960.VI.27, Jin Lin collector""; 1 male (SIECAS), "Fujian: Chong"an, Xingcun""; 1 male (IZCAS), "Fujian: Dehua, Chenguan, 510–550m""/ ""1960.VI.2, collector Ma Chenling"". Each paratype with an additional yellow label: "Paratype, Chlaenius (Lithochlaenius) linwensini Liu & Liang sp. n."".

Diagnosis.

Antennomere 1 coniform (Fig. 53); all antennomeres concolorous; basal two-thirds of intervals 1–5 glabrous medially, with irregular setae laterally (Fig. 81); lamella of aedeagus subtruncate at apex (Fig. 119), thickened and bent ventrally (Fig. 120).

Description.

Total length = 14.50–16.50 mm (mean = 15.71), width = 5.33–5.87 mm (mean = 5.60); HW = 2.40–2.85 mm (mean = 2.71), EYL = 1.00–1.15 mm (mean = 1.05), ratio Ant3/Ant1= 1.37–1.61 (mean = 1.50), PL/PW = 0.82–0.90 (mean = 0.86), EL/EW = 1.67–1.81 (mean = 1.76), EL/ PL = 1.27–1.41 (mean = 1.35).

Head and pronotum black, with green or coppery metallic luster; elytra black; ventral surface black; antennae, palpi, femora, and tibiae brown; mandibles, trochanters, and tarsi dark brown.

Head with vertex smooth medially, coarsely punctate and sparsely pubescent behind eye; labrum slightly emarginate at apex; antennomere 1 strongly coniform (Fig. 53). Pronotum with disk smooth medially, very sparsely punctate and pubescent along the middle line; lateral furrow very sparsely punctate; basal foveae small, deep, coarsely punctate and sparsely pubescent. Elytral intervals convex, basal two-thirds of intervals 1–5 glabrous medially, with irregularly arranged setae laterally (Fig. 81), apical one-third of intervals 1–5 sparsely pubescent medially, intervals 6–9 densely pubescent; striae deep, punctate; humeral angle obtuse (Fig. 67). Abdominal sterna IV–VI sparsely pubescent medially, densely pubescent laterally; sternum VII broadly rounded apically in male, narrowly truncate apically in female (Figs 96–97). Lamella of aedeagus truncate at apex (Fig. 119), thick and bent ventrally (Fig. 120).

Etymology.

The Latinized namelinwensini refers to Mr. Lin Wensin, an excellent insect collector who died during a recent collecting trip to Hainan, China.

Geographical distribution.

Fig. 158. Known only from Fujian Province, China.

Remarks.

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

Male members of this species are similar to those of Chlaenius formosensis in the shape of the lamella of aedeagus, but males and females differ from those of the latter in having antennomere 1 coniform (cylindrical in Chlaenius formosensis), elytral intervals 6–7 pubescent throughout (glabrous medially in Chlaenius formosensis), and males have the aedeagus convex ventrally in the middle portion (straight in Chlaenius formosensis males).

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.

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.

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.

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.

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).

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

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.