40,222 research outputs found
Lesteva concava Cheng & Li & Peng 2019, new species
No full textLesteva (s. str.) concava, Cheng, Li & Peng, new species (Figs 2B, 3 G–H, 5D–F, 24) Type material (64 exs). Holotype: CHINA: ♂: ‘ China: Zhejiang Prov., Lin’an City (临安市), Mt. Qingliang (清 凉峰), 1050–1080 m, 8–10.v.2005, Zhu & Li leg. ’ / HOLOTYPE (red), L. concava sp. nov., det. Cheng, Li & Peng, 2019, SNUC. Paratypes: CHINA: 17 ♂♂, 34 ♀♀: same label data as holotype / PARATYPE (yellow), L. concava sp. nov., det. Cheng, Li & Peng, 2019, SNUC; 1 ♀: ‘ China: Anhui Prov., Anqing City (安庆市), Qianshan County (潜山县), Mt. Tainzhu (天柱山), 1150–1250 m, 25.iv.2005, Hu & Tang leg. ’ / PARATYPE (yellow), L. concava sp. nov., det. Cheng, Li & Peng, 2019, SNUC; 1 ♀: ‘ China: Anhui Prov., Chizhou City (池州市), Shitai County (石台县), Guniujiang N. R. (牯牛降自然保护区), alt. 300 m, 27.iv.2005, Hu & Tang leg. ’ / PARATYPE (yellow), L. concava sp. nov., det. Cheng, Li & Peng, 2019, SNUC; 1 ♀: ‘ China: Zhejiang Prov., Hangzhou City (杭州 市), Anji County (安吉 县), Mt. Longwang (龙王 山), 300–500 m, 24.iv.2004, Jing-Wen Zhu leg. ’ / PARATYPE (yellow), L. concava sp. nov., det. Cheng, Li & Peng, 2019, SNUC; 2 ♀♀: ‘ China: Zhejiang Prov., Hangzhou City (杭州市), Anji County (安吉县), Mt. Longwang (龙王山), 250–550 m, 24.iv.2006, Jin-Wen Li leg. ’ / PARATYPE (yellow), L. concava sp. nov., det. Cheng, Li & Peng, 2019, SNUC; 2 ♀♀: ‘ China: Zhejiang Prov., Hangzhou City (杭州市), Anji County (安吉县), Mt. Longwang (龙王山), 1050–1200 m, 15.v.2013, Chen & Pan leg. ’ / PARATYPE (yellow), L. concava sp. nov., det. Cheng, Li & Peng, 2019, SNUC; 1 ♀: ‘ China: Zhejiang Prov., Lin’an City (临安市), Mt. Tianmu (天目山), 800–1150 m, 2.v.2001, Jiao-Yao Hu leg. ’ / PARATYPE (yellow), L. concava sp. nov., det. Cheng, Li & Peng, 2019, SNUC; 1 ♀: ‘ China: Zhejiang Prov., Lin’an City (临安市), Mt. Tianmu, (天目山), 800–1150 m, 31.v.2006, Hu & Tang leg. ’ / PARATYPE (yellow), L. concava sp. nov., det. Cheng, Li & Peng, 2019, SNUC; 1 ♂: ‘ China: Zhejiang Prov., Lin’an City (临安市), Mt. Tianmu, (天目山), 830–900 m, 31.v.2010, Wang, Xu & Zhu leg. ’ / PARATYPE (yellow), L. concava sp. nov., det. Cheng, Li & Peng, 2019, SNUC; 1 ♂, 1 ♀: ‘ China: Zhejiang Prov., Quzhou City (衢州市), Jingning County (景宁 县), Baiyunlinqu (白云林区), 1100–1270 m, 07.v.2012, Jian-Qing Zhu leg. ’ / PARATYPE (yellow), L. concava sp. nov., det. Cheng, Li & Peng, 2019, SNUC. Description. Measurements (in mm) and ratios: BL 3.04–3.29; FL 2.36–2.48; HL 0.47–0.50; HW 0.59–0.62; PL 0.56–0.59; PW 0.65–0.68; EL 1.27–1.33; EW 1.18–1.21; HL/HW 0.75–0.79; PL/PW 0.86–0.90; EL/EW 1.07–1.11; HW/PW 0.90–0.95; PL/EL 0.44–0.46; AnL 1.39–1.42; AeL 0.46–0.50. Habitus as in Fig. 2B. Reddish brown, head usually darker, blackish brown; mouthparts fuscous brown; antennae yellowish brown; elytra with small subtriangular yellow maculae near middle; legs reddish brown, except of paler apex of tibiae and tarsi. Pubescence of body pale, evident and recumbent. Head subtriangular, coarsely and sparsely punctate, widest across eyes; eyes prominent, 1.86 times longer than temples; ocelli distinct, distance between ocelli 1.75 times as long as distance between ocellus and posterior margin of eye. Antennae elongate, relative lengths of the antennomeres I–XI: 1.54: 1: 1: 1: 1: 1: 1.15: 1.15: 1.15: 1.15: 1.77. Pronotum subcordate, moderately convex, widest near anterior third; lateral margins arcuate at anterior twothirds and nearly straight at posterior third; punctation and pubescence as that on head; disc with shallow U-shaped depression. Scutellum subtriangular, surface with fine punctation and pubescence. Elytra subtrapezoidal, gradually dilated posteriorly, posterior angles broadly rounded; punctation and pubescence distinctly finer and sparser than those on pronotum. Abdomen broad, widest at segment IV (first visible abdominal segment), then distinctly narrowed posteriorly. Tergites with dense, fine punctation and decumbent pubescence, devoid of microsculpture; middle of the tergites IV and V with one pair of tomentose patches, but patches on tergite V smaller and less transverse. Male. Apical margin of the tergite VIII (Fig. 3G) broadly concave; sternite VIII (Fig. 3H) transverse, apical margin weakly concave; median lobe of the aedeagus (Figs 5 D–F) slightly longer than parameres; parameres somewhat asymmetrical, each slightly narrowed in anterior half, with three long apical setae; internal sac without sclerotized spines and without distinct dark membranous structures. Female. Abdominal sternite VIII without concavity apically. In other morphological characters similar with males. Comparative notes. Lesteva concava is closest to L. cooteri Rougemont in sharing similar body size, and punctation and pubescence of the head and pronotum. These two species can be readily separated by the different coloration of the body, and especially the narrower aedeagus with longer median lobe and narrower and longer parameres in L. concava. For illustrations of L. cooteri see Figs 6A, 8 A–B, 9A–C and Rougemont (2000: figs 1, 13). Distribution and nature history. China: Anhui, Zhejiang (Fig. 24). Some specimens were sifted from leaf litter near a stream in mixed deciduous forests at Mt. Tianzhu, Anhui. Etymology. The new specific epithet refers to the broadly concave apical margin of the male tergite VIII.Published as part of Cheng, Zhi-Fei, Li, Li-Zhen & Peng, Zhong, 2019, New species and new records of Lesteva Latreille, 1797 (Coleoptera Staphylinidae: Omaliinae) from China, pp. 1-39 in Zootaxa 4560 (1) on pages 5-9, DOI: 10.11646/zootaxa.4560.1.1, http://zenodo.org/record/262725
Lesteva elongata Cheng & Li & Peng 2019, new species
No full text<i>Lesteva</i> (<i>s. str.</i>) <i>elongata</i> Cheng, Li & Peng, new species <p>(Figs 11A, 13 A–B, 14A–C, 34)</p> <p> <b>Type material</b> (31 exs). <b>Holotype: CHINA:</b> ♂: ‘ China: Zhejiang Prov., Lin’an City (临安市), Mt. Qingliang (清 凉峰), alt. 1080 m, 9–10.v.2005, Zhu & Li leg. ’ / HOLOTYPE (red), <i>L. elongata</i> <b>sp. nov.</b>, det. Cheng, Li & Peng, 2019, SNUC. <b>Paratypes: CHINA:</b> 9 ♂♂, 15 ♀♀: same label data as holotype / PARATYPE (yellow), <i>L. elongata</i></p> <p> <b>sp. nov.</b>, det. Cheng, Li & Peng, 2019, SNUC; 1 ♂, 4 ♀♀: ‘ China: Zhejiang Prov., Lin’an City (临安市), Mt. Tianmu (天目 山), 800–1150 m, 19.v.2006, Hu & Tang leg.’ / PARATYPE (yellow), <i>L. elongata</i> <b>sp. nov</b>., det. Cheng, Li & Peng, 2019, SNUC; 1 ♀: ‘ China: Zhejiang Prov., Lin’an City (临安市), Mt. East Tianmu (东天目山), 1050–1150 m, 13.iv.2011, Peng & Zhu leg.’ / PARATYPE (yellow), <i>L. elongata</i> <b>sp. nov</b>., det. Cheng, Li & Peng, 2019, SNUC.</p> <p> <b>Description.</b> Measurements (in mm) and ratios: BL 2.76–3.16; FL 2.14–2.42; HL 0.37–0.44; HW 0.53–0.59; PL 0.50–0.59; PW 0.62–0.68; EL 1.15–1.30; EW 1.09–1.21; HL/HW 0.63–0.82; PL/PW 0.80–0.90; EL/EW 1.06–1.17; HW/PW 0.85–0.90; PL/EL 0.41–0.47; AnL 1.32–1.34; AeL 0.43–0.47.</p> <p>Habitus as in Fig. 11A. Blackish brown; antennae and ocelli testaceous; elytra with distinct oblique testaceous maculae extending from the humeral angle to the suture at middle; femora fuscous, tibiae paler, tarsi yellowish. Body with pale pubescence, evident and recumbent.</p> <p>Head subtriangular, coarsely and sparsely punctate, widest across eyes; eyes moderately convex, 1.71 times longer than temples; ocelli distinct, distance between ocelli slightly more than twice as long as distance between ocellus and inner margin of eye. Antennae elongate, relative lengths of the antennomeres I–XI: 1.58: 1: 1.08: 1.08: 1.08: 1.17: 1.17: 1.08: 1.08: 1: 1.92.</p> <p>Pronotum subcordate, moderately convex and transverse, widest at anterior middle; lateral margins arcuate at anterior two-thirds and nearly straight at posterior third; punctation and pubescence similar to that on head; disc with shallow U-shaped depression. Scutellum subtriangular, surface with fine punctation and pubescence.</p> <p>Elytra subtrapezoidal, gradually dilated posteriorly, posterior angles broadly rounded; punctation and pubescence distinctly finer and sparser than those on pronotum.</p> <p>Abdomen broad, widest at segment IV (first visible abdominal segment) then narrowed posteriorly; surface of tergites closely covered with very fine punctation, without microsculpture; tomentose patches on first exposed tergite V small and less transverse.</p> <p>Male. Apical margin of the tergite VIII (Fig. 13A) truncate; sternite VIII (Fig. 13B) transverse, apical margin strongly concave; median lobe of the aedeagus (Figs 14 A–C) distinctly shorter than parameres, narrowing toward the apex; parameres somewhat asymmetrical, each slightly narrowed in anterior half, with four long apical setae; internal sac without sclerotized spines and without distinct dark membranous structures.</p> <p>Female. Abdominal sternite VIII without concavity apically. In other morphological characters similar with males.</p> <p> <b>Comparative notes.</b> Based on the body size and coloration, as well as on the punctation and pubescence, the new species is most similar to <i>L. erythra</i> Ma, Li & Zhao from which it differs by the coloration of the legs, by the shape of maculae on elytra and morphology of the aedeagus. For illustrations of <i>L. erythra</i> see 11B, 13C–D, 14D–F and Ma, Li & Zhao (2012a: figs 2, 6–8).</p> <p> <b>Distribution and natural history.</b> China: Zhejiang (Fig. 34). Some specimens were sifted from moss on rocks near a stream in mixed deciduous forests at Mt. East Tianmu, Zhejiang.</p> <p> <b>Etymology.</b> The specific epithet alludes to the elongated parameres of the aedeagus.</p>Published as part of <i>Cheng, Zhi-Fei, Li, Li-Zhen & Peng, Zhong, 2019, New species and new records of Lesteva Latreille, 1797 (Coleoptera Staphylinidae: Omaliinae) from China, pp. 1-39 in Zootaxa 4560 (1)</i> on pages 12-17, DOI: 10.11646/zootaxa.4560.1.1, <a href="http://zenodo.org/record/2627254">http://zenodo.org/record/2627254</a>
Paederus jianyueae Peng and Li 2014
No full textPaederus jianyueae Peng and Li, 2014 Material studied. China: Fujian: 1 ♂, Nanping, Mangdang Shan, 500 m, 26°38'22''N 108°06'55''E, 05.V.2011, Jian-Yue Qiu leg. (SNUC). Comment: The previously known distribution of P. jianyueae included Anhui and Zhejiang provinces (Peng et al. 2014). For illustrations of P. jianyueae see Peng et al. (2014: figures 7–8). The above records from Fujian represent new provincial records.Published as part of Cheng, Zhi-Fei & Peng, Zhong, 2019, A new species and additional records of brachypterous Paederus (Coleoptera, Staphylinidae) of mainland China and Taiwan, pp. 127-132 in Zootaxa 4686 (1) on page 128, DOI: 10.11646/zootaxa.4686.1.7, http://zenodo.org/record/348439
Lathrobium nannani Peng
No full textLathrobium nannani Peng & L.-Z. Li, 2014 Material studied. China: Zhejiang: 6 ♂♂, 14 ♀♀, Kaihua County, Gutian Shan, 28°19'40''N 118°04'37''E, 461 m, 13.VIII.2018, Miao & Cheng leg. (SNUC); 14 ♂♂, 27 ♀♀, Kaihua County, Gutian Shan, 28°19'40''N 118°40'37''E, 461 m, 14.VIII.2018, Miao & Cheng leg. (SNUC); 16 ♂♂, 20 ♀♀, Kaihua County, Gutian Shan, 29°14'42''N 118°07'12''E, 420 m, 15.VIII.2018, Miao & Cheng leg. (SNUC);. Comment: This species was recently described from the Gutian Shan in Zhejiang,where it is probably endemic. For illustrations of L. gutianense see Peng et al. (2014: figures 9C, 12).Published as part of Zhao, Qing-Hao & Peng, Zhong, 2021, New species and new records of the genus Lathrobium Gravenhorst (Coleoptera Staphylinidae: Paederinae) from Zhejiang, East China, pp. 172-181 in Zootaxa 4990 (1) on page 179, DOI: 10.11646/zootaxa.4990.1.11, http://zenodo.org/record/498258
Hygrodromicus danlangi Cheng, Li & Peng 2021, sp. n.
No full text<i>Hygrodromicus danlangi</i> Cheng, Li & Peng, sp. n. <p>(Figs 3–4, 7–8)</p> <p> <b>Type material</b> (12 ♂♂, 17 ♀♀). <b>Holotype:</b> ♂ ‘ China: Xizang, Linzhi City, Gongbujiangda County [工布江ffi县], near Gaduogang Village [ḋľÑ村], 29°53′60″N, 93°14′22″E, alt. 3620 m, 18.vii.2018, Cheng, Peng & Shen leg. / HOLOTYPE <red rectangular label, printed> ♂, <i>H. danlangi</i> <b>sp. n.</b>, det. Cheng, Li & Peng, 2021, SNUC’ (SNUC). <b>Paratypes:</b> 2 ♂♂, 2 ♀♀: same data as the holotype (SNUC); 8 ♂♂, 15 ♀♀ ‘ China: Xizang, Linzhi City, Bayi Dis- trict [巴fi区], near Chongzhe Village [AEẼ村], 29°34′31″N, 94°23′01″E, alt. 3230 m, 03.VII.2018, Cheng, Peng & Shen leg.’ (SNUC); 1 ♂, ‘ China: Yunnan Prov., Lushui Co., Pianma, Changyanhe, riverside, 25.994°N, 98.66336°E, 2454 m, 2005. V.15 day, Liang H.B. collector California Academy & IOZ., Chinese. Acad. Sci. ’ (SNUC); All paratypes with label: ‘ PARATYPE <yellow rectangular, printed> ♂ [or ♀], <i>H. danlangi</i> <b>sp. n.</b>, det. Cheng, Li & Peng, 2021, SNUC’.</p> <p> <b>Description.</b> Measurements (in mm) and ratios: BL 4.50–6.17; FL 2.78–3.61; HL 0.61–0.83; HW 0.78‒1.00; PL 0.78‒0.95; PWb 0.83–1.06; PWm 0.97‒1.28; EL 1.28‒1.95; EW 1.61‒2.06; AnL 2.89–3.35; AeL 0.93‒0.99; HL/HW 0.61‒1.00; PL/PWm 0.74‒0.84; EL/EW 0.77‒0.95.</p> <p> In external appearance, shape and coloration of body (Fig. 3A) similar to <i>H</i>. <i>carbonarius</i> <b>sp. n</b>.</p> <p>Head as in Fig. 3B; vertex distinctly transverse, with distinct deep U-shaped impression between eyes; frons between supra-anternnal tubercles slightly impressed; clypeus short and narrow, weakly convex; eyes moderately prominent, about twice as long as temples (holotype); ocelli very small and indistinct, distance between ocelli almost equal to distance between ocellus and posterior margin of eye (holotype). Vertex and frons covered with coarse and dense punctures, and reticular microsculpture. Pubescence on head long, dense and decumbent in anterior portion. Labrum (Fig. 3D) subrectangular in dorsal view, with broad emargination anteriorly. Mandibles (Figs 3E–F) subtriangular, each with broadly emarginated apex, and curved distal tooth; right and left mandibles both lacking small subtriangular teeth on inner margins near middle; prostheca with short and dense pubescence from base to above middle of mandible. Maxilla as in Fig. 3G. Labium as in Fig. 3H. Antennae as in Fig. 3C; length × width (in mm) of antennomeres 1–11 (holotype): 0.26 × 0.13: 0.17 × 0.10: 0.19 × 0.10: 0.22 × 0.09: 0.25 × 0.09: 0.26 × 0.10: 026 × 0.10: 0.26 × 0.10: 0.23 × 0.10: 0.25 × 0.10: 0.34 × 0.11.</p> <p>Male. Apical margin of abdominal tergite VIII (Fig. 3I) straight; apical margin of abdominal strernite VIII (Fig. 3J) broadly emarginated. Aedeagus as in Figs 4A–C, median lobe deeply emarginated in lateral margins near anterior third; parameres slighly asymmetrical, slender, distinctly exceeding apex of median lobe, each bearing four apical setae; internal sac complicated, with elongate membranous structures and long flagellum.</p> <p>Female. Apical margin of abdominal sternite VIII without emargination.</p> <p> <b>Comparative notes.</b> Regarding the external morphology, <i>H</i>. <i>danlangi</i> <b>sp. n.</b> is similar to <i>H. carbonarius</i> <b>sp. n.</b>, but differs by shapes of the pronotum and the labrum, the absence of additional small tooth in inner margin of mandibles, and the shape of apical portion of the aedeagus.</p> <p> <b>Distribution.</b> Southwestern China: Xizang, Yunnan (Fig. 7).</p> <p> <b>Bionomics.</b> Specimens were collected in the same ecological condition together with <i>H</i>. <i>carbonarius</i> s <b>p. n.</b> (see above) in Gongbujiangda County of Xizang. Several specimens were collected in the neighboring Bayi District of Xizang (Fig. 8).</p> <p> <b>Etymology.</b> The species is named after Danlang, who lent extensive support to our research.</p> <p> FIGURE 3. <i>Hygrodromicus danlangi</i> sp. n., male. Habitus of male in dorsal view (A); head in dorsal view (B); left antenna (C); labrum in dorsal view (D); left maxilla in ventral view (G); right (E) and left (F) mandibles in dorsal view; labium in ventral view (H); abdominal sternite VIII (I) and tergite VIII (J). Scale bar: 2.0 mm in A; 1.0 mm in C; 0.30 mm in B; 0.10 mm in D–J.</p>Published as part of <i>Cheng, Zhi-Fei, Pan, Zhao-Hui, Li, Li-Zhen & Peng, Zhong, 2021, Three new species of Hygrodromicus Tronquet, 1981 (Coleoptera: Staphylinidae Omaliinae: Anthophagini) from China, pp. 138-148 in Zootaxa 4963 (1)</i> on pages 142-143, DOI: 10.11646/zootaxa.4963.1.6, <a href="http://zenodo.org/record/4719970">http://zenodo.org/record/4719970</a>
Lathrobium haoae Peng
No full textLathrobium haoae Peng & Q.-L. Li, 2015 Material studied. China: Zhejiang: 1 ♂, Longquan, Fengyangshan N. R., Oujiangyuan, 27°52'08''N 119°10'40''E, 1610 m, 03. V.2016, Jiang, Liu & Zhou leg. (SNUC); 4 ♂♂, 2 ♀♀, Longquan, Fengyangshan N. R., Huangmaojian, 27°53'24''N 119°10'33''E, 1580 m, 16.X.2017, Cheng, Shen, Wang, Qiao & Chang leg. (SNUC); 3 ♂♂, 1 ♀, Longquan, Fengyangshan N. R., Oujiangyuan, 27°52'08''N 119°10'40''E, 1611 m, 17.X.2017, Cheng, Shen, Wang, Qiao & Chang leg. (SNUC); 9 ♂♂, 4 ♀♀, Longquan, Fengyangshan N. R., Erzhepu, 27°52'49''N 119°10'11''E, 1494 m, 18.X.2017, Cheng, Shen, Wang, Qiao & Chang leg. (SNUC); 2 ♂♂, Longquan, Fengyangshan N. R., Datianping, 27°54'29''N 119°10'31''E, 1350 m, 19.X.2017, Cheng, Shen, Wang, Qiao & Chang leg. (SNUC); 1 ♂, 3 ♀♀, Longquan, Fengyangshan N. R., Oujiangyuan, 27°53'58''N 119°09'31''E, 1850 m, 09. V.2019, Tang & Zhao leg. (SNUC). Comment: The original description is based on thirty type specimens collected in Fengyang Shan, Zhejiang (Peng et al. 2015). For illustrations of L. haoae see Peng et al. (2015: figures 2C, 5).Published as part of Zhao, Qing-Hao & Peng, Zhong, 2021, New species and new records of the genus Lathrobium Gravenhorst (Coleoptera Staphylinidae: Paederinae) from Zhejiang, East China, pp. 172-181 in Zootaxa 4990 (1) on page 176, DOI: 10.11646/zootaxa.4990.1.11, http://zenodo.org/record/498258
Lesteva obesa Cheng & Li & Peng 2019, new species
No full textLesteva (s. str.) obesa Cheng, Li & Peng, new species (Figs 16A, 18 A–B, 19A–C, 34) Type material (1 ex.). Holotype: ♂: ‘ China: Chongqing City (重庆市), Chengkou County (城口县), Mt East Dabashan (东大巴山), upper Huang’an Gou (黄安沟), N31.51.785, E109.09.459, alt. 2039 m, 22–23.iv.2008, Hao Huang & Wang Xu leg. ’ / HOLOTYPE (red), L. obesa sp. nov., det. Cheng, Li & Peng, 2019, SNUC. Description. Measurements (in mm) and ratios: BL 2.50; FL 1.72; HL 0.41; HW 0.53; PL 0.53; PW 0.60; EL 1.13; EW 1.29; HL/HW 0.77; PL/PW 0.88; EL/EW 0.88; PL/EL 0.82; AnL 1.38; AeL 0.50. Habitus as in Fig. 16A. Reddish brown, head usually darker, blackish brown; mouthparts and antennae fuscous brown; elytra reddish brown, but lateral and posterior margin paler; elytra with obscure oblique dark red maculae, extending from shoulders toward suture in middle of the elytra; femora fuscous brown, tibiae paler, tarsi yellowish brown. Pubescence of body pale, evident and recumbent. Head subtriangular, with very coarse and dense punctation, widest across eyes; eyes moderately large and prominent, twice as long as temples; ocelli distinct, distance between ocelli 1.22 times as long as distance between ocellus and inner margin of the compound eye. Antennae elongate, relative lengths of the antennomeres I–XI: 1.54: 1: 1: 1.08: 1.08: 1.08: 1: 1: 1: 1: 1.77. Pronotum subcordate, distinctly convex, moderately transverse widest near anterior third; lateral margins arcuate at anterior two-thirds and nearly straight at posterior third; punctation and pubescence coarser and sparser than those on head; disc with shallow U-shaped impression. Scutellum subtriangular, with fine and sparse punctation and pubescence. Elytra subtrapezoidal, gradually dilated posteriorly, posterior angles broadly rounded; punctation and pubescence distinctly finer and sparser than those on pronotum. Abdomen broad, widest at segment IV (first visible abdominal segment) then narrowed posteriorly; surface of tergites somewhat closely covered with very fine punctation and pubescence, without microsculpture; tergite V with a pair of large and moderately transverse tomentose patches. Male. Apical margin of the tergite VIII (Fig. 18A) weakly concave; sternite VIII (Fig. 18B) transverse, apical margin strongly concave. Median lobe of the aedeagus (Figs 19 A–C) significantly wide basally, narrowing toward apex, slightly longer than parameres; parameres somewhat asymmetrical, with four short apical setae. Female. Unknown. Comparative notes. Based on the coloration of the body, punctation and pubescence of the head and pronotum and shape of the median lobe of the aedeagus, the new species is most similar to L. qinlingmontis Rougemont (Shaanxi: Qinling Shan), from which it can be distinguished by a shallow U-shaped impression on the disc of the pronotum, shapes of the elytra and slender parameres. For illustrations of L. qinlingmontis see Rougemont. (2017: 3, 3a). Distribution and natural history. The type locality is situated in Mt. East Dabashan to the Chengkou County, northern Chongqing, near Shaanxi Province (Fig. 34). The specimen was sifted from leaf litter near a stream in mixed deciduous forests at an altitude of 2039 m. Etymology. The specific epithet ‘ obesa ’ mean ‘obese’, referring to the morphology of the body in the male of the new species.Published as part of Cheng, Zhi-Fei, Li, Li-Zhen & Peng, Zhong, 2019, New species and new records of Lesteva Latreille, 1797 (Coleoptera Staphylinidae: Omaliinae) from China, pp. 1-39 in Zootaxa 4560 (1) on pages 19-20, DOI: 10.11646/zootaxa.4560.1.1, http://zenodo.org/record/262725
Geodromicus namucuoicus Cheng & Shavrin & Peng 2020, sp. n.
No full textGeodromicus namucuoicus Cheng & Peng sp. n. (Figs. 57, 59 –63, 113) Type material examined: Holotype ♂: ‘ China: Xizang A. R., Lasa City, | Dangxiong County, | near Namucuo Lake, | 4,718 m a.s.l., 7.VIII.2004, | Li-Zhen Li leg.’ , ‘ HOLOTYPE | Geodromicus | namucuoicus sp. n. | Cheng & Peng des. 2019’ (SNUC). Paratypes (3 ♂♂, 2 ♀♀): 3 ♂♂ [two specimens dissected], 2 ♀♀: same data as the holotype, ‘ PARATYPE | Geodromicus | namucuoicus sp. n. | Cheng & Peng des. 2019’ (SNUC). Description. Measurements (min-max; n=6): HW: 0.95–1.00; HL: 0.78–0.83; OL: 0.23–0.27; LT: 0.12–0.15; AL: 2.78–3.13; PL: 0.89–0.95; PWmax: 1.28–1.33; PWmin: 1.17–1.22; ESL: 1.56–1.83; EW: 1.72–2.00; MTbL (holotype): 1.31; MTrL (holotype): 0.56 (MTrL 1–4: 0.31; MTrL 5: 0.25); AW: 1.85–2.10; AedL: 0.95–1.37; BL: 5.34–5.50. Body reddish-brown to brown, with paler, yellow-brown to reddish-brown posterolateral portions of pronotum, elytra and apical abdominal tergites; legs reddish; mouthparts, antennae, and tarsi yellow. Body glossy, without microsculpture on elytra and scutellum; head with fine microsculpture; neck with distinct large isodiametric sculpture; pronotum with distinct isodiametric microreticulation; abdominal tergites with dense and distinct isodiametric microsculpture. Habitus as in Fig. 57. Head 1.2 times as wide as long, slightly convex between anteromedian depression and in portions between ocelli and eyes; frontal portion with relatively deep and wide anteromedian depression, distinctly narrowed basad to level of anterior margins of eyes; interocellar depression wide and moderately deep, slightly narrowing basad, separated from infraorbital ridges by fine and long convergent grooves in front of ocelli; temples relatively long, convex, slightly less than half as long as eyes. Eyes moderately large, strongly convex. Ocelli small, distance between ocelli about 1.2 times as long as distance between ocellus and posterior margin of eye. Punctation irregular and fine, indistinct in apical portion, more distinct and denser on infraorbital ridges. Neck with or without indistinct and irregular very fine punctures. Preapical segment of maxillary palp about as long as preceding segment, markedly widened apicad; apical palpomere about 0.8 times as long as preapical segment, widest in basal portion, gradually narrowing apically. Antennae moderately long, exceeding apical third of elytra when reclined; lengths × widths of antennomeres (holotype): 1: 0.27 × 0.12; 2: 0.17 × 0.10; 3: 0.22 × 0.10; 4: 0.21 × 0.10; 5: 0.23 × 0.10; 6–7: 0.26 × 0.11; 8–9: 0.27 × 0.11; 10: 0.25 × 0.11; 11: 0.37 × 0.11. Pronotum slightly convex, transverse, 1.4 times as wide as long, 1.3 times as wide as head, widest in anterior third, more narrowed posteriad than anteriad, with anterior angles rounded and indistinctly protruded; narrow basal part of pronotum with straight lateral margins and with obtuse posterior angles; anterior and posterior margins straight; median portion without impressions. Punctation dense, markedly larger, deeper, and coarser than that in head, finer and sparser in middle. Scutellum very large, with several irregular, fine punctures. Elytra slightly convex, 1.1 times as wide as long, 1.7–1.9 times as long as pronotum, slightly widened posteriad towards broadly rounded posterior portions; lateral margins rather broadly flattened. Punctation dense, slightly deeper than that of pronotum, with interspaces between punctures about as broad as combined diameters of two nearest punctures, punctures markedly finer in basal and prescutellar portions. Metatarsi distinctly more than half as long as metatibia; apical metatarsomere slightly shorter than preceding four metatarsomeres. Abdomen slightly wider than elytra, convex, with two distinct transverse tomentose spots in the middle of abdominal tergite IV and with two indistinct, small, round tomentose spots in the middle of tergite V. Punctation regular, fine and dense. Male. Protarsomeres 1–4 wide. Apical margin of abdominal tergite VIII (Fig. 59) somewhat straight. Apical margin of abdominal sternite VIII (Fig. 60) slightly sinuate. Aedeagus (Figs. 61, 63) with moderately large basal portion, a relatively wide and long median lobe; median lobe gradually narrowed towards the slightly elongate apex; parameres narrow, curved in apical portion, distinctly extending beyond apex of median lobe, with three apical and one latero-apical moderately short setae; internal sac weakly sclerotized, with moderately narrow and very long flagellum coiled in basal part of aedeagus. Lateral aspect of aedeagus as in Fig. 62. Female. Protarsomeres 1–4 moderately narrow. Apical margins of abdominal tergite VIII and sternite VIII straight or slightly rounded. Comparative notes. Based on the general shapes of the body and the pronotum, as well as on the external and internal structure of the aedeagus, G. namucuoicus sp. n. belongs to the crassipalpis group (Shavrin 2019). It differs from all the species of this group by the paler coloration, the shape of anterior angles of the pronotum (indistinctly protruded anteriad), shorter elytra, the absence of a median impressions on the pronotum, and a very narrow apex of the median lobe. Distribution. The species is known only from the type locality near Namucuo Lake in Xizang Autonomous Region, China (Fig. 113). Bionomics. The specimens were collected at an elevation of 4718 m a.s.l. by sifting mixed leaf litter near Namucuo Lake. Etymology. The specific epithet is the Latinized adjective derived from Namucuo Lake.Published as part of Cheng, Zhi-Fei, Shavrin, Alexey V. & Peng, Zhong, 2020, New species and records of Geodromicus Redtenbacher, 1857 from China (Coleoptera: Staphylinidae: Omaliinae: Anthophagini), pp. 132-170 in Zootaxa 4789 (1) on pages 148-149, DOI: 10.11646/zootaxa.4789.1.4, http://zenodo.org/record/388478
Hygrodromicus carbonarius Cheng, Li & Peng 2021, sp. n.
No full textHygrodromicus carbonarius Cheng, Li & Peng, sp. n. (Figs 1–2, 7, 8B) Type material (3 ♂♂, 6 ♀♀). Holotype: ♂, ‘ China: Xizang, Linzhi City, Gongbujiangda County [工布江ffi县], near Gaduogang Village [ḋľÑ村], 29°53′60″N, 93°14′22″E, alt. 3620 m, 18.vii.2018, Cheng, Peng & Shen leg. / HOLOTYPE ♂, H. carbonarius sp. n., det. Cheng, Li & Peng, 2021, SNUC’ (SNUC). Paratypes: 1 ♂, 6 ♀♀, same data as the holotype (SNUC); 1 ♂, ‘ China: Yunnan Prov., Fugong, Lishadi Town, 8.5 km up Shibali, riverside, 27.18408°N, 98.71882°E, 3095 m, 2005.VIII.8 day, Liang H.B., Zhang J.F. California Academy & IOZ., Chinese. Acad. Sci. ’ (SNUC); All paratypes with label: ‘ PARATYPE ♂ [or ♀], H. carbonarius sp. n., det. Cheng, Li & Peng, 2021, SNUC’. Description. Measurements (in mm) and ratios: BL 4.45–5.95; FL 2.84‒3.56; HL 0.61–0.89; HW 0.83–0.95; PL 0.78–1.17; PWb 0.83–1.00; PWm 0.83‒1.17; EL 1.28–1.72; EW 1.45‒2.06; AnL 2.71‒3.41; AeL 0.93‒0.99; HL/HW 0.69–0.94; PL/PWm 0.76‒0.84; EL/EW 0.79–0.90. Body (Fig. 1A) broad, black, antennae paler, basal portions of femora, apical portions of tibiae and tarsi reddishbrown. Head (Fig. 1B) subtriangular and transverse, broadest at level of eyes; vertex strongly transverse, with deep Ushaped impression between eyes; frons between supra-anternnal tubercles slightly impressed; clypeus short and narrow, weakly convex; eyes moderately prominent, about 1.50 times as long as temples (holotype); ocelli indistinct, distance between ocelli 1.1 times as long as distance between ocellus and posterior margin of eye (holotype). Vertex and frons covered with coarse and dense punctures, and reticular microsculpture. Pubescence on head long, dense and decumbent in anterior portion. Labrum (Fig. 1D) subrectangular, with slightly concaved anterior margin. Mandibles (Figs 1E–F) subtriangular, each with broad base, and curved distal tooth; right mandible armed with a small distinct subtriangular tooth on inner margin near middle; prostheca with short and dense pubescence from base to above middle of mandible. Maxilla (Fig. 1G) with smooth subtriangular stipes, subrectangular palpifer with long pubescence on external margin, elongate galea with short pubescence, and slender lacinia with dense pubescence and long teeth. Maxillary palpi composed of minute and elongate palpomere 1, slightly curved palpomere 2, broadened palpomere 3, and short subcylindrical palpomere 4. Labium (Fig. 1H) elongate, with flattened prementum divided by longitudinal groove anteriorly. Labial palpi long, palpomere 1 moderately large and elongate; palpomere 2 robust, broadened apically; palpomere 3 slender, distinctly narrower than palpomere 2. Antennae (Fig 1C) with long antennomeres; length × width (in mm) of antennomeres 1–11 (holotype): 0.26 × 0.13: 0.15 × 0.11: 0.19 × 0.11: 0.21 × 0.11: 0.22 × 0.11: 0.22 × 0.11: 0.25 × 0.11: 0.25 × 0.11: 0.25 × 0.11: 0.22 × 0.11: 0.34 × 0.11. Pronotum subtrapezoidal, broadest near anterior fourth; anterior margin widely rounded, lateral margins in anterior 2/3 rounded and nearly straight at posterior third, basal margin straight; hind angles obtuse; disc distinctly convex, with indistinct impression, stretching from middle to base. Punctures of disc finer and denser than those of head; pubescence moderately long, dense and decumbent in posterior portion; microsculpture distinct and evenly distributed. Scutellum triangular, covered with several punctures and pubescence, and distinct microsculpture. Elytra subtrapezoidal, short, distinctly wider than long, gradually dilated posteriorly, posterior angles broadly rounded; punctures and pubescence similar to those of pronotum; microsculpture absent. Hind wings brachypterous, but not completely reduced. Abdomen distinctly transverse, widest at segment IV, evenly narrowing posteriorly. Tergites with fine punctures and microsculpture, and short decumbent pubescence, denser on apical tergites; tergites IV–V with a pair of tomentose spots in middle, spots on tergite V smaller and less transverse. Male. Apical margin of abdominal tergite VIII (Fig. 1I) somewhat truncated, indistinctly emarginated; apical margin of abdominal sternite VIII (Fig. 1J) broadly emarginated. Aedeagus (Figs 2A–C) elongate, median lobe slightly emarginated in lateral margins near anterior third; parameres slightly asymmetrical, slender, significantly exceeding apex of median lobe, each bearing four apical setae; internal sac with submedian elongate membranous structures and long flagellum between them. Female. Apical margin of abdominal sternite VIII without concavity apically. Comparative notes. Based on the general shape of the forebody, coloration, shapes of maxillary and labial palpi, the presence of U-shaped impression between eyes, and shapes of apical margins of male tergite and sternite VIII, H. carbonarius sp. n. is most similar to H. danlangi sp. n., but differs by the wider pronotum, the presence of additional small tooth in inner margins of mandible, less concaved apical margin of labrum, and details of the internal and external morphology of the aedeagus. Distribution. Southwestern China: Xizang, Yunnan (Fig. 7). Bionomics. The species inhabits wet mosses or mixed leaf litter on banks of small streams with very cold water (Fig. 8B). Specimens were collected at high elevations more than 3000 m a.s.l. in Xizang in July and in Yunnan in August. Etymology. The specific epithet ‘ carbonarius ’ means ‘carbon’, referring to the coloration of a new species, black as carbon.Published as part of Cheng, Zhi-Fei, Pan, Zhao-Hui, Li, Li-Zhen & Peng, Zhong, 2021, Three new species of Hygrodromicus Tronquet, 1981 (Coleoptera: Staphylinidae Omaliinae: Anthophagini) from China, pp. 138-148 in Zootaxa 4963 (1) on pages 139-142, DOI: 10.11646/zootaxa.4963.1.6, http://zenodo.org/record/471997
Lathrobium fengae Peng
No full textLathrobium fengae Peng & L.-Z. Li, 2014 Material studied. China: Zhejiang: 18 ♂♂, 11 ♀♀, Lin’an, Shunxi Town, Qingliangfeng, 30°02'42''N 118°56'44''E, 383–594 m, 02. V.2018, Cheng & Shen leg. (SNUC). Comment: The original description is based on type specimens collected in Qingliangfeng, Lin’an, Zhejiang (Peng et al. 2014). For illustrations of L. fengae see Peng et al. (2014: figures 9A, 10).Published as part of Zhao, Qing-Hao & Peng, Zhong, 2021, New species and new records of the genus Lathrobium Gravenhorst (Coleoptera Staphylinidae: Paederinae) from Zhejiang, East China, pp. 172-181 in Zootaxa 4990 (1) on page 173, DOI: 10.11646/zootaxa.4990.1.11, http://zenodo.org/record/498258
- …
