22,473 research outputs found
Sathytes tianquanus Yin & Shen 2020, sp. nov.
No full textSathytes tianquanus sp. nov. urn:lsid:zoobank.org:act: 3303B110-9BE0-49BE-B87D-6E22C868629F Fig. 12 Differential diagnosis The male of S. tianquanus sp. nov. is morphologically close to that of S. obliquus Shen & Yin, 2020 (Zhejiang) and S. longitrabis (Shaanxi) in the apophysis of antennomere 9 located at anterior half of the segment. It differs from S. obliquus by the much more transverse antennomere 9; and from S. longitrabis by the larger body size (2.92 mm vs 2.21–2.42 mm), more elongate antennomere 11 and more transverse antennomere 9. Etymology The new species is named after Tianquan County, where the type locality of this species is situated. Type material (5 specimens) Holotype CHINA • ♂; Sichuan, Tianquan (XAEn), Er’lang Shan (ĹḇƜ); 29°52′23″ N, 102°48′34″ E; alt. 2200–2300 m; 13 Jul. 2012; Z. Peng and Z.-W. Yin leg.; old pass; leaf litter, sifted; SNUC. Paratypes CHINA • 4 ♀♀; same collection data as for holotype; SNUC. Description Male MEASUREMENTS. AeL = 0.32 mm; AnL = 1.34 mm; AL = 0.79 mm; AW = 0.92 mm; TBL = 2.92 mm; EL = 0.89 mm; EW = 1.07 mm; HL = 0.61 mm; HW = 0.58 mm; LE = 0.19 mm; LT = 0.18 mm; PL = 0.63 mm; PW = 0.63 mm. Body (Fig. 12A) reddish-brown, mouthparts and tarsi paler. Head slightly longer than wide. Each eye composed of about 22 facets; LE:LT = 1.1. Antennal clubs (Fig. 12B) formed by antennomeres 9–11; antennomere 9 (Fig. 12C) broadest at apical ¼, each with semi-membranous apophysis at apex of mesal expansion; antennomere 10 strongly transverse, obconical; antennomere 11 (Fig. 12B) about 1.6 times as long as wide, each with large basal protuberance bearing tuft of long apical setae at apex (Fig. 12D). Pronotum about as long as wide. Elytra moderately transverse. Abdomen widest at tergite 1 (IV) and narrowing apically. Aedeagus (Fig. 12E) slightly asymmetrical at apex. Female MEASUREMENTS.AnL= 1.20–1.21 mm; AL = 0.90–0.91 mm; AW = 0.89–0.90 mm; TBL = 2.81–2.85 mm; EL = 0.74–0.75 mm; EW = 0.96–0.97 mm; HL = 0.57–0.58 mm; HW = 0.53–0.54 mm; LE = 0.15 mm; LT = 0.16 mm; PL = 0.60–0.61 mm; PW = 0.60–0.61 mm. Slightly smaller than male in size. Each eye composed of about 16 facets; LE: LT = 0.9. Antennal clubs lacking modifications. Distribution China: Sichuan.Published as part of Yin, Zi-Wei & Shen, Qi, 2020, Fifteen new species of Sathytes Westwood from China (Coleoptera, Staphylinidae, Pselaphinae), with an updated checklist of world species, pp. 37-74 in European Journal of Taxonomy 722 on pages 57-58, DOI: 10.5852/ejt.2020.722.1133, http://zenodo.org/record/413433
Sathytes chengzhifeii Yin & Shen 2020, sp. nov.
No full textSathytes chengzhifeii sp. nov. urn:lsid:zoobank.org:act: 3DA68CF9-8416-4B33-A31B-C583A45AEC52 Fig. 4 Differential diagnosis The male of S. chengzhifeii sp. nov. is most similar to that of S. huapingensis sp. nov. from Guangxi, China and S. larifuga Shen & Yin, 2019 from Sabah, Borneo, with which it shares the unique, subtriangular basal protuberance of antennomere 11. The new species can be separated from the former by the larger body size (2.69–2.81 mm vs 2.49 mm) and the more basal and more distal positions of the protuberance and apophysis of antennomeres 11 and 9, respectively; and from the latter by the relatively much smaller eyes in relation to the head, more elongate antennomeres 9 and 11, and more distal position of the apophysis of antennomere 9. Etymology The new species is named after Zhi-Fei Cheng, one of the collectors of the new species. Type material (5 specimens) Holotype CHINA • ♂; Yunnan, Dehongmang (ṞẌĖm), Yingjiang County (Ŋữn), Tongbiguan Town (Ŕae ẅđ); 24°36′38.78″ N, 97°39′49.35″ E; alt. 1382 m; 18 Jul. 2019; Chen and Shen. leg.; mixed leaf litter, sifted; SNUC. Paratypes CHINA • 1 ♂, 2 ♀♀; same collection data as for holotype; SNUC • 1 ♂; same collection data as for holotype; near Mangna Road (Ėďŵǿ); 24°36′59.75″ N, 97°44′30.89″ E; alt. 1550 m, 29 Jul. 2019; SNUC. Description Male MEASUREMENTS. AeL = 0.25 mm; AnL = 1.25–1.29 mm; AL = 0.73–0.78 mm; AW = 0.86–0.89 mm; TBL = 2.69–2.81 mm; EL = 0.81–0.84 mm; EW = 0.98–1.02 mm; HL = 0.57–0.59 mm; HW = 0.55– 0.57 mm; LE = 0.21 mm; LT = 0.11 mm; PL = 0.58–0.60 mm; PW = 0.57–0.58 mm. Body (Fig. 4A) reddish-brown, mouthparts and tarsi paler. Head approximately as long as wide. Each eye composed of about 20 facets; LE: LT = 1.9. Antennal clubs (Fig. 4B) formed by antennomeres 9–11; antennomere 9 (Fig. 4C) slightly elongate, each with long semi-membranous apophysis at basal ¼ of mesal margin; antennomere 10 strongly transverse, obconical; antennomere 11 (Fig. 4B) about 1.8 times as long as wide, each with single subtriangular and blunt basal protuberance covered with short tuft of setae at apex (Fig. 4D). Pronotum about as long as wide. Elytra strongly transverse. Abdomen widest at tergite 1 (IV) and narrowing apically. Aedeagus (Fig. 4E) flattened, slightly elongate, and slightly asymmetrical at apex. Female MEASUREMENTS. AnL = 1.27 mm; AL = 0.86 mm; AW = 0.95 mm; TBL = 3.0 mm; EL = 0.83 mm; EW = 1.05 mm; HL = 0.62 mm; HW = 0.60 mm; LE = 0.17 mm; LT = 0.16 mm; PL = 0.69 mm; PW = 0.65 mm. Similar to male in size. Each eye composed of about 14 facets; LE:LT = 1.6. Antennal clubs lacking modifications. Distribution China: Yunnan.Published as part of Yin, Zi-Wei & Shen, Qi, 2020, Fifteen new species of Sathytes Westwood from China (Coleoptera, Staphylinidae, Pselaphinae), with an updated checklist of world species, pp. 37-74 in European Journal of Taxonomy 722 on pages 44-45, DOI: 10.5852/ejt.2020.722.1133, http://zenodo.org/record/413433
Sathytes obliquus Shen & Yin 2020, sp. nov.
No full textSathytes obliquus Shen & Yin, sp. nov. (Fig. 5) Type material (1 ex.). HOLOTYPE: CHINA: ♂, ‘ China: C. Zhejiang, Zhuji City, Caota Town (草»镇), Dashanxia Vill. (± ƜTIJ), 29°38’44”N, 120°07’53”E, leaf litter, sifted, 100 m, 29.v.2012, T-X. Zhao leg.’ (SNUC). Diagnostic description. Male. Body (Fig. 5A) reddish-brown, mouthparts and tarsi paler. Body length 2.85 mm. Head slightly wider than long, length from anterior margin of clypeus to base 0.54 mm, width across eyes 0.60 mm. Each eye composed of about 20 facets. Length of eyes (0.17 mm) / length of tempora (0.15 mm) approximately 1.1:1. Length of antenna 1.39 mm; club (Fig. 5B) formed by antennomeres 9–11; antennomere 9 (Fig. 5C) broadest at apical 1/3, with semi-membranous apophysis at apex of expansion; antennomere 10 transverse, obconical; antennomere 11 (Fig. 5B) about 1.6 times as long as wide, with large apically truncate protuberance bearing tuft of long apical setae at base (Fig. 5D). Pronotum slightly longer than broad, length along midline 0.50 mm, maximum width 0.48 mm. Elytra transverse, length along suture 0.95 mm, maximum width 1.10 mm. Abdomen widest at tergite 1 (IV), and narrowing apically; mid-length of dorsally exposed part 0.76 mm, maximum width 0.93 mm. Length of aedeagus (Fig. 5E) 0.33 mm; broad median lobe slightly constricted near middle. Female. Unknown Comparative notes. Sathytes obliquus is morphologically most similar to S. longitrabis Yin & Li in sharing the semi-membranous apophysis located at the apical half of antennomere 9, and antennomere 11 bearing single protuberance at the base. These two species can be separated by the much larger body of the new species (2.85 mm vs. 2.21 mm), and the protuberance of antennomere 11 is relatively much longer. Distribution. China: Zhejiang. Etymology. The specific name refers to the oblique antennomere 9 of the male.Published as part of Shen, Qi & Yin, Zi-Wei, 2020, Five new species and a new record of Sathytes Westwood from eastern China (Coleoptera: Staphylinidae: Pselaphinae), pp. 386-394 in Zootaxa 4751 (2) on pages 392-393, DOI: 10.11646/zootaxa.4751.2.13, http://zenodo.org/record/371303
Triomicrus contus Shen and Yin, new species
No full textTriomicrus contus Shen and Yin, new species (Fig. 5) Type material (5 ♂♂, 9 ♀♀). Holotype: China: ♂, labeled ‘ China: C. Zhejiang, Zhuji, Mt. W. Majian Town (马 剑镇), 29 ° 43 ’ 23 ’’N, 119 ° 59 ’08’’E, leaf litter, sifted, 200 m, 15.vi. 2012, T.-X. Zhao leg.’ (SNUC). Paratypes: China: 1 ♀, same data as holotype (SNUC); 1 ♀, labeled ‘ China: C. Zhejiang, Zhuji, Mt. W. Majian Town, 29 ° 43 ’ 16 ’’N, 119 ° 58 ’ 51 ’’E, leaf litter, sifted, 300 m, 30.vi. 2012, T.-X. Zhao leg.’ (SNUC); 1 ♂, labeled ‘ China: W. Jiangxi Province, Yichun City, Mingyue Shan (明月山), 27 ° 35 ’ 13 ’’N, 114 ° 16 ’ 53 ’’E, mixed forest, leaf litter, wood, sifted & beating, ca. 1600 m, 22.x. 2013, Peng, Shen & Yan leg.’ (SNUC); 3 ♂♂, 7 ♀♀, also from Mingyue Shan, ‘ 27 ° 35 ’ 44 ’’N, 114 ° 16 ’ 26 ’’E, mixed forest, leaf litter, wood, sifted & beating, ca. 1140 m, 23.x. 2013, Peng, Shen & Yan leg.’ (SNUC). Diagnosis. Antennomere XI with relatively deep impression surrounding slightly prominent, disc-like protuberance near base. Head lacking median vertexal carina. Pronotum finely punctate. Elytral subhumeral sulci absent. Profemora simple, protrochanters and protibiae lacking spur or spine, mesotibiae lacking denticle. Apical lamina of abdominal sternite VII broadest near the middle and arcuate toward apex. Aedeagus with right paramere strongly curved mesally, internal sac bearing several sclerotized spines and several densely hairy sclerites. Description. Male (Fig. 5 A). Length 2.13–2.20 mm. Head longer than wide, HL 0.42–0.46 mm, HW 0.41– 0.43 mm, lacking median vertexal carina; lateral portions of frons finely punctate; each eye composed of about 35 facets. Antennomere XI (Fig. 5 B–C) with relatively deep impression surrounding slightly prominent disc-like protuberance near base, diameter of impression about half of segmental length. Pronotum wider than long, PL 0.40–0.44 mm, PW 0.49–0.52 mm, with fine punctation. Profemora simple, protrochanters and protibiae lacking spur or spine, mesotibiae lacking denticle. Elytra wider than long, EL 0.75–0.80 mm, EW 0.83–0.85 mm, smooth; subhumeral sulci absent. Abdomen wider than long, AL 0.48–0.52 mm, AW 0.78–0.82 mm; abdominal tergite IV (first visible tergite) with discal carinae extending to two-thirds of tergal length; abdominal sternite VII modified (Fig. 5 D), with apical lamina broadest near middle and obliquely arcuate toward apex. Length of aedeagus (Fig. 5 F) including parameres 0.42 mm, with right paramere strongly curved mesally, internal sac bearing several sclerotized spines and densely hairy sclerite. Female. Similar to male; antennomere XI unmodified. Each eye composed of about 24 facets. Measurements: BL 1.95–2.10 mm, HL 0.40–0.45 mm, HW 0.40–0.41 mm, PL 0.38–0.42 mm, PW 0.48–0.51 mm, EL 0.68–0.73 mm, EW 0.78–0.80 mm, AL 0.46–0.50 mm, AW 0.78–0.80 mm. Distribution. Eastern China: Zhejiang and Jiangxi. Etymology. The specific epithet ‘ contus ’ means ‘a pike, lance’, referring to the shape of the apical lamina of sternite VII. Remarks. Populations from the Majian Town and Mingyue Mountain exhibit only slight geographic variation. Apical lamina of abdominal sternite VII of the population from Majian Town (Fig. 5 D) is slightly more slender than in the population from Mingyue Mountain (Fig. 5 E). Illustrations of the aedeagus (Fig. 5 F–G) found in each population are provided here.Published as part of Shen, Jia-Wei, Yin, Zi-Wei & Li, Li-Zhen, 2015, Triomicrus Sharp of Eastern China (Coleoptera: Staphylinidae: Pselaphinae), pp. 509-528 in Zootaxa 4007 (4) on pages 515-516, DOI: 10.11646/zootaxa.4007.4.3, http://zenodo.org/record/25422
Triomicrus hamus Shen and Yin, new species
No full textTriomicrus hamus Shen and Yin, new species (Fig. 10) Type material (2 ♂♂, 2 ♀♀). Holotype: China: ♂, labeled ‘ China: W. Jiangxi Province, Luxi County (芦溪县), Wugong Shan (武功山), 27 ° 27 ’ 53 ’’N, 114 ° 10 ’ 47 ’’E, mixed forest, leaf litter, wood sifted & beating, ca. 1570 m, 27.x. 2013, Peng, Shen & Yan leg.’ (SNUC). Paratypes: China: 1 ♂, same data as holotype (SNUC); 2 ♀♀, also from Wugong Shan, ‘ 27 ° 27 ’ 59 ’’N, 114 °09’ 54 ’’E, mixed forest, leaf litter, wood sifted & beating, ca. 1050 m, 28.x. 2013, Peng, Shen & Yan leg.’ (SNUC). Diagnosis. Antennomere XI with impression in median region surrounding disc-like protuberance, slightly prominent. Head lacking median vertexal carina. Pronotum relatively smooth. Elytral subhumeral sulci short, barely reaching half of elytral length. Profemora simple, protrochanters lacking spine, protibiae with distinct preapical denticle, mesotibiae lacking denticle. Apical lamina of abdominal sternite VII strongly transverse, pointed at apex of lateral margin. Aedeagus with right paramere curved mesally, internal sac bearing several sclerotized spines and densely hairy sclerite. Description. Male (Fig. 10 A). Length 2.31–2.39 mm. Head longer than wide, HL 0.54–0.55 mm, HW 0.45– 0.46 mm, lacking median vertexal carina; lateral portions of frons finely and sparsely punctate; each eye composed of about 34 facets. Antennomere XI (Fig. 10 B–C) with impression in median region surrounding disc-like protuberance, slightly prominent, diameter of impression about three-fifths of segmental length. Pronotum wider than long, PL 0.49–0.50 mm, PW 0.53–0.55 mm, relatively smooth. Profemora simple, protrochanters lacking spur, protibiae with distinct preapical denticle (Fig. 10 D), mesotibiae lacking denticle. Elytra wider than long, EL 0.85–0.87 mm, EW 0.88–0.90 mm, smooth; subhumeral sulci short, barely reaching half of elytral length. Abdomen wider than long, AL 0.44–0.46 mm, AW 0.79–0.81 mm; abdominal tergite IV (first visible tergite) with discal carinae extending to three-fifths of tergal length; abdominal sternite VII modified (Fig. 10 E), with apical lamina strongly transverse, pointed at apex of lateral margin. Length of aedeagus (Fig. 10 F) including parameres 0.37 mm, with right paramere curved mesally, internal sac bearing several sclerotized spines and densely a hairy sclerite. Female. Similar to male; antennomere XI and protibiae unmodified. Each eye composed of about 19 facets. Measurements: BL 2.18–2.30 mm, HL 0.53–0.54 mm, HW 0.43–0.45 mm, PL 0.46–0.48 mm, PW 0.51–0.53 mm, EL 0.78–0.82 mm, EW 0.85–0.90 mm, AL 0.43–0.45 mm, AW 0.79–0.80 mm. Distribution. Eastern China: Jiangxi. Etymology. The specific epithet ‘ hamus ’ means ‘a hook, spike’, referring to the shape of the apical lamina of sternite VII.Published as part of Shen, Jia-Wei, Yin, Zi-Wei & Li, Li-Zhen, 2015, Triomicrus Sharp of Eastern China (Coleoptera: Staphylinidae: Pselaphinae), pp. 509-528 in Zootaxa 4007 (4) on pages 520-521, DOI: 10.11646/zootaxa.4007.4.3, http://zenodo.org/record/25422
Experimental flow boiling study in a 0.52 mm diameter vertical tube using R134a
No full textThis article is also available online from the link below.Experimental results for R134a boiling on a vertical stainless steel tube of internal diameter 0.52 mm are presented in this paper. They form part of an ongoing study of flow boiling in a wide range of small diameter tubes. Other parameters were varied in the range: mass flux 300-700 kg/m2.s; heat flux 1.6-75 kW/m2 and pressure 6 -10 bar. The flow patterns visualised at the exit of the heated test section are first presented. The variation of the heat transfer coefficient with thermodynamic quality and its dependence on heat flux, mass flux and system pressure is then presented and discussed
Amynthas quadriorbis Shen and Chang
No full textAmynthas quadriorbis Shen and Chang, sp. nov. (Figure 2) Type material Holotype. Clitellate (107 mm in length, dissected) collected 17 July 2007 from roadside slope along Waihu Creek (elevation 230 m) near the borders of Douliou and Linnei, Yunlin by C.H. Chang, T.J. Lin and Y.H. Lin (TESRI-O-H- 47) (voucher number: WH 3 P 1). Paratype. One clitellate collected 15 August 2007 from type locality by C.H. Chang, Y.H. Lin and Y.P. Li (TESRI-O-P- 42). Diagnosis Medium earthworm; length (clitellates) 107 – 120 mm. Segments numbering 103 – 129. Setae 60 – 68 in VII, 73 – 76 in XX and 15 – 18 between male pores. Clitellum XIV – XVI. First dorsal pore in 11 / 12. Spermathecal pores invisible or small, three pairs in 6 / 7 – 8 / 9, 0.29 – 0.30 body circumference ventrally apart. Genital papillae absent in preclitellar region. Male pores 0.24 body circumference ventrally apart in XVIII, each on a round porophore surrounded by two to four circular or diamond-shaped shallow skin folds. Two large genital papillae medial to each male porophore: one immediately adjacent to intersegmental furrow of 17 / 18 and the other to 18 / 19. Spermathecae small, three pairs in VII – IX. Seminal vesicles small, two pairs in XI and XII, occupying two-thirds of segmental compartment, each vesicle with a prominent, round or oval dorsal lobe. Prostate glands small in XVII – XVIII. Prostatic duct stout, C-shaped. Accessory glands absent. Description External characters. Total length (clitellates) 107 – 120 mm. Weight 1.19 – 1.54 g. Segments numbering 103 – 129. Clitellum XIV – XVI, setae and dorsal pores absent, length 3.65 – 4.59 mm and width 3.83 – 4.21 mm. Prostomium epilobous. Setae minute, numbering 60 – 68 in VII, 73 – 76 in XX and 15 – 18 between male pores in XVIII. First dorsal pore in 11 / 12. Spermathecal pores invisible or small, three pairs in intersegmental furrows of 6 / 7 – 8 / 9; distance between paired pores 0.29 – 0.30 body circumference ventrally apart. Genital papillae absent in the preclitellar region. Female pore single, mid-ventral in XIV. Male pores paired in XVIII, about 0.24 body circumference ventrally apart, each on a round porophore surrounded by two to four circular or diamond-shaped shallow skin folds. Two large genital papillae medial to each male porophore: one presetal and the other postsetal with the former immediately adjacent to intersegmental furrow of 17 / 18 and the latter to 18 / 19, both confined in segment XVIII, 0.45 – 0.60 mm in diameter with depressed centre (Figure 2 a). Preserved specimens brown on dorsum, brown to greyish brown on clitellum, and greyish on ventrum. Internal characters. Septa 5 / 6 – 7 / 8 thick, 10 / 11 – 13 / 14 muscular, 8 / 9 / 10 absent. Nephridial tufts on anterior faces of 5 / 6 / 7. Gizzard large in VIII – X. Intestine enlarged from XVI. Intestinal caeca paired in XXVII, extending anteriorly to XXII, each long, simple, stout, slightly bent. Oesophageal hearts in XI – XIII. Spermathecae small, three pairs in VII – IX (sexthecate) (Figure 2 b). Each ampulla pearshaped or elongated oval-shaped, 0.56 – 1.03 mm long and 0.40 – 0.70 mm wide, with a slender or stout spermathecal stalk 0.35 – 0.58 mm in length. Diverticulum with an iridescent, oval-shaped seminal chamber of 0.25 – 0.50 mm long and a slender stalk of 0.60 – 0.68 mm in length. Accessory glands absent in the preclitellar region. Holandry: testes small, oval, two pairs in ventrally joined sacs in X and XI. Seminal vesicles small, transversely elongated, two pairs in XI and XII, occupying two-thirds of segmental compartment, each vesicle with a prominent, round or oval dorsal lobe. Prostate glands small in XVII – XVIII, smooth, lobed, flower-like. Prostatic duct stout, C-shaped (Figure 2 c). Accessory glands absent. DNA barcode GenBank accession number KU 232820 (WH 3 P 1, holotype). Etymology The name quadriorbis refers to the four large genital papillae in the male pore region. Remarks Amynthas quadriorbis sp. nov. is only known from its type locality in the foothills at elevations <250 m near Douliou, Yunlin, southwestern Taiwan. According to Tsai et al. (2004), the number of native earthworm species decreased while the number of exotic species increased with decreasing elevation, and this species shift is primarily attributable to habitat replacement due to human disturbance. Nowadays only seven native species, Metaphire formosae (Michaelsen, 1922), Amynthas swanus (Tsai 1964), Amynthas binoculatus Tsai, Shen and Tsai, 1999, Amynthas sexpectatus Tsai, Shen and Tsai, 1999, Amynthas tungpuensis Tsai, Shen and Tsai, 1999, Metaphire bununa Tsai, Tsai and Liaw, 2000 and Amynthas penpuensis Shen, Tsai and Tsai, 2003, were found at elevations below 500 m in centro-western Taiwan with A. swanus being the rarest (Tsai et al. 2004 and unpublished data, H.-P. Shen). The fact that A. quadriorbis has only been found in one location throughout the extensive surveys conducted in the region in the last decade suggests that A. quadriorbis is also rare. With their habitat subjected to intensive agricultural activities, both A. swanus and A. quadriorbis may be considered as an endangered species. Amynthas quadriorbis has three pairs of spermathecal pores in intersegmental furrows of 6 / 7 – 8 / 9, and so belongs to the holandric, sexthecate sieboldi species-group of the genus Amynthas (Sims and Easton 1972). Among the members of the sieboldi -group, the peregrine Amynthas hupeiensis (Michaelsen, 1895) from China and Amynthas obscurus (Goto and Hatai, 1898) from Japan have a genital papilla arrangement in the male pore area similar to A. quadriorbis. However, A. hupeiensis has paired genital papillae in the intersegmental furrows of 17 / 18 and 18 / 19 (Chen 1933; Tsai 1964), much higher setal number than A. quadriorbis with 100 – 121 in VIII and 79 – 88 in XX (Tsai 1964) and very long diverticula (Chen 1933; Tsai 1964). Amynthas obscurus is smaller (80 mm long with 76 segments), has an additional pair of papillae in postsetal XIX, and has much lower setal number with 35 – 38 in the spermathecal segments (Goto and Hatai 1898). The arrangement of genital papillae in the male pore area of A. quadriorbis is also similar to that of Amynthas modiglianii (Rosa 1889) from Nias, Indonesia, Amynthas micronarius (Goto and Hatai, 1898) from Japan, and Amynthas tetrapapillatus Quan and Zhong, 1989 from Hainan Island, China. Amynthas modiglianii is an octothecate earthworm with four pairs of spermathecal pores in intersegmental furrows of 5 / 6 – 8 / 9 and has coiled diverticula (Rosa 1889; Michaelsen 1934). Amynthas micronarius is also octothecate without diverticula or with minute diverticula, and has much lower setal number than A. quadriorbis with 26 – 39 in VII and 33 – 51 in XX (Ohfuchi 1937) and welldeveloped prostate glands (Goto and Hatai 1898; Ohfuchi 1937). As for A. tetrapapillatus, it has paired genital papillae in the intersegmental furrows of 17 / 18 and 18 / 19, a pair of spermathecal pores on the dorsal side of the intersegmental furrow of 5 / 6, and much higher setal number than A. quadriorbis with 93 – 107 in VII and 86 – 102 in XX (Quan and Zhong 1989).Published as part of Shen, Huei-Ping, Chang, Chih-Han & Chih, Wen-Jay, 2016, Four new earthworm species of the genus Amynthas (Megascolecidae: Oligochaeta) from southwestern Taiwan with re-description of Amynthas tungpuensis Tsai, Shen and Tsai, 1999, pp. 1889-1910 in Journal of Natural History 50 (29 - 30) on pages 3-7, DOI: 10.1080/00222933.2016.1180721, http://zenodo.org/record/26905
Triomicrus inaequalis Shen and Yin, new species
No full textTriomicrus inaequalis Shen and Yin, new species (Fig. 11) Type material (1 ♂, 2 ♀♀). Holotype: China: ♂, labeled ‘ China: Anhui, Anqing City, Qianshan country (潜山县), Tianzhu Shan (天柱山), mixed leaf litter, sifted, alt. 960 m, 23.iv. 2005, Hu & Tang leg.’ (SNUC). Paratypes: China: 2 ♀♀, same data as holotype (SNUC). Diagnosis. Antennomere XI with impression surrounding moderately prominent disc-like protuberance near base. Head lacking median vertexal carina. Pronotum relatively smooth. Elytral subhumeral sulci long, reaching level of metacoxae. Profemora enlarged, protrochanters with long spine, protibiae lacking modification, mesotibiae lacking denticle. Apical lamina of abdominal sternite VII composed of two sclerites, each curved mesally. Aedeagus with right paramere curved mesally, internal sac bearing several sclerotized spines, lacking hairy sclerite. Description. Male (Fig. 11 A). Length 2.21 mm. Head longer than wide, HL 0.48 mm, HW 0.44 mm, lacking median vertexal carina; lateral portions of frons relatively smooth; each eye composed of about 33 facets. Antennomere XI (Fig. 11 B–C) with impression surrounding moderately prominent disc-like protuberance near base, diameter of impression about two-fifths of segmental length. Pronotum wider than long, PL 0.48 mm, PW 0.55 mm, relatively smooth. Profemora strongly enlarged, protrochanters with long spine (Fig. 11 D), protibiae lacking modification, mesotibiae lacking denticle. Elytra wider than long, EL 0.84 mm, EW 0.90 mm, smooth; subhumeral sulci long, reaching level of metacoxae. Abdomen wider than long, AL 0.43 mm, AW 0.83 mm; abdominal tergite IV (first visible tergite) with discal carinae extending to two-fifths of tergal length; abdominal sternite VII modified (Fig. 11 E), with apical lamina composed of two sclerites, each curved mesally, apical half of right one slender, gradually narrowed toward apex. Length of aedeagus (Fig. 11 F) including parameres 0.42 mm (aedeagus with left paramere broken off), with right paramere curved mesally, internal sac bearing several sclerotized spines, lacking hairy sclerite. Female. Similar to male; antennomere XI, and profemora unmodified. Each eye composed of about 19 facets. Measurements: BL 1.96–2.05 mm, HL 0.42–0.44 mm, HW 0.40–0.43 mm, PL 0.41–0.43 mm, PW 0.54–0.55 mm, EL 0.74–0.75 mm, EW 0.86–0.88 mm, AL 0.40–0.43 mm, AW 0.80–0.81 mm. Distribution. Eastern China: Anhui. Etymology. This specific epithet ‘ inaequalis ’ means ‘uneven, unequal’, referring to the shape of the apical lamina of sternite VII.Published as part of Shen, Jia-Wei, Yin, Zi-Wei & Li, Li-Zhen, 2015, Triomicrus Sharp of Eastern China (Coleoptera: Staphylinidae: Pselaphinae), pp. 509-528 in Zootaxa 4007 (4) on pages 521-522, DOI: 10.11646/zootaxa.4007.4.3, http://zenodo.org/record/25422
Sathytes xizangensis Yin & Shen 2020, sp. nov.
No full textSathytes xizangensis sp. nov. urn:lsid:zoobank.org:act: F9F70319-A210-4FAC-A99E-1176460E4E55 Fig. 16 Differential diagnosis The male of S. xizangensis sp. nov. is morphologically similar to that of S. grandis (Nepal), S. chayuensis sp. nov. (China: Xizang), S. magnus (China: Xizang) and S. tangliangi (China: Yunnan) in sharing the single basal protuberance of antennomere 11 and oblique mesal margin of antennomere 9. It can be separated from S. grandis and S. magnus by the much smaller body size (2.53–2.73 mm vs 3 mm for S. grandis and 3.36 mm for S. magnus) and more distal position of the apophysis of antennomere 9; from S. chayuensis sp. nov. by the much shorter antennomere 11; and from S. tangliangi by the larger basal protuberance and more distal position of the apophysis of antennomere 9. Etymology The new species is named after Xizang Province (= Tibet), where the type locality of this species is situated. Type material (29 specimens) Holotype CHINA • ♂; Xizang, Nyingchi, Pailong Country; 30°0′34.71″ N, 94°57′57.64″ E; alt. 2190 m; 15 Jul.– 1 Aug. 2019; Z.-W. Yin leg.; FIT (flight intercept trap); SNUC. Paratypes CHINA • 23 ♂♂, 2 ♀♀; same collection data as for holotype; SNUC • 2 ♂♂; Xizang, Linzhi City, Pailong Village; alt. 2069 m, 30°01′11.11″ N, 95°00′0.46″ E; 15 Mar. 2017; X.-B. Song leg.; SNUC • 1 ♂; Xizang, Linzhi City, near Pailong village; 30°01′10″ N, 94°59′48″ E; alt. 2040 m; 6 Jul. 2018; Cheng, Peng and Shen leg.; mixed leaf litter, sifted; SNUC. Description Male MEASUREMENTS. AeL = 0.22 mm; AnL = 1.25–1.29 mm; AL = 0.65–0.73 mm; AW = 0.82–0.88 mm; TBL = 2.53–2.73 mm; EL = 0.76–0.83 mm; EW = 0.95–1.01 mm; HL = 0.55–0.58 mm; HW = 0.46– 0.49 mm; LE = 0.17 mm; LT = 0.17 mm; PL = 0.57–0.59 mm; PW = 0.55–0.57 mm. Body (Fig. 16A) reddish-brown, mouthparts and tarsi paler. Head longer than wide. Each eye composed of about 22 facets; LE: LT = 1. Antennal clubs (Fig. 16B) formed by antennomeres 9–11; inner margin of antennomere 9 (Fig. 16C) moderately oblique, semi-membranous apophysis at middle of mesal margin; antennomere 10 transverse, obconical; antennomere 11 (Fig. 16B) about 1.7 times as long as wide, each with single basal protuberance covered with tuft of setae at apex (Fig. 16D). Pronotum approximately as long as broad. Elytra moderately transverse. Abdomen widest at tergite 1 (IV) and narrowing apically. Aedeagus (Fig. 16E) almost symmetrical. Female MEASUREMENTS.AnL= 1.17–1.21 mm; AL = 0.77–0.78 mm; AW = 0.78–0.79 mm; TBL = 2.58–2.67 mm; EL = 0.71–0.73 mm; EW = 0.88–0.90 mm; HL = 0.54–0.58 mm; HW = 0.46–0.49 mm; LE = 0.15 mm; LT = 0.17 mm; PL = 0.56–0.58 mm; PW = 0.54–0.56 mm. Similar to male in size. Each eye composed of about 20 facets; LE:LT = 0.9. Antennal clubs lacking modifications. Distribution China: Xizang.Published as part of Yin, Zi-Wei & Shen, Qi, 2020, Fifteen new species of Sathytes Westwood from China (Coleoptera, Staphylinidae, Pselaphinae), with an updated checklist of world species, pp. 37-74 in European Journal of Taxonomy 722 on pages 63-65, DOI: 10.5852/ejt.2020.722.1133, http://zenodo.org/record/413433
Sathytes similis Shen & Yin 2020, sp. nov.
No full textSathytes similis Shen & Yin, sp. nov. (Fig. 6) Type material (7 exx). HOLOTYPE: CHINA: ♂, ‘ China: W. Jiangxi, Yichun City, Mingyueshan National Park (OiRNJDzë ḢDZ), 27°35’32–46”N, 114°17’13”–16’40”E, path in mixed forest, grass, leaf litter, sifted, 1200–1600 m, 12.vii.2013, Song, Yin, Yu leg.’ (SNUC). PARATYPE: CHINA: 1 ♀, same label data as holotype (SNUC); 1 ♂, ‘ China: W. Jiangxi, Pingxiang City, Wugongshan National Park (ǨṁƜOiẎĿDz), 27°27’55”N, 114°09’58”E, broad leaf, sifted, 1000–1350 m, 20.vii.2013, Song, Yin, Yu leg.’(SNUC); 2 ♀♀, same label data except for ‘cable way station to Dian-jiang-tai (ĕ"â), 27°27’39”N, 114°10’03”E, 1340–1400 m, 19.vii.2013 ’ (SNUC); 1 ♀, ‘Chi- na: W. Jiangxi, Ji’an City (ṅkhv), Jinggang Shan, Shuikou, 26°32’42”N, 114°08’03”E, mixed leaf litter, sifted, 790–900 m, 30.vii.2014, Chen, Hu, Lü & Yu leg. ’; China: S. Zhejiang, Longquan City, Fengyang Shan, Da-Tianping, 27°54’36”N, 119°10’20”E, bush leaf, moss, ferns, sifted & beating, 1320 m, 27.iv.2014, Peng, Song, Yan, Yin & Yu leg.’ (SNUC). Diagnostic description. Male. Body (Fig. 6A) dark reddish-brown, mouthparts and tarsi paler. Body length 1.95–2.10 mm. Head moderately wider than long, length from anterior margin of clypeus to base 0.36–0.39 mm, width across eyes 0.44–0.47 mm. Each eye composed of about 20 facets. Length of eyes (0.14 mm) / length of tempora (0.09 mm) approximately 1.6:1. Length of antennae 1.01–1.04 mm; club (Fig. 6B) formed by antennomeres 9–11; antennomere 9 (Fig. 6C) slightly transverse, semi-membranous apophysis at nearly upper half on mesal surface; antennomere 10 strongly transverse, obconical; antennomere 11 (Fig. 6B) about 1.9 times as long as wide, with two truncate basal protuberances, the more basal one covered with two tufts of specialized setae at apex (Fig. 6D). Pronotum slightly longer than wide, length along midline 0.45–0.51 mm, maximum width 0.43–0.49 mm. Elytra transverse, length along suture 0.61–0.68 mm, maximum width 0.76–0.77 mm. Abdomen widest at tergite 1 (IV), and narrowing apically; mid-length of dorsally exposed part 0.48–0.54 mm, maximum width 0.66–0.68 mm. Length of aedeagus (Fig. 6E) 0.25 mm; median lobe almost symmetric. Female. Similar to male in size. Body length 1.98–2.03 mm. Head slightly wider than long, length from anterior margin of clypeus to base 0.42–0.43 mm, width across eyes 0.45–0.46 mm. Each eye composed of about 20 facets. Length of eyes (0.12 mm) / length of tempora (0.05 mm) 2.4:1. Length of antennae 0.89–0.93 mm. Pronotum slightly longer than wide, length along midline 0.46–0.49 mm, maximum width 0.44–0.47 mm. Elytra moderately transverse, length along suture 0.58–0.62 mm, maximum width 0.75–0.76 mm. Abdomen widest at tergite 1 (IV), and narrowing apically; mid-length of dorsally exposed part 0.53–0.58 mm, maximum width 0.71–0.73 mm. Comparative notes. Sathytes similis is morphologically close to S. paulus Yin & Li and S. wuyishanus Yin & Li in the form of antennomeres 9 and 11, and may be separated from both by the much larger body size (1.95–2.10 mm vs. 1.59–1.66 mm of S. paulus, and 1.54 mm of S. wuyishanus), and the relatively more transverse antennomere 2 in relation to antennomere 3. Distribution. China: Zhejiang, Jiangxi. Etymology. The new specific epithet ‘ similis ’ refers to the morphological similarity between the new species and its congeners.Published as part of Shen, Qi & Yin, Zi-Wei, 2020, Five new species and a new record of Sathytes Westwood from eastern China (Coleoptera: Staphylinidae: Pselaphinae), pp. 386-394 in Zootaxa 4751 (2) on pages 393-394, DOI: 10.11646/zootaxa.4751.2.13, http://zenodo.org/record/371303
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