Four new species of the Glyphiulusjavanicus group from southern China (Diplopoda, Spirostreptida, Cambalopsidae) Author Jiang, Xuankong Author Guo, Xuan Author Chen, Huiming Author Xie, Zhicai text ZooKeys 2018 741 155 179 http://dx.doi.org/10.3897/zookeys.741.23223 journal article http://dx.doi.org/10.3897/zookeys.741.23223 1313-2970-741-155 B483280514EF406EA31EC6F8D99B7C4B B483280514EF406EA31EC6F8D99B7C4B Glyphiulus impletus sp. n. Figs 1D, 17, 18, 19, 20, 21 Type material. Holotype male, China: Guangxi Zhuang Autonomous Region, Lingyun County, Luolou Town, Geding Village, Longcitun, Guanyin Cave 24°24.700'N , 106°49.517'E , alt. 830 m, 4 Jan. 2017, X.K. Jiang, H.M. Chen & X. Guo leg. (IBGAS). Paratypes: 22 males, 26 females and 9 juveniles, same date and locality as holotype (IBGAS); 17 males, 14 females and 43 juveniles, Lingyun County, Luolou Town, Geding Village, Longweitun, Paifang Cave 24°24.884'N , 106°48.900'E , alt. 830 m, 4 Jan. 2017, X.K. Jiang, H.M. Chen & X. Guo leg. (IBGAS). Other material examined. Seven males, 6 females and 4 juveniles, Lingyun County, Sicheng Town, Shuiyuan Cave 24°21.992'N , 106°34.670'E , alt. 450 m, 3 Jan. 2011, H.M. Chen leg. (IBGAS); 17 males and 14 females, Lingyun County, Sicheng Town, Naling Cave 24°21.926'N , 106°33.911'E , alt. 500 m, 4 Jan. 2011, H.M. Chen leg. (IBGAS); 3 males and 1 female, Fengshan County, Yuanyang Cave 24°32.518'N , 107°03.768'E , alt. 640 m, 3 Jan. 2017, X.K. Jiang, H.M. Chen & X. Guo leg. (IBGAS); 1 male, 2 females and 1 juvenile, Nandan County, Bachuan Cave 25°03.966'N , 107°37.392'E , 31 Jan . 2017, H.M. Chen & C. Chen leg. (IBGAS); 17 males, 24 females and 24 juveniles, Donglan County, Xinyan Village, Qiumotun, Ganma Cave 24°26.784'N , 107°20.584'E , alt. 320 m, 2 Feb. 2017, H.M. Chen & C. Chen leg. (IBGAS). Etymology . This specific name is derived from the Latin word impletus , meaning 'plentiful' , referring to the large number of specimens of the new species in our collections. Diagnosis. The new species can be diagnosed by the following combination of morphological characteristics: (1) all crests on collum complete and fully developed, carinotaxic formula I-III + P + M; (2) telopodite of male leg I bi-segmented, shorter than coxal process; (3) coxosternal mesal process of anterior gonopod slender and strongly prolonged; (4) flagellum of posterior gonopod short and zigzag-shaped. See also Key below. Description. Body segments with 71-82p + 1a + T (holotype 73p + 1a + T). Body ca. 51-66 mm long and 2.3-3.2 mm wide (holotype 64 mm and 3.0 mm, respectively). Colouration. Brown to dark brown in vivo (Fig. 1D). In fixed condition, yellow-brown to red-brown, tergal crests dark red-brown to castaneous brown (Fig. 17 A-F ). Figure 17. Glyphiulus impletus sp. n., holotype. A anterior part of body, dorsal view B same, lateral view C midbody segments, dorsal view D same, lateral view E posterior part of body, dorsal view F same, ventral view. Head. Each eye patch with 7-20 pigmented ocelli arranged in 1-3 irregular vertical rows (Fig. 17A, B). Antennae slender, 2.34-3.31 mm long. Terminal part of antennomeres V obviously expanded (Fig. 17B). Gnathochilarium with a separate promentum, polytrichous (Fig. 18A). Figure 18. Glyphiulus impletus sp. n., holotype. A gnathochilarium, ventral view B legs I, anterior view C legs II, caudal view D legs III, caudal view E cross-section of a midbody segment, caudal view F midbody leg, anterior view. Abbreviations: CP = coxal process; P = penes; T = telopodite. Collum. All crests on collum complete and fully developed, carinotaxic formula I-III + P + M (Fig. 17A, B). Body segments. Postcollum constriction modest (Fig. 17A). Metaterga strongly crested (Fig. 17 A-E ). Metatergal crests divided into two transverse rows of tubercles, carinotaxic formula 2/2+I/i+3/3+I/i+2/2. Anterior tubercle (except ozoporiferous one) small and upright, posterior one directed caudally, both tubercles with sharp tips (Fig. 17 A-E ). Ozoporiferous tubercle round, higher than broad, obviously larger than other tubercles (Fig. 18E). Location of the tubercle behind ozopore relatively medial, set off from ozoporiferous tubercle in caudal view (Figs 17 B-E , 18E). Lateral crests well developed. Midbody rings round in cross-section (Fig. 18E), 1.88-2.42 mm high (vertical diameter) and 1.91-2.42 mm wide (horizontal diameter), the ratio of height to width 0.95-1.00. Telson. Epiproct simple, with a rounded caudal ridge and a strong dorsal tooth. Paraprocts convex, polytrichous. Hypoproct crescent-shaped (Fig. 17E, F). Walking legs. Slender, 2.52-3.41 mm long, longer than body width (Fig. 18E, F). Male sexual characters. Telopodite of male legs I strongly degraded, bi-segmented (Fig. 18B). Penes rather small and oval (Fig. 18C). Male legs II and III modified as usual (Fig. 18C, D). Femora VI and VII normal, not inflated. Anterior gonopods. Coxosternum shield-like, sunken medially. Coxosternal mesal process slender and strongly prolonged. Telopodite thin, curved with a rounded tip, and a field of microsetae at base (Figs 19A, 20A, 21A). Figure 19. Glyphiulus impletus sp. n., holotype. A anterior gonopods, caudal view B posterior gonopods, caudal view. Figure 20. Glyphiulus impletus sp. n., paratype. A anterior gonopods, caudal view B posterior gonopods, caudal view C flagellum of posterior gonopods D microsetae at lateral margin of posterior gonopods. Scale bars: A 0.2 mm B 0.15 mm C, D 0.3 mm. Figure 21. Glyphiulus impletus sp. n., holotype. A anterior gonopods, caudal view B posterior gonopods, caudal view. Abbreviations: C = coxosternum; CMP = coxosternal mesal process; F = flagellum; L = lamelliform lobe; T = telopodite. Scale bars: A, B 0.1 mm. Posterior gonopods. Mediolateral margins of coxite brush-like. Flagella short and zigzag-shaped. Lateral margin with a field of microsetae (Figs 19B, 20B, 21B). Distribution. Known from the type locality and several caves scattered in northwestern Guangxi. Figure 22. Distributions of Glyphiulus foetidus sp. n., Glyphiulus calceus sp. n., Glyphiulus guangnanensis sp. n. and Glyphiulus impletus sp. n.