Nedyopus hsientienensis (Wang, 1957) Chen & Golovatch & Chang, 2006

Chen, Chao-Chun, Golovatch, Sergei I. & Chang, Hseuh-Wen, 2006, The millipede tribe Nedyopodini, with special reference to the fauna of Taiwan (Diplopoda: Polydesmida: Paradoxosomatidae), Journal of Natural History 39 (47), pp. 3997-4030 : 4003-4005

publication ID	https://doi.org/ 10.1080/00222930600556112
persistent identifier	https://treatment.plazi.org/id/03CC8786-FFFF-FFF1-EE33-FCA5FE9EFAF6
treatment provided by	Felipe
scientific name	Nedyopus hsientienensis (Wang, 1957)
status	comb. nov.

Treatment

Nedyopus hsientienensis (Wang, 1957) View in CoL , comb. n.

( Figures 1–10 View Figures 1–10 , 53–61 View Figures 53–61 , 97–102 View Figures 97–102 )

Neotype (here designated): „ ( NSYSUB-DI 216 ), Taiwan ( R.O.C.), Taipei City , JhihNanGong, 206 m a.s.l., March 2002, leg. C.-C. Chen and C.-E. Yang.

Other material. 6 „, 7♀, one juvenile (NSYSUB-DI 198–211), 2 „, 2♀ ( ZMUM), Pingtung County, SanDiMen, CingShan , ca 190 m a.s.l., under stones, 19 August 1999, leg. H.-W. Chang. 10♀ ( NSYSUB-DI 380–389 ), same county, ManJhou, JiuPeng , 20 m a.s.l., 28 April 1999 , same collector. 1 „ ( NSYSUB-DI 217 ), Kaohsiung County , TaoYuan, MaLiShau river, ChuYunShau forest path, ca 750 m a.s.l., 22 February 2000 , same collector. 1 „ ( NSYSUB-DI 218 ), Pingtung County, ManRen, GangKou river estuary, ca 30 m a.s.l., 21 April 1999, same collector. 1 „ ( NSYSUB-DI 219 ), same locality, NanRen Road, Police Office , under trees, below stones but above soil, ca 10 m a.s.l., 19 November 2001, leg. C.-C. Chen. 1 „ ( NSYSUB-DI 220 ), same county, LaiYi, NanHe , ca 90 m a.s.l., 19 August 1999, leg. H.-W. Chang. 1 „ , 1♀ ( NSYSUB-DI 221–222 ), same county, KenTin, LanRen River , 63 m a.s.l., 23 March 2002, leg. C.-C. Chen.

Diagnosis

Differs from congeners by a contrasting colour pattern, combined with the relatively welldeveloped paraterga, the densely setose postcollar metaterga, and the gonopod-telopodite tip consisting of only two lobes.

Description Length 12–15 („, n 56) or 17–18 mm (♀, n 56); width of midbody metazona 1.2–1.4 („) or

1.8–2.0 mm (♀). Neotype ca 14 mm long and 1.2 mm wide.

Coloration in alcohol brown to dark brown in both sexes; sometimes head and antennae slightly lighter brown, antennae increasingly blackish distally, but tip contrastingly pallid, epiproct very light brown to light brown; a wide, very light brown to light brown, moniliform axial stripe, narrowed-subtrapeziform on proterga and broadenedsubtrapeziform on metaterga; pleurosternal region, sterna, and legs pallid, sometimes distal podomeres pale brown (only in „).

Postcollar constriction rather faint, particularly in ♀, width of head,segments 5– 16.4.2.3>collum in „, head,segments 5–17.4.2.3>collum in ♀; further on toward telson trunk gradually and gently tapering both in width and height. Antennae short, clavate, reaching from stricture to end of segment 2 dorsally in „ ( Figures 1 View Figures 1–10 , 54 View Figures 53–61 ), a little shorter in ♀, only reaching from end of collum to prozonum 2. Paraterga relatively well developed ( Figures 1–3 View Figures 1–10 , 54–58 View Figures 53–61 ), calluses (cal) with three to four minute denticles at lateral margin ( Figures 1–3 View Figures 1–10 ) on segments 2–19; calluses delimited by a sulcus both dorsally and ventrally, though ventral sulcus is finer than dorsal one, more evident on pore-bearing segments; paraterga like low ridges, slightly surpassing caudal tergal contour on segments 2 ( Figures 1 View Figures 1–10 , 54 View Figures 53–61 ), 18, and 19, spiniform caudally. Axial line usually wanting, only poorly visible in places. Transverse sulcus evident on segments 5–18, reaching base of paraterga, wanting on segment 19, generally deep, slightly deeper in „, lineiform, clearly beaded at bottom ( Figures 2, 3 View Figures 1–10 , 55, 56 View Figures 53–61 ). Surface generally shiny and rather smooth, sometimes rugulose on posterior metaterga only of „, sometimes rugulose on metazonum 19 below paraterga; metazona below paraterga evidently and densely granular, contrastingly smooth to finely rugulose on segment 19. Limbus thin, caudal margin entire. Stricture between pro- and metaterga roughly beaded, particularly in „, general appearance of body submoniliform. Tergal setae long, pattern 5+5(6) anteriorly and 3+3(4) in the middle on collum in „, 4+5 and 3+ 3 in ♀, setae of anterior row on collum seldom abraded; numerous setae on all postcollar metaterga, two setae on each lateral callus of paraterga 2 and 19, and a single seta on paraterga 3–18, these lateral setae only seldom abraded. Ozopores lateral, lying on callus ca one-third metatergal length from caudal edge ( Figures 2 View Figures 1–10 , 56 View Figures 53–61 ). Pleurosternal carinae present, having the form of wide, straight (segments 2, 5–7) or rounded (segments 3 and 4) ridges on pregonopodial segments, with a distinct, granular, narrowly rounded, subtriangular tooth that nearly reaches the caudal metazonal margin on each of segments 6 and 7 („), or in the form of narrow ridges on segments 2–4 (♀), onward increasingly poorly developed, reduced to low bosses visible up to segment 17 in „ ( Figures 1, 2 View Figures 1–10 , 54, 56 View Figures 53–61 ) or to segment 16 or 17 in ♀, thereafter virtually absent. Epiproct digitiform, flattened dorsoventrally, long in lateral view, ratio of epiproct length to preepiproct length of telson 1:2.9 in „ ( Figure 58 View Figures 53–61 ), slightly shorter in ♀; subtruncate and emarginate in dorsal view; pre-apical papillae evident, close to apex ( Figures 4 View Figures 1–10 , 57 View Figures 53–61 ). Hypoproct more („) ( Figures 5 View Figures 1–10 , 59 View Figures 53–61 ) or less (♀) roundly subtriangular, 1+1 setae at caudal corners situated on well-separated knobs, sides concave at base.

Sterna modestly setose, not modified except for a linguiform, slightly emarginate, setose lamina between „ coxae 4 ( Figures 6 View Figures 1–10 , 60 View Figures 53–61 ); each cross-impression with an evident transverse sulcus but with a poorly developed, shallow axial groove.

Male legs 1–7 with tarsal brushes ( Figure 61 View Figures 53–61 ), thereafter tarsal setation thinning out, without brushes ( Figure 7 View Figures 1–10 ). Legs long, ca 1.5 times („) ( Figures 2 View Figures 1–10 , 56 View Figures 53–61 ) to almost as long as midbody height (♀).