Nedyopus wui, 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 : 4013-4026

publication ID	https://doi.org/ 10.1080/00222930600556112
persistent identifier	https://treatment.plazi.org/id/03CC8786-FFE5-FFE4-EEBD-F9FEFEC8FCCD
treatment provided by	Felipe
scientific name	Nedyopus wui
status	sp. nov.

Treatment

Nedyopus wui View in CoL , new species

( Figures 42–52 View Figures 42–52 , 89–96 View Figures 89–96 , 121–126 View Figures 121–126 ) Holotype: „ ( NSYSUB-DI 232 ), Taiwan ( R.O.C.), Nantou County, RenAi, HuaGer water source, 2553 m a.s.l., under stones, 22 August 2002, leg. C.-C. Chen and Y.-H. Lin.

Paratypes: 1 „, 2♀ ( NSYSUB-DI 233–235 ), 1 „ , 1♀ ( ZMUM), same locality and date, together with holotype. 2 „ ( NSYSUB-DI 238–239 ), Taichung County, HePing, Syuan , no. 710 forest path, ca 2050–2100 m a.s.l., 21 August 2002, same collector. 1 „ ( NMNS 4418-011 View Materials ), same county, AnMaShan, no. 1, fresh wood, 5–10 cm depth, 2000 m a.s.l., 28 May 1996, leg. R.-F. Chao. 1 „ ( NMNS 4418-012 View Materials ), same locality, no. 3, rotting wood, 10– 15 cm depth, 13 January 1996, same collector. 1 „ ( NSYSUB-DI 240 ), same locality, forested entertainment zone, 7 May 2003, leg. S.-I. Wu.

portion, lateral view. (65, 66) Segment 10 (S 10), dorsal view. (67) Segment 10 (S 10), lateral view. (68, 69) Epiproct, dorsal and lateral views, respectively. (70) Hypoproct, ventral view. (71, 72) Sternal lobe between coxae 4, ventral view. Scale bars: 0.5 mm (64); 0.4 mm (65, 69); 0.7 mm (67); 0.3 mm (66, 68, 71, 72); 0.2 mm (70).

Figures 62–72 View Figures 62–72 . (Continued.)

Diagnosis

Differs from congeners by the short antennae and epiproct, as well as in some other somatic and sexual characters (see below and key), with the tip of the gonotelopodite being supplied with four lobes.

Description

Length ca 16–17 („, n 55) or 17–19 mm (♀, n 55); width of midbody metazona 1.7–1.8 („) or 2.0 mm (♀). Holotype ca 16 mm long and 1.7 mm wide.

Coloration in alcohol light brown, sometimes slightly marbled; antennae darker brown, head, collum, segments 2–3 (4) and anterior part of telson brown; a wide, yellow to whitish, axial stripe, sometimes moniliform, broadened subtrapeziform on metaterga; sometimes paraterga similarly pallid also above and a little below calluses; pleurosternal region, sterna and basal segments of legs yellow-brown to light brown, distal podomeres up to basal third tarsi brown, distal third of tarsi pale brown. Coloration of ♀ usually slightly lighter brown, but axial stripe rather light brown, without being broadened subtrapeziform on metaterga, paraterga similarly lighter brown as body, sterna and basal segments of legs up to basal half of podomeres light brown, distal half of podomeres light yellow-brown, sometimes only distal third tarsi pale brown.

Main somatic and gonopod characters as in N. caudatus , but width of head5segment 255–16.collum54.3 in „, but head5255–16.collum54.3, or head5255–16.collum 5354 in ♀. Antennae relatively short, clavate, reaching from stricture to end of segment 2 dorsally in „ ( Figures 42 View Figures 42–52 , 90 View Figures 89–96 ), a little shorter in ♀, only reaching end of collum. Paraterga very poorly developed ( Figures 42–44 View Figures 42–52 , 90–92 View Figures 89–96 ), calluses with three to four minute denticles at lateral margin ( Figures 42–44 View Figures 42–52 ), on pore-bearing segments one of these lying just below ozopores, especially poorly expressed on segments 17–19, more evident in „ than in ♀; calluses delimited by a sulcus only dorsally, mostly like low ridges (poreless segments) or flat discs (pore-bearing segments), slightly surpassing caudal tergal contour only on segment 2 ( Figures 42 View Figures 42–52 , 90 View Figures 89–96 ). Axial line poorly visible only in places, usually missing. Transverse sulcus clearly („) to finely (♀) beaded at bottom, nearly reaching base of paraterga ( Figures 43, 44 View Figures 42–52 , 91, 92 View Figures 89–96 ). Surface of only rear halves of metaterga longitudinally rugulose ( Figures 42–44 View Figures 42–52 ), sometimes rugulose only on posterior segments in „, metazona below paraterga rugose to rugulose and evidently granular to granulose. Stricture between pro- and metaterga roughly beaded, rather deep so that general appearance of body quite moniliform; stricture slightly wider and deeper in „. Tergal setae short, pattern 2+2 anteriorly on collum, sometimes abraded (♀), and 1+1 also anteriorly on segments 2 and 3, thereafter abraded. Ozopores more dorsolateral in ♀, lying on callus ca one-third metatergal length from caudal edge ( Figures 43, 44 View Figures 42–52 ). Pleurosternal carinae present, like wide rounded ridges on pregonopodial segments („) or on segments 2–4 (♀), thereafter increasingly poorly developed, like low bosses traceable until segment 16 in „ ( Figures 42, 43 View Figures 42–52 , 90, 92 View Figures 89–96 ) or until segments 14–16 in ♀, onward missing. Epiproct short in lateral view (Figure 134), ratio of epiproct length to pre-epiproct length of telson 1:3.4 in „ ( Figure 94 View Figures 89–96 ), in dorsal view subtruncate, narrowly emarginate only in „; pre-apical papillae evident, sometimes nearly wanting in „, situated rather close to apex ( Figures 45 View Figures 42–52 , 93 View Figures 89–96 ). Hypoproct straightly to roundly subtrapeziform ( Figures 46 View Figures 42–52 , 95 View Figures 89–96 ), 1+1 setae at caudal corners situated on very small knobs, sides straight („, ♀) to slightly concave („).

Sterna modestly setose in „, more sparsely in ♀, not modified except for a narrowly notched, linguiform, setose lamina between „ coxae 4 and a paramedian pair of bunches of long setae between „ coxae 5 ( Figures 47 View Figures 42–52 , 96 View Figures 89–96 ).

Male legs 1 up to those of segment 13 with tarsal brushes ( Figure 48 View Figures 42–52 ), setation gradually thinning out toward telson, relatively modest after segment 14. Legs relatively short, about as long as midbody height in „ ( Figures 43 View Figures 42–52 , 92 View Figures 89–96 ), but only two-thirds midbody height in ♀.

Gonopods ( Figures 49–52 View Figures 42–52 , 121–126 View Figures 121–126 ) complex, much as in N. caudatus , but femorite with several folds on lateral side, l carrying a smooth to denticulate margin from midway distally; sph with four apical lobes (A, an emarginate B forming a separate lobe D, and C).

Etymology

Honours Dr Wu Sheng-Hai, Taichung, Taiwan, who provided much material for the present study.