Nedyopus, Attems, 1914

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 : 4027-4028

Key to the Taiwanese species of Nedyopus

1. Paraterga relatively to rather well developed ( Figures 1–3 , 32–34 , 55, 56 , 83, 84 ); metatergal transverse sulcus reaching base of paraterga 5–18; pleurosternal carinae with a caudal tooth on segments 5(6)–7; gonopod femorite narrowed to moderately broadened at base............... 2

– Paraterga very poorly developed ( Figures 11–13 , 22–24 , 42–44 , 65–67 , 75, 76 , 91, 92 ); metatergal transverse sulcus not reaching base of paraterga 5–18, or reaching the base only on some segments; pleurosternal carinae without caudal teeth; gonopod femorite always moderately broadened at base........ 3

2. Size larger: body length 26–31 mm, width 3.5–4.8 mm; colour pattern not contrasting; antennae long (reaching midpoint of metatergum 4); only few tergal setae until segment 3 ( Figure 32 ); axial line evident from collum to end of epiproct; gonopod femorite narrow at base, lamella (l) not divided; telopodite tip with three lobes ( Figures 39–41 , 115, 116, 118–120 )....... N. latus

– Body size smaller: length 12–18 mm, width 1.4–1.8 mm; colour pattern contrasting; antennae short (only reaching end of segment 2); numerous setae on all postcollar metaterga ( Figures 1–3 , 54, 55, 57, 58 ); axial line poorly visible or absent; gonofemorite moderately broadened at base, lamella (l) divided; telopodite tip with two lobes ( Figures 8–10 , 97–102 )........ N. hsientienensis

3. Coloration black-brown; antennae relatively long (reaching segment 4); calluses delimited by a sulcus both dorsally and ventrally; metatergal transverse sulcus on segments 4–19, reaching base of paraterga 5, 7–18; gonopod lamella (l) divided, without denticulation at margin; telopodite tip with only one lobe, bearing up to three lobules ( Figures 19–21 , 103–105 )......... N. pectinatus

– Coloration light brown; antennae short (reaching segment 2); calluses delimited by a sulcus only dorsally; metatergal transverse sulcus on segments 5–18, not reaching base of paraterga; gonopod lamella (l) not divided, margin denticulate; telopodite tip with more than one lobe............. 4

4. Epiproct long and widely bifid ( Figures 25 , 77 ); pleurosternal carinae on segments 2–4 to segments 2–7, with caudal teeth on segments 5–7; two sternal cones between „ coxae 4 ( Figures 27 , 80 ); solenophore with three apical lobes ( Figures 29–31 , 109, 110, 114 )............ N. caudatus

– Epiproct short and narrowly emarginate ( Figures 45 , 93, 94 ); pleurosternal carinae on segments 2–7; a narrowly notched, linguiform, sternal lamina between „ coxae 4 ( Figures 47 , 96 ); solenophore with four apical lobes ( Figures 49–52 , 121, 122, 126 )..................... N. wui

Figures

Figures 1–10. Nedyopus hsientienensis (Wang, 1957), male from CingShan. (1) Anterior body portion, lateral view. (2) Segment 10, lateral view. (3) Left half of metatergum 10, dorsal view. (4) Epiproct, dorsal view. (5) Hypoproct, ventral view. (6) Sternal lobe between coxae 4, ventral view. (7) Leg 16. (8–10) Left gonopod, medial, lateral, and dorsal views, respectively. ca, cannula; cal, callus; co, coxite; fe, femorite; pfe, prefemoral part; sg, seminal groove; sm, solenomere; sph, solenophore; l, l9, l0, A, B, lobes of solenophore; m, lobe at base of solenomere. Scale bar: 1.0 mm (1–3); 0.3 mm (4–10).

Figures 32–41. Nedyopus latus n. sp., male paratype from SiiTou. (32) Anterior body portion, lateral view. (33) Segment 10, lateral view. (34) Left half of metatergum 10, dorsal view. (35) Epiproct, dorsal view. (36) Hypoproct, ventral view. (37) Sternal cones between coxae 4, ventral view. (38) Leg 14. (39–41) Left gonopod, medial, lateral, and dorsal views, respectively. sph, solenophore; l, A, B, C, lobes of solenophore; m, lobe at base of solenomere. Scale bars: 1.0 mm (32–34); 0.5 mm (35–38); 0.3 mm (39–41).

Figures 53–61. Nedyopus hsientienensis (Wang, 1957), male from CingShan. (53) Entire body, dorsal view. (54) Anterior body portion, lateral view. (55, 56) Segment 10 (S 10), dorsal and lateral views, respectively. (57, 58) Epiproct, lateral and dorsal views, respectively. (59) Hypoproct, ventral view. (60) Sternal lobe between coxae 4, ventral view. (61) Tarsal brush of right leg 4. Scale bars: 0.4 mm (54–56); 0.3 mm (57); 0.7 mm (58); 0.2 mm (59, 60); 0.2 mm (61).

Figures 81–88. Nedyopus latus n. sp., male paratype from SiiTou. (81) Entire body, dorsal view. (82) Anterior body portion, lateral view. (83, 84) Segment 10 (S 10), dorsal and lateral views, respectively. (85, 86) Epiproct, dorsal and lateral views, respectively. (87) Hypoproct, ventral view. (88) Sternal cones between coxae 4, ventral view. Scale bars: 0.8 mm (82); 1 mm (83); 0.7 mm (84–86); 0.3 mm (87); 0.2 mm (88).

Figures 11–21. Nedyopus pectinatus (Wang, 1957), male near-topotype from SihLeng (11–16, 18–21) and male from HueiSun Farm (17). (11) Anterior body portion, lateral view. (12) Segment 10, lateral view. (13) Left half of metatergum 10, dorsal view. (14) Epiproct, dorsal view. (15) Hypoproct, ventral view. (16, 17) Sternal lobe between coxae 4, ventral view. (18) Leg 15. (19–21) Left gonopod, medial, lateral, and dorsal views, respectively. sph, solenophore; l9, l0, lobes of solenophore; m, lobe at base of solenomere. Scale bars: 1.0 mm (11–13); 0.5 mm (14–18); 0.3 mm (19–21).

Figures 22–31. Nedyopus caudatus n. sp., male paratype from Syuan. (22) Anterior body portion, lateral view. (23) Segment 12, lateral view. (24) Left half of metatergum 12, dorsal view. (25) Epiproct, dorsal view. (26) Hypoproct, ventral view. (27) Sternal cones between coxae 4, ventral view. (28) Leg 19. (29–31) Left gonopod, medial, ventral, and lateral views, respectively. sph, solenophore; l, A, B, C, lobes of solenophore; m, lobe at base of solenomere. Scale bar: 1.0 mm (22–24); 0.5 mm (25–28); 0.25 mm (29–31).

Figures 42–52. Nedyopus wui n. sp., male paratype from Syuan. (42) Anterior body portion, lateral view. (43) Segment 10, lateral view. (44) Left half of metatergum 10, dorsal view. (45) Epiproct, dorsal view. (46) Hypoproct, ventral view. (47) Sternal structures between coxae 4 and 5, ventral view. (48) Leg 13. (49–52) Left gonopod, medial, lateral, ventral, and dorsal views, respectively. sph, solenophore; A, B, C, D, lobes of solenophore; m, lobe at base of solenomere. Scale bar: 1.0 mm (42–44); 0.5 mm (45–48); 0.2 mm (49–52).

Figures 62–72. Nedyopus pectinatus (Wang, 1957), male near-topotype from SihLeng (62, 64, 65, 67–70, 72) and male from FengHuangGu (63), and HueiSun Farm (66, 71). (62, 63) Entire body, dorsal view. (64) Anterior body

Figures 73–80. Nedyopus caudatus n. sp., male paratype from HueiSun Farm. (73) Entire body, dorsal view. (74) Anterior body portion, lateral view. (75, 76) Segment 10 (S 10), dorsal and lateral views, respectively. (77, 78) Epiproct, dorsal and lateral views, respectively. (79) Hypoproct, ventral view. (80) Sternal cones between coxae 4, ventral view. Scale bars: 0.5 mm (74, 76); 0.4 mm (75, 77, 78); 0.2 mm (79, 80).

Figures 89–96. Nedyopus wui n. sp., male paratype from HuaGer water source. (89) Entire body, dorsal view. (90) Anterior body portion, lateral view. (91, 92) Segment 10 (S 10), dorsal and lateral views, respectively. (93, 94) Epiproct, dorsal and lateral views, respectively. (95) Hypoproct, ventral view. (96) Sternal structures between coxae 4, ventral view. Scale bars: 0.4 mm (90); 0.5 mm (91, 92, 94); 0.3 mm (93, 95, 96).

Figures 115–120. Nedyopus latus n. sp., male paratype from SiiTou, left gonopod. (115, 118, 119) Entire, medial, lateral, and dorsal views, respectively. (116, 117, 120) Telopodite tip, medial, ventral, and dorsal views, respectively. sph, solenophore; l, A, B, C, lobes of solenophore; m, lobe at base of solenomere. Scale bars: 1.0 mm (115, 119); 500 Mm (117, 118); 200 Mm (116, 120).

Figures 97–102. Nedyopus hsientienensis (Wang, 1957), male from CingShan, right gonopod. (97, 100) Entire, medial and lateral views, respectively. (98, 99, 101, 102) Telopodite tip, medial, ventral, lateral and dorsal views, respectively. sph, solenophore; l, A, B, lobes of solenophore; m, lobe at base of solenomere. Scale bars: 500 Mm (97, 100); 200 Mm (98, 99, 101, 102).

Figures 103–108. Nedyopus pectinatus (Wang, 1957), male from FengHuangGu, left gonopod. (103, 106) Entire, medial and lateral views, respectively. (104, 105, 107, 108) Telopodite tip, medial, ventral, lateral, and dorsal views, respectively. sph, solenophore; l, A, B, D, lobes of solenophore; m, lobe at base of solenomere. Scale bars: 500 Mm (103, 106); 200 Mm (104, 105, 107, 108).

Figures 109–114. Nedyopus caudatus n. sp., male paratype from HueiSun Farm, left gonopod. (109, 112, 114) Entire, medial, lateral, and dorsal views, respectively. (110, 111, 113) Telopodite tip, medial, ventral, and lateral views, respectively. sph, solenophore; l, A, B, lobes of solenophore; m, lobe at base of solenomere. Scale bars: 500 Mm (109, 112, 114); 200 Mm (110, 111, 113).

Figures 121–126. Nedyopus wui n. sp., male paratype from Syuan, left gonopod. (121, 124) Entire, medial and lateral views, respectively. (122) Telopodite tip, medial, ventral, lateral, and dorsal views, respectively. sph, solenophore; A, B, C, D, lobes of solenophore; m, lobe at base of solenomere. Scale bars: 500 Mm (121, 124); 200 Mm (122, 123, 125, 126).