Four new species of the millipede genus Eutrichodesmus Silvestri, 1910 from Laos, including two with reduced ozopores (Diplopoda, Polydesmida, Haplodesmidae)

E. deporatus sp. n., SEM, male paratype from Cave Tham Pathok. A right antenna, lateral view (a1–a7 = antennomeres 1–7) B right mandible, general view (et = external tooth; it = internal tooth; pl = pectinate lamellae; ia = intermediate area; mp = molar plate) C paratergum 17 (p17) and 18 (p18), dorsal view D tip of gnathochilarium, ventral view E sternum 6, caudal view F limbus of metatergum 14, dorsal view G ozopore (o) on paratergum 17 H a seta (se) on metatergum 14, general view I stigmata (st), detail J stigmata of segment 17, subventral view K female paratype, vulvae, general view (op = operculum; b = bursa) L midbody leg, frontal view (fem = femur; ta = tarsus) M right gonopod, mesal view (dp = distofemoral process; pp = papillate process) N tip of right gonopod, mesal view (t1–2 = teeth 1–2).