A revision of the Thyropygus allevatus group. Part 3: the T. induratus subgroup (Diplopoda: Spirostreptida: Harpagophoridae) Author Pimvichai, Piyatida Author Enghoff, Henrik Author Panha, Somsak text Zootaxa 2011 2941 47 68 journal article 46474 10.5281/zenodo.202425 2bca7cc9-7396-41e7-947b-11c9a8b0d0e7 1175-5326 202425 Thyropygus quietus Attems, 1938 ( Figs. 2 A–D) Thyropygus quietus Attems, 1938 : 285 Thyropisthus quietus : Attems 1942 : 87 Thyropygus allevatus quietus : Hoffman 1975 : 136 NOT Thyropisthus quietus : Demange 1961 NOT Thyropygus quietus : Decker 2010 Material examined. 2 males SYNTYPES , VIETNAM (S-Annam), Nhatrang, leg. C. Dawydoff 1936 ( NMW 2573). 2 males VIETNAM , Ba Ria-Vung Tau province, Con Dao National Park. June 2010 . Nguyen Hun Thuc leg., ( CUMZ ). Diagnosis. A species of the induratus subgroup. Differing from all other species (except T. induratus ) in the subgroup by having two processes of anterior coxal fold ( ac ), the outer forming a slender, sharp spine, the inner broadly rounded, flexible and by a very thick ac laterally. Differs from T. induratus by being much smaller and by having lower paracoxites ( px ). Description. Adult males with 56–61 podous rings, no apodous rings. Length 9–11 cm , width 5.6–6.5 mm . Color in life unknown; preserved specimens with antennae, legs, metazona, epiproct, hypoproct, paraprocts dark brown; prozona brown. Gonopods ( Figs. 2 A–D) as in T. induratus , except for the paraxocites ( px ) which are lower. Discussion. see under T. induratus .