Cladistic analysis and description of a new species of the Brazilian genus Atlantodesmus Hoffman, 2000 (Diplopoda: Polydesmida: Chelodesmidae) Author Bouzan, Rodrigo Salvador 14A15A7F-730F-4D41-BDAC-D53514FAB85D Pós-graduação em Zoologia, Instituto de Biociências, Universidade de São Paulo, São Paulo, Brasil. & Laboratório Especial de Coleções Zoológicas, Instituto Butantan, Avenida Vital Brasil, 1500, 05503 - 090, São Paulo, Brasil. rodrigobouzan@outlook.com Author Iniesta, Luiz Felipe Moretti DEEF048E-97FB-4CCD-875F-5FA6184CA8AB Pós-graduação em Zoologia, Instituto de Biociências, Universidade de São Paulo, São Paulo, Brasil. & Laboratório Especial de Coleções Zoológicas, Instituto Butantan, Avenida Vital Brasil, 1500, 05503 - 090, São Paulo, Brasil. luiz-moretti@hotmail.com Author Brescovit, Antonio Domingos D5B81D79-AFAE-47B1-8A6E-DAB448A24BCC Laboratório Especial de Coleções Zoológicas, Instituto Butantan, Avenida Vital Brasil, 1500, 05503 - 090, São Paulo, Brasil. adbresc@terra.com.br text European Journal of Taxonomy 2019 2019-07-19 538 1 17 journal article 10.5852/ejt.2019.538 970b91ef-477c-47a6-bdb0-a1b6c09de383 2118-9773 3346493 92D114FF-94FC-49A0-A83A-08B4E5BF1B3E Genus Atlantodesmus Hoffman, 2000 Atlantodesmus Hoffman, 2000: 102 . Type species: Leptodesmus eimeri Attems, 1898 , by original designation. Iemanja Hoffman, 2000: 106 . Type species: I. teresa Hoffman, 2000 , by original designation. Synonymized by Bouzan et al . 2017: 271 . Diagnosis Modified from Bouzan et al. (2017) : males of Atlantodesmus differ from other chelodesmid genera by the combination of the following characters: absence of ventral projections on the sternites (except A. itapurensis and A. teresa , which have a pair of projections on the fourth sternite; Fig. 5C ); presence of folds on the dorsal edge of the prefemoral region of the gonopod ( Fig. 6B ), except A. pickeli ; presence of a cingulum ( Fig. 2 E−F); acropodite branching, forming a long, thin, falciform solenomere, and a large acropodite process with a broadened apical region overreaching the tip of the solenomere ( Fig. 2 C−F). Distribution Occurring in the Atlantic rain forest (states of Paraná , Santa Catarina , São Paulo , Minas Gerais , Espírito Santo and Bahia ) and in the Cerrado (states of São Paulo , Mato Grosso do Sul and Minas Gerais ) areas of Brazil . See map in Bouzan et al. (2017) . Composition Six species: Atlantodesmus eimeri ( Attems, 1898 ) , A. itapurensis (Schubart, 1943) , A. pickeli (Schubart, 1946) , A. pintoi (Schubart, 1946) , A. teresa (Hoffman, 2000) and A. sierwaldae sp. nov. Fig. 1. Strict consensus of the two most parsimonious trees obtained with implied weighting of the characters (k = 3) (length = 58 steps; total fit = 23.150; CI = 0.64; RI = 0.64). Black circles correspond to unique transformations and white circles to homoplastic transformations. Values below branches refer to the GC values (Symmetric Resampling) and relative Bremer support. Only unambiguous changes are shown in this topology. Key to the males of Atlantodesmus 1. Body coloration concolorous to paranota edge ................................................................................ 2 – Coloration at paranota edge lighter ................................................................................................... 3 2. Tubercles present on dorsal surface of metazonites ................................... A. eimeri ( Attems, 1898 ) – Tubercles absent on dorsal surface of metazonites ................................... A. teresa (Hoffman, 2000) 3. Median stripe on metazonite present ........................................................ A. pintoi (Schubart, 1946) – Median stripe on metazonite absent ................................................................................................. 4 4. Prefemoral process serrated distally ................................................................................................. 5 – Prefemoral process unserrated distally ............................................................ A. sierwaldae sp. nov. 5. Prefemoral process densely serrated distally ........................................... A. pickeli (Schubart, 1946) – Prefemoral process slightly serrated distally .................................... A. itapurensis (Schubart, 1943)