New species of the Neotropical spider genus Celaetycheus Simon, 1897 (Araneae: Ctenidae) Author Polotow, Daniele Author Brescovit, Antonio D. text Zootaxa 2013 3637 2 139 157 journal article 10.11646/zootaxa.3637.2.5 b2195f9a-5bb1-41da-b537-32119d9ec2a4 1175-5326 217254 1B5343C3-0426-4014-9F12-E2346DDEEE08 Celaetycheus Simon, 1897 Celaetycheus Simon 1897: 114 –115 ( Type species by monotypy: Celaetycheus flavostriatus Simon, 1897 ); Lehtinen 1967: 378; Silva 2003: 24, 31; Polotow & Brescovit 2009: 13. Diagnosis. Males of Celaetycheus resemble those of Centroctenus Mello-Leitão, 1929 by the elongated palpal tibiae and short cymbium (see Brescovit 1996: figs 19–20), but can be distinguished from them by the presence of a cymbial retroventral process ( Fig. 4A ). Females of Celaetycheus resemble those of Centroctenus by the smooth median plate (see Brescovit 1996: figs 21–22), but can be distinguished by the short lateral spurs, with the tip below the median plate, and the spermathecae divided in two parts, with a round head and large and curved base and with the copulatory duct ending in the base of the spermathecae ( Fig. 4E ). Description. See Polotow & Brescovit (2009). Additional data: Small to medium sized ecribellate spiders. Total body length (males and females): 3.20–4.70 mm . Composition. Eleven species. Distribution. Endemic to the state of Bahia, northeast of Brazil ( Figs 15 A–C). Natural history. The species of Celaetycheus are nocturnal, fast running hunters, living in the leaf litter. The vegetation types at collection sites are Atlantic Forest, cocoa plantations and transition zone between Atlantic Forest and Caatinga Forest.