The first palpimanid spiders from Bolivia: two new species of the genus Otiothops MacLeay, and the female of Fernandezina pulchra Birabén (Araneae: Palpimanidae: Otiothopinae) Author Piacentini, Luis N. Author Ávila Calero, Sergio L. Author Pérez, Marianela E. Author Grismado, Cristian J. text Zootaxa 2013 3619 4 491 500 journal article 10.11646/zootaxa.3619.4.6 5599ff17-60b9-4654-b76b-231aa81281a9 1175-5326 216623 11CC1FA2-A09A-4ED9-89E3-3706ABE2A091 Fernandezina pulchra Birabén, 1951 ( Figs 5–6 ) Fernandezina pulchra Birabén, 1951: 546 , figs 1–3 (male holotype from Laguna Yema, Formosa , Argentina , deposited in MACN-Ar, examined). Zapfe, 1961: 141. Platnick et al. 1999: 10. Other material examined. Bolivia : Santa Cruz : 1 male , Concesión Forestal La Chonta, Prov. Guarayos, 15°42'42"s , 62°46'20"W , 26–30 October 2010 , Amazonian forest with selective logging, pitfall trap, elev. 330 m , C. Grismado, M. R. Vacaflores, M. Pérez (CBF); 1 female , same data except Berlese trap (MACN-Ar 28903); 1 juvenile , same data except sifting litter (MACN-Ar 28902). Diagnosis. The female resembles that of F. dasilvai Platnick, Grismado & Ramírez, 1999 in the dorsal chevron pattern on the abdomen ( Figs 5 a–c), but differs by lacking claw tufts and by the genitalia, which have anteriorly directed median receptacula and a less extended posterior extension of the bursa ( Fig. 6 b). Description. Female (MACN-Ar 28903): Total length 2.76. Carapace 1.28 long, 0.84 wide. Femur I 1.20 long, 0.30 high. Posterior median eyes separated by more than their diameter ( Fig 5 a). Paturon with inconspicuous lateral ridge. Sclerotized portions of body orange brown ( Figs 5 a–c); abdominal scutum orange, with lateroventral notches where two oblique, elongated ventral plates fit, converging posteriorly toward middle of venter, but not touching ( Fig. 6 a). Unsclerotized portion of dorsum with about six dark brown, transverse paired chevrons on yellowish background ( Figs 5 a–c), last three connected at middle ( Fig. 5 a); venter uniformly yellowish, more posterior chevrons extending partially near spinnerets ( Fig. 5 c). Tarsi II-IV without claw tufts. Internal genitalia ( Fig. 6 b) with paired median receptacula, with nearly squared proximal part, anteriorly directed, rounded, distal part; poreplates situated on anterior wall of the proximal part of each receptaculum (PP in Fig. 6 b). Posterior extension of bursa (PE) not extended posteriorly; uterus externus not visible. Male. See Birabén (1951) and Platnick et al . (1999). Note. Although Platnick et al. (1999) reported that the abdomen of the type specimen of F. pu lc h r a lacked chevrons, the fresh specimen here obtained clearly shows the abdominal markings ( Figs 5 d–f). The current pale, uniform, color of the holotype seems to be a consequence of preservation conditions, given that Birabén (1951: 549) mentioned the chevrons (“…por detrás del escudo hay cuatro bandas irregulares más oscuras que convergen hacia la línea mediana; la banda más anterior es en parte cubierta por el borde posterior del escudo dorsal” [behind the scutum there are four irregular, darker bands converging towards the median line; the anterior band is partly covered by the posterior edge of dorsal scutum]). The palp of the Bolivian specimen ( Figs 6 c–e) was compared with the holotype and shows no significant differences. Distribution. Formosa ( Argentina ) and Santa Cruz ( Bolivia ).