A reassessment of the Neotropical genus Pseudonannolene Silvestri, 1895: cladistic analysis, biogeography, and taxonomic review (Spirostreptida: Pseudonannolenidae) Author Iniesta, Luiz Felipe Moretti DEEF048E-97FB-4CCD-875F-5FA6184CA8AB&14A15A7F-730F-4D41-BDAC-D53514FAB85D Pós-graduação em Zoologia, Instituto de Biociências, Universidade de São Paulo, São Paulo, Brazil. & Laboratório de Coleções Zoológicas, Instituto Butantan, Avenida Vital Brasil, 1500, 05503 - 090, São Paulo, Brazil. rodrigobouzan@outlook.com Author Bouzan, Rodrigo Salvador DEEF048E-97FB-4CCD-875F-5FA6184CA8AB&14A15A7F-730F-4D41-BDAC-D53514FAB85D Pós-graduação em Zoologia, Instituto de Biociências, Universidade de São Paulo, São Paulo, Brazil. & Laboratório de Coleções Zoológicas, Instituto Butantan, Avenida Vital Brasil, 1500, 05503 - 090, São Paulo, Brazil. rodrigobouzan@outlook.com Author Brescovit, Antonio Domingos 14A15A7F-730F-4D41-BDAC-D53514FAB85D&D5B81D79-AFAE-47B1-8A6E-DAB448A24BCC Laboratório de Coleções Zoológicas, Instituto Butantan, Avenida Vital Brasil, 1500, 05503 - 090, São Paulo, Brazil. rodrigobouzan@outlook.com&antonio.brescovit@butantan.gov.br text European Journal of Taxonomy 2023 2023-04-27 867 1 1 312 http://dx.doi.org/10.5852/ejt.2023.867.2109 journal article 57602 10.5852/ejt.2023.867.2109 1d2570da-e150-4d75-94d8-bfc5813062bc 2118-9773 7891021 8DEF295C-A8B1-4A6B-B873-B30949F64E07 Pseudonannolene mesai Fontanetti, 2000 Figs 11 , 93– 94 , 163N , 166A , 170D , 178C , 185 Pseudonannolene mesai Fontanetti, 2000: 188 , figs 1–7. Pseudonannolene mesai – Iniesta & Ferreira 2013b: 366 ; 2013c: 78 . Diagnosis Males of P. mesai resemble those of P. curvata sp. nov. , P. erikae , and P. bucculenta sp. nov. by having a mesally curving telopodite, but differing from those species by a larger trunk of the telopodite, projected laterad ( Fig. 94D ). Etymology Patronym honoring the collector A. Mesa ( Fontanetti 2000 ). Material examined Holotype BRAZIL • ♂ ; São Paulo , Salesópolis , Estação Biológica de Boracéia ; [ -23.633126 , -45.882183 ]; 943 m a.s.l. ; Apr. 1984 ; C.S. Fontanetti leg.; MZSP . Paratypes (total: 1 ♂, 1 ♀ , 1 immature) BRAZIL – São Paulo • 1 ♂, 1 ♀, 1 ♂ immature ; same collection data as for holotype; Nov. 1990 ; A. Mesa and J.A. Diniz-Filho leg.; MZSP . Other material (total: 2 ♂♂ , 7 ♀♀ , 8 immatures ) BRAZIL – São Paulo • 1 ♂ ; Salesópolis , Estação Biológica de Boracéia ; [ -23.633126 , -45.882183 ]; 943 m a.s.l. ; May 2001 ; Equipe Biota leg.; IBSP • 1 ♀ immature; same collection data as for preceding; IBSP 1890 • 1 ♂ ; same collection data as for preceding; IBSP 816 • 2 ♀♀ ; Cotia , Reserva Florestal do Morro Grande ; [ -23.603506 , -46.919463 ]; 798 m a.s.l. ; 13–30 Jun. 2002 ; Equipe Biota leg.; IBSP 2041 • 1 ♂ ; same collection data as for preceding; IBSP 2039 • 1 ♀ ; same collection data as for preceding; IBSP 2042 . Descriptive notes MEASUREMENTS . 54–60 body rings (1–2 apodous + telson). Males: body length 60.8–61.8 mm ; maximum midbody diameter 3.1–3.6 mm . Females: body length 71.6–81.4 mm ; maximum midbody diameter 4.6–4.8 mm . COLOR . Body color brownish grey; head, collum, antennae and legs brownish darker; prozonites anteriorly greyish; metazonites with a medial brown band and a posterior lighter. HEAD . Antennae long ( Fig. 163N ), just reaching back to end of ring 6 when extended dorsally; antennomeres elongated; relative antennomere lengths 1<2<3>4>5≈6>7. Mandibular cardo with ventral margin narrow. Ommatidial cluster well-developed, elliptical; ca 33 ommatidia in 5 rows. BODY RINGS . Collum with lateral lobes rounded, with ca 9 striae, slightly curved ectad ( Fig. 93A ). Very faintly constricted between prozonite and metazonite; prozonites smooth; metazonites laterally with transverse striae below ozopore. Anterior sterna in midbody rings subrectangular, with 7 transverse striae ( Fig. 170D ). FIRST LEG-PAIR OF MALES . Coxae ( cx ) short (less than half of remaining podomere lengths), subtriangular, with the base arched, densely setose mainly on distal region ( Fig. 94A ); prefemoral process ( prf ) as wide as half of prefemur, subcylindrical, densely setose up to its median region ( Fig. 94B ); remaining podomeres with setae along the mesal region. SECOND LEG-PAIR OF MALES . Coxa ( cx ) large and rounded; penis ( pn ) located at proximal region, rounded, not extended basally ( Fig. 94C ); prefemur compressed dorsoventrally; remaining podomeres setose. GONOPODS . Gonocoxa ( gcx ) rounded and elongated, almost twice as long as telopodite, with the base arched; antero-posteriorly slightly flattened ( Fig.94D–F ); with rows of papillae mesally. Seminal groove ( sg ) curved; arising medially on mesal cavity and terminating apically on the seminal apophysis ( sa ). Shoulder ( sh ) inconspicous. Telopodite ( tp ) large, strongly curved mesad, projected laterad ( Fig. 94D ); solenomere ( sl ) with small squamous region; apicomesal process ( amp ) subtriangular; ectal process absent; sa located at mesal portion, slightly visible apically. Internal branch ( ib ) short and narrow, subtriangular, surrounding basally tp as a shield; ib with setae along its entire margin exceeding apically seminal region of sl ( Fig. 94D–F ). VULVAE . As typical for the genus. Bursa subtriangular, glabrous ( Fig. 178C ); internal valve subtriangular, with mesal region rounded; operculum narrow; external valve wide, subtriangular. Distribution The species occurs in the Atlantic Forest from the coastal region of São Paulo State , Brazil ( Fig. 185 ).