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 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. luiz-moretti@hotmail.com Author Bouzan, Rodrigo Salvador 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 D5B81D79-AFAE-47B1-8A6E-DAB448A24BCC Laboratório de Coleções Zoológicas, Instituto Butantan, Avenida Vital Brasil, 1500, 05503 - 090, São Paulo, Brazil. 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 10.5852/ejt.2023.867.2109 1d2570da-e150-4d75-94d8-bfc5813062bc 2118-9773 7891021 8DEF295C-A8B1-4A6B-B873-B30949F64E07 Pseudonannolene alata sp. nov. urn:lsid:zoobank.org:act: C18F0776-3DA0-4571-91C9-0584F601B97F Figs 145–146 , 163C , 165C , 175B , 179K , 190 ; Supp. file 4: Fig. 215B Diagnosis Males of P. alata sp. nov. can be distinguished from those of all other species of Pseudonannolene by having a large, rounded projection on the telopodite ( Fig. 146D ). Etymology The species epithet is derived from the Latin adjective ‘ alata ’ = ‘winged’, in reference to the ectal projection on the telopodite. Material examined Holotype BRAZIL • ♂ ; Santa Catarina , Florianópolis , Ilha do Arvoredo ; [ -27.281906 , -48.366245 ]; 130 m a.s.l. ; 15 May 2018 ; R.S. Bouzan leg.; IBSP 7874 . Paratype (total: 1 ♀ ) BRAZIL • 1 ♀ ; same collection data as for holotype; IBSP 7875 . Referred non-type material (total: 5 ♂♂ , 12 ♀♀ ; 5 immatures ) BRAZIL – Santa Catarina • 6 ♀♀ , 5 immatures ; Florianópolis , Ilha do Arvoredo ; [ -27.281094 , -48.366610 ]; 130 m a.s.l. ; 15 May 2018 ; R.S. Bouzan leg.; IBSP 7876 • 4 ♀♀ ; same collection data as for preceding; IBSP 7877 • 2 ♀♀ ; same collection data as for preceding; IBSP 7878 • 5 ♂♂ ; same collection data as for preceding; IBSP 7879 . Description MEASUREMENTS . 53–55 body rings (1–2 apodous + telson). Males: body length 43.8–64.8 mm ; maximum midbody diameter 3.2–4.5 mm . Females: body length 56.5–72.2 mm ; maximum midbody diameter 4–5.4 mm . COLOR . Body color brownish grey; head and collum darker; prozonites anteriorly greyish; metazonites with a medial band darker and a posterior reddish; antennae and legs reddish. HEAD . Antennae short ( Fig. 163C ), just reaching back to end of ring 5 when extended dorsally; relative antennomere lengths 1<2<3>4≈5≈6>7. Mandibular cardo with ventral margin narrow. Ommatidial cluster well-developed, elliptical; ca 40 ommatidia in 6 rows. BODY RINGS . Collum with lateral lobes rounded, with ca 6 deep striae, strongly curved ectad ( Fig. 145A ). Very faintly constricted between prozonite and metazonite; prozonites smooth; metazonites laterally with transverse striae below ozopore. Anterior sterna in midbody rings subrectangular, without transverse striae ( Fig. 175B ). FIRST LEG-PAIR OF MALES . Coxae ( cx ) elongated (as long as the sum of remaining podomere lengths), subtriangular, with the base slightly arched and expanded, densely setose mainly on distal region ( Fig. 146A ); prefemoral process ( prf ) as wide as half of prefemur, subcylindrical, densely setose along in its entire extension ( Fig. 146B ); remaining podomeres with setae along the mesal region. SECOND LEG-PAIR OF MALES . Coxa ( cx ) large and subrectangular; penis ( pn ) located at proximal region, rounded, not extended basally ( Fig. 146C ); prefemur compressed dorsoventrally; remaining podomeres setose. GONOPODS . Gonocoxa ( gcx ) elongated, almost twice as long as telopodite, with the base slightly arched; antero-posteriorly flattened ( Fig. 146D–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 ) inconspicuous. Telopodite ( tp ) almost as wide as gcx ( Figs 146D , 215B ), with large and rounded laterad projection; solenomere ( sl ) expanded laterad, rounded, with apicomesal process ( amp ) subtriangular; ectal process absent; sa located at mesal portion, visible apically. Internal branch ( ib ) subtriangular, narrow, surrounding basally tp as a shield; ib with setae along its entire margin nearly exceeding apically seminal region of sl ( Fig. 146D–F ). VULVAE . As typical for the genus. Bursa subtriangular, glabrous ( Fig. 179K ); internal valve subtriangular, mesally rounded; operculum narrow, curved ectad, slightly compressed basally; external valve subtriangular. Distribution Known only from the type locality Ilha do Arvoredo, Florianópolis, Santa Catarina State , Brazil ( Fig. 190 ).