On the Neotropical species of the spider genus Tekellina Levi, 1957 (Arachnida: Araneae: Synotaxidae) Author Estol, Narelle 771C500B-55F5-4548-A52B-55DFDF2739BA Laboratório de Genética e Biologia Molecular. Universidade do Vale do Rio dos Sinos, Av. Unisinos, 950, 93022 - 000 São Leopoldo, Rio Grande do Sul, Brazil. narelle.estol@gmail.com Author Valiati, Victor Hugo D9ABBF74-7B6F-4D0C-8446-27DD8AF7C6BA Laboratório de Genética e Biologia Molecular. Universidade do Vale do Rio dos Sinos, Av. Unisinos, 950, 93022 - 000 São Leopoldo, Rio Grande do Sul, Brazil. valiati@unisinos.br Author Brescovit, Antonio D. D5B81D79-AFAE-47B1-8A6E-DAB448A24BCC Laboratório de Coleções Zoológicas, Instituto Butantan, Av. Vital Brazil, 1500, Butantã, 05503 - 900 São Paulo, São Paulo, Brazil. antonio.brescovit@butantan.gov.br Author Rodrigues, Everton Nei Lopes 9288C215-D60B-431E-86EA-541066F82169 Universidade Estadual Paulista “ Júlio de Mesquita Filho ” (UNESP), Departamento de Morfologia e Fisiologia Animal, Via de Acesso Prof. Paulo Donato Castellane km 05, 14884 - 900 Jaboticabal, São Paulo, Brazil. enl.rodrigues@unesp.br text European Journal of Taxonomy 2024 2024-07-05 943 154 178 https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/2593/11825 journal article 10.5852/ejt.2024.943.2593 2118-9773 12707422 D084D207-A983-4719-91D6-C97F37071532 Tekellina picurrucha Rodrigues & Estol sp. nov. urn:lsid:zoobank.org:act: 6E100DED-F2C5-4CDC-8002-F2C1C1C99146 Figs 6A–C , 9A–C , 10 Diagnosis Males of Tekellina picurrucha Rodrigues & Estol sp. nov. resemble those of T. helixicis (see Gao & Li 2014: fig. 72) by the terminal claw of the straight conductor, but differ by the shape of the cymbium and terminal claw closer to the apical part of cymbium ( Fig. 6A–B ). Females of Tekellina picurrucha resemble those of T. miuda Rodrigues & Estol sp. nov. and T. miudinha Rodrigues & Estol sp. nov. by the receptacles around the copulatory ducts, but differ by the course of the copulatory ducts not reaching the apical part of the receptacles and the receptacles close to each other ( Fig. 6C ). Etymology The specific epithet is derived from a popular Brazilian Portuguese expression and refers to its small size. Type material Holotype BRAZIL – Rio Grande do Sul • ♂ ; Porto Alegre , Ilha dos Marinheiros ; 29°58′ S , 51°14′ W ; 10 Aug. 1999 ; A.B. Bonaldo leg.; MCN 31476. Fig. 6. A–C . Tekellina picurrucha Rodrigues & Estol sp. nov. , ♂ (MCN 31476) and ♀ (IBSP 50834). A . Male palp, ventral view. B . ♂, palp, retrolateral view. C . ♀, epigynum, ventral view. D–E . T. miuda Rodrigues & Estol sp. nov. , ♂ (MCN 48872) and ♀ (MCN 48871). D . ♂, palp, ventral view. E . ♂, palp, retrolateral view. F . ♀, epigynum, ventral view. G . T. miudinha Rodrigues & Estol sp. nov. , ♀, holotype (MCN 48870), epigynum, ventral view. Scale bars = 0.25 mm. Abbreviations: see Material and methods. Fig. 7. Tekellina guaiba Marques & Buckup, 1993 . A . ♂ (MCN 44159), palp, ventral view. B . ♂ (MCN 44159), palp, anterolateral view. C . ♂ (MCN 44159), paracymbium detail. D . ♂ (MCN 44159), mesal arm and conductor detail. E . ♂ (MCN 44159), terminal claw of conductor detail. F. ♂ (MCN 44159), chelicera, detail. Scale bars: A–B = 100 µm; C–F = 50 µm. Abbreviations: see Material and methods. Paratype BRAZIL – Rio Grande do Sul • 1 ♀ ; São Francisco de Paula ; 29°26′49″ S , 50°34′45″ W ; 2004; R. Baldissera leg.; IBSP 50834 . Other material examined BRAZIL – Paraná • 1 ♀ ; Antonina, Reserva Natural do Rio da Cachoeira ; 25°25′44″ S , 48°42′43″ W ; 23 Sep. 2005 ; E. Álvares leg.; MCN 45115 . – Rio Grande do Sul • 1 ♂ , 1 ♀ ; Santo Antônio da Patrulha , Fazenda Paulo Lompra ; 29°50′18″ S , 50°30′58″ W ; 2 Jun. 2000 ; A.B. Bonaldo leg.; MCN 32644 • 2 ♂♂ , 2 ♀♀ ; Porto Alegre , Ilha Grande dos Marinheiros ; 30°01′58″ S , 51°13′48″ W ; 8 Aug. 1999 ; A.B. Bonaldo leg.; MCN 31352 • 2 ♂♂ , 1 ♀ ; same data as for preceding; MCN 31476 • 1 ♂ , 1 ♀ ; Maquiné , Fepagro ; 29°54′ S , 50°19′ W ; Equipe Biota leg.; IBSP 50822 • 1 ♂ , 1 ♀ ; Pelotas , Passo da Micaela ; 31°46′34″ S , 52°21′34″ W ; 1–3 May 1997 ; L.A. Moura leg.; MCN 28447 . – São Paulo • 1 ♀ ; Mogi das Cruzes , Parque Natural Municipal do Itapety ; 23°29′ S , 46°12′ W ; 13–19 Oct. 2003 ; Equipe Biota leg.; MCN 48799 • 1 ♂ ; Guarulhos , Parque Estadual da Cantareira , Núcleo Cabuçu ; 23°24′5″ S , 46°35′24″ W ; 16–22 Aug. 2001 ; Equipe Biota leg.; IBSP 166 • 1 ♀ ; São José do Barreiro , Parque Nacional da Serra da Bocaina ; 12°40′ 23°20′ S , 44°24′– 44°54′ W ; 28. Apr.–3 May 2002 ; Equipe Biota leg.; IBSP 50821 • 1 ♀ ; Itirapina , Estação Ecológica de Itirapina ; 22º15′10″ S , 47º49′22″ W ; Equipe Biota leg.; IBSP 50172 . ARGENTINA – Misiones • 1 ♀ ; San Javier ; 27°52′17″ S , 55°08′17″ W ; 1989; MCTP 573 . Description Male ( holotype , MCN 31476) Carapace ( Fig. 9A ) oval, yellow with brown dots medially. No teeth in chelicera. Eye region higher, subequal eyes,AME bigger with darker rings around. Legs light yellow with light brown spots.Abdomen ( Fig. 9A ) oval in dorsal view, subtriangular in lateral view ( Fig. 9B ), higher than wide, light brown with lighter spots. Total length 1.24. Carapace length 0.44, width 0.42. Abdomen length 0.65, width 1.05, height 0.66. Legs I 2.05 (femur 0.65 + patella and tibia 0.72+ tarsus 0.46 + metatarsus 0.22); II 1.3 (0.45 + 0.40 + 0.23 + 0.22); III 1.4 (0.48 + 0.45 + 0.26 + 0.21); IV 1.7 (0.63 + 0.48 + 0.34 + 0.25). Legs formula: 1432. Male palpus with paracymbium not enlarged retrolaterally ( Fig. 6A–B ). Embolus filamentous and coiling. Mesal arm with sharp apex and terminal claw-like arm directed clockwise ( Fig. 6A ). Female ( paratype , IBSP 50834) Color pattern and abdomen like that of male ( Fig. 9C ). Total length 1.35. Carapace length 0.63, width 0.42. Abdomen length 0.84, width 1.17, height 0.7. Legs I 2.08 (femur 0.66 + patella and tibia 0.72 + tarsus 0.46 + metatarsus 0.24) II 1.5 (0.45 + 0.42 + 0.23 + 0.22); III 1.6 (0.48 + 0.45 + 0.27 + 0.22); IV 1.9 (0.64 + 0.48 + 0.35 + 0.25). Legs formula: 1432. Epigynal plate wider than long, weakly sclerotized, light brown. Copulatory ducts long and spiral surrounding receptacle and fertilization ducts short. Receptacles closely together ( Fig. 6C ). Distribution Argentina (San Javier) and Brazil (states of São Paulo , Paraná and Rio Grande do Sul ) ( Fig. 10 ).