Ariadna boliviana Simon, 1907

Giroti, André Marsola & Brescovit, Antonio Domingos, 2018, The taxonomy of the American Ariadna Audouin (Araneae: Synspermiata: Segestriidae), Zootaxa 4400 (1), pp. 1-114 : 59-62

publication ID	https://doi.org/10.11646/zootaxa.4400.1.1
publication LSID	lsid:zoobank.org:pub:59CC08B8-5B13-42EC-943E-C930D7D0DD7F
DOI	https://doi.org/10.5281/zenodo.5987888
persistent identifier	https://treatment.plazi.org/id/039B87D1-FFDE-B127-169B-F8ACC3E8F81D
treatment provided by	Plazi (2018-03-26 10:44:03, last updated 2024-11-24 23:29:14)
scientific name	Ariadna boliviana Simon, 1907
status

Treatment

Ariadna boliviana Simon, 1907 View in CoL

Figures 3‒5 View FIGURE 3 View FIGURE4 View FIGURE 5 , 7‒8 View FIGURE 7 View FIGURE 8 , 10 View FIGURE 10 , 36‒37 View FIGURE 36 View FIGURE 37 , 71 View FIGURE 71

Ariadna boliviana Simon, 1907: 262 View in CoL (♀ lectotype and ♂ lectoparatype from Espíritu Santo, [16°55'S; 67°48'W], BoliVia, Garlepp leg., deposited in MNHNP-AR 14382 and 14383, respectively, designated by Beatty (1970), examined).— Petrunkevitch (1911: 130).— Beatty (1970: 477, figs 4, 6, 14, 51‒52, 54‒55).— World Spider Catalog (2018).

Ariadna dubia Mello-Leitão, 1917: 82 View in CoL (♀ holotype from Pinheiro (actually Piraí, Pinheiral [22°30'46"S, 44°00'03"W], Rio de Janeiro, Brazil, E. Brito leg., should be deposited in MNRJ 1452, lost).— Beatty (1970: 483, as nomem dubium).— Moreira et al. (2010: 61).— NEW SYNONYMY.

Synonymy. Mello-Leitão (1917) described A. dubia based in a dried and pinned specimen, with a deformed and seared abdomen. Beatty (1970), due to the unavailability of the holotype and the poor description of Mello-Leitão, treated it as nomem dubium. There are two species registered to the type-locality of A. dubia : Ariadna boliviana Simon, 1907 and Ariadna obscura ( Blackwall, 1858) . According to the macrosetae pattern presented by Mello-Leitão (1917) in A. dubia 's original description, the tibiae I‒II presents 2-2-2-2 pattern (vp1-0-1-0-1-0-1, vr1-0-1-0-1-0-1) and metatarsi I and II with seven pairs of macrosetae. This macrosetae pattern is consistent with the one from A. boliviana , and differs from A. obscura . Based in the characters presented by Mello-Leitão (1917), A. dubia is considered junior-synonymy of A. boliviana .

Additional material examined: SURINAME: Sipaliwini District: Upper Kaburi Creek [03°46'37"N; 56°01'40"W], 1♀, IX.1977, J.E.D. Milner leg. ( NHM) GoogleMaps ; BRAZIL: Pará State: Parauapebas, Gruta NIN8 N1-174 (6°01'28.5"S; 50°17'55.0"W), 4♀, 17.VII‒4.VIII.2014, Carste et al. leg. ( IBSP 193496‒193499 View Materials ) GoogleMaps ; Gruta NIN8 N1- 174 (6°01'29.1"S; 50°17'54.5"W), 2♀, 7‒28.I.2015, Carste et al. leg. ( IBSP 193502 View Materials ; 193503); Gruta NIN8 N1- 0 223 (6°01'39.8"S; 50°16'33.2"W), 1♀, 4.IX‒6.X.2014, Carste et al. leg. ( IBSP 193501 View Materials ) GoogleMaps ; Parauapebas, Gruta GEM-1786 (6°06'19"S; 50°08'21"W), 1♀1imm., 27.VIII.2010, R. A. Zampaulo leg. ( ISLA); Gruta GEM-1623 (6°07'06"S; 50°07'56"W), 1imm., 16.III.2011, M GoogleMaps . P. Oliveira leg. ( ISLA); Gruta GEM-1764 (6°07'58"S; 50°08'14"W), 1♀, 25.X.2010, M GoogleMaps . P. Oliveira leg. ( ISLA); Gruta GEM-1715 (6°07'59"S; 50°08'06"W), 1imm., 4.V.2011, M GoogleMaps . P. Oliveira leg. ( ISLA); Gruta GEM-1739, 1♀ 1imm., 5.V.2011, M . P. Oliveira leg. ( ISLA); Gruta GEM-1739, 1♀ 1imm., 31.X.2010, M . P. Oliveira leg. ( ISLA); Gruta GEM-1799, 1♀ 1imm., 5.V.2011, M . P. Oliveira leg. ( ISLA); 2♀ 2imm., 31.X.2010, R . A. Zampaulo leg. ( ISLA); Carajás, Floresta Nacional de Carajás, Gruta N4E32 (6°02'25"S; 50°09'43"W), 1♀, 8‒12.II.2007, R. Andrade et al. leg. ( IBSP 97751 View Materials ) GoogleMaps ; Gruta N4WS80 (6°04'34.4"S; 50°11'27.9"W), 1♀, 18.XI‒1.XII.2010 ( IBSP 174229 View Materials ) GoogleMaps ; Gruta N5S02 (6°05'33"S; 50°07'35"W), 1♀, 3‒13.V.2005, Andrade & Arnoni leg. ( IBSP 55777 View Materials ) GoogleMaps ; Gruta N5S-12 (06°06'11''S; 50°07'31''W), 1♀, 14‒23.X.2009, R. Andrade & I. Cizauskas leg. ( IBSP 174230 View Materials ) GoogleMaps ; Gruta N5S53/53 (6°06'28.3"S; 50°08'01.5"W), 1♀, 25.VIII‒3.IX.2009, R. Andrade et al. leg. ( IBSP 193494 View Materials ) GoogleMaps ; Gruta NIN8 N8-031 (6°09'54.0"S; 50°09'30.0"W), 1♀, 17.VII‒4.VIII.2014, Carste et al. leg. ( IBSP 193500 View Materials ) GoogleMaps ; Gruta N4E31 (6°05'33"S; 50°07'35"W), 1♀ ( IBSP 97752 View Materials ) GoogleMaps ; Gruta CRIS-10 (6°26'56.4"S; 49°41'08.6"W), 1♀, 29.VII‒6.VIII.2008, R. Andrade et al. leg. ( IBSP 174570 View Materials ) GoogleMaps ; Novo Progresso, Serra do Cachimbo, Campo de Provas Brigadeiro Velloso (09°21'89"S; 55°02'01"W), 1♀, 11.IX.2003, D.R. Santos-Souza leg. ( MPEG 6243 View Materials ) ; without specific data, 1♀, Mth. (MNHNP-AR); Maranhão State: Caxias, Reserva Ecológica Inhamum (04°53'56"S; 43°26'10"W), 2♂, 16‒19.I.2006, G. A GoogleMaps . Cunha leg. (IBSP 122448); 1♂, 12‒15.VII.2006, G.A. Cunha leg. (IBSP 122449); 1♂, 2006, F. Limeira leg. (IBSP 122450); Piauí State: Teresina [05°05'20"S; 42°48'07"W], Sítio do Carlos Brasil , 1♀, 15.V.2004, L.S. Carvalho leg. ( MPEG 5320 View Materials ) GoogleMaps ; Areias, Parque Estadual Mata do Pau Ferro (06°58'38,6"S; 35°42'25"W), 1♂, 26‒30. IX.2011, E. Araújo & A. Medeiros leg. (CHNUFPI 0285) GoogleMaps ; Pernambuco State: Tapera [09°25'38"S; 40°44'15"W], 1♀, 1.III.1972, P.F.L. Duarte leg. ( MCN 25804) GoogleMaps ; Sergipe State: Itabaiana, Parque Nacional da Serra de Itabaiana , 161m (10°47'02.9''S; 37°20'09.5''W), 1♀, 20.V.2012, I.L.F. Magalhães & J.L. Chavari leg. ( IBSP 166856 View Materials ) GoogleMaps ; Mato Grosso State: Cotriguaçu, Fazenda São Nicolau (09°50'24"S; 58°14'54"W), 1♂ 1♀, 2‒14.X.2010, A.J. Santos leg. ( UFMG 7743 View Materials ; 7744) GoogleMaps ; Miracema do Norte [09°34'01"S; 48°23'31"W], 1♀ 1imm., 17‒25.IV.2005, I. Knysak & R. Martins leg. ( IBSP 124516 View Materials ) GoogleMaps ; Porto Nacional, Capivara [10°09'44"S; 48°31'07"W], 1♀, 21.IX.2000, I. Knysak & R. Martins leg. (IBSP 124057); Porto Nacional [10°42'28"S; 48°25'01"W], Fazenda Sandoval, Cerrado, 1♀, 19.IX.2002, R. Martins & I. Knysak leg. ( IBSP 123806 View Materials ) GoogleMaps ; Palmas [10°11'04"S; 48°20'01"W], 1♀, 30.IX.2001, E. Butantan leg. ( IBSP 37797 View Materials ) GoogleMaps ; Querência, Fazenda Tanque (13°04'43''S; 52°23'26''W), 1♀, I.2014, R.B. Almeida leg. (IBSP 169568); Sapezal [13°32'33"S; 58°48'51"W], Utiariti , 1♀, 1961, K. Lenko leg. ( MZSP 3583 View Materials ) GoogleMaps ; Vale de São Domingos / Pontes de Lacerda, Usina Hidrelétrica de Guaporé [15°07'S; 58°58'W], 1♀, X.1999, E. Resgate leg. ( IBSP 41650 View Materials ) GoogleMaps ; Cuiabá, Gruta Kiogo Brado (15°37'1.94"S; 55°30'16.61"W), 1♀ 2imm., 27 October 2006, R.L. Ferreira leg. ( ISLA) GoogleMaps ; Tocantins State: Palmas, Gruta da Boa Esperança (10°22'55.3"S; 48°03'35.2"W), 2♀, 2.XII.2004, R GoogleMaps . L. Ferreira leg. ( ISLA); Goiás State: São Domingos [13°23'52"S; 46°19'04"W], Parque Estadual de Terra Ronca, Cavernas Passa Três , 1♀, 3‒5.IX.2000, F GoogleMaps . P. Franco leg. ( IBSP 26082 View Materials ); Minaçu, Usina Hidrelétrica Serra da Mesa [13°50'01"S; 48°18'10"W], 2♂ 3imm., 18‒30.XI.1996, A GoogleMaps . B. Bonaldo & L. Moura leg. ( MCN 27861); São Jorge, Parque Nacional da Chapada dos Veadeiros [14°10'S; 47°30'W], 1♀, 30.X.2009, P GoogleMaps .C. Motta leg. (DZUB 5379); Cocalzinho de Goiás [15°47'38"S; 48°46'33"W], RPPN, 1♂ 1imm., 2008, I.P. Rocha leg. ( DZUB 5965 ) GoogleMaps ; Morrinhos [17°43'55"S; 49°06'03"W], Fazenda Recanto do Jatobá, 2♂, 2009, W.C.R. Pinto leg. ( IBSP 152775 View Materials ; 152777); Jataí [17°52'51"S; 51°42'50"W], 2♀, 20.IX.2005, P GoogleMaps . C. Motta leg. ( DZUB 3880 ); Catalão, Barragem para Aproveitamento Hidrelétrico Serra do Facão (18°03'20,07"S; 47°37'55,63"W), 1♀, VII.2010, R GoogleMaps . B. Martines & R.M.C. Silveira leg. ( UFMG 4526 View Materials ); Catalão [18°10'12"S; 47°56'31"W], 1♂, 20.X.2001, P GoogleMaps . C. Motta, F.S.P. Godói & D. Diniz leg. ( DZUB 2530 ); Bahia State: Porto Seguro, Parque Nacional do Monte Pascoal (16°47'31"S; 39°28'30"W), 1♀, 21‒23.IV.1998, A GoogleMaps . D. Brescovit et al. leg. ( IBSP 18438 View Materials ); Mato Grosso do Sul State: Corumbá [19°00'32"S; 57°39'10"W], Serra do Urucum , 1♀, 27.XI.1960, K GoogleMaps . Lenko & C. Carvalho leg. ( MZSP 11564 View Materials ); Paranaíba [19°40'37"S; 51°11'27"W], 1♂, XI.1983, R GoogleMaps .R. da Silva leg. (IBSP 3768); 1♀, I.1983 (IBSP 4141); 1♀, 7.VI.1983 (IBSP 14084); Dois Irmãos do Buriti [20°27'S; 55°30'W], Piraputanga , 1♀, 31.VI‒6.VII.1999, A. D. Brescovit et al. leg. ( IBSP 98896 View Materials ) GoogleMaps ; Três Lagoas [20°45'04"S; 51°40'42"W], 1♀, VI.1964, C.D. Z. leg. ( MZSP 3616 View Materials ) GoogleMaps ; 1♀, X.1964, Exp. O.Z. leg. (MZSP 3766); Três Lagoas, Horto Barra da Moeda (20°58'S; 51°47'W), 1♂, XI.2007, M. Uehara-Prado leg. ( UFMG 3202 View Materials ) GoogleMaps ; Santa Rita do Rio Pardo [21°18'10"S; 52°49'51"W], 1♀, 23.IV.2001, R. Bertani & E.K. Kashimata leg. ( IBSP 39480 View Materials ) GoogleMaps ; Minas Gerais State: Januária, Parque Nacional do Peruaçu , 550m (15°08'45''S; 44°14'28.6''W), 1♀, 15.IV.2015, L GoogleMaps . S. Carvalho leg. (CHNUFPI 1516); Itacarambi, Distrito de Fabião II (15°10'19"S; 44°10'49"W), 1♂, 17‒22.X.2010, G.F.B.P. Ferreira et al. leg. ( UFMG 9357 View Materials ) GoogleMaps ; Águas Vermelhas [15°44'49"S; 41°27'36"W], 1♂, III.1985, V. Palmeira leg. ( MNRJ 6 View Materials 415) GoogleMaps ; Diamantina, Minas de Serrinha [18°14'56"S; 43°36'00"W], 1♂, 1945, E. Cohn leg. ( AMNH) GoogleMaps ; Morro do Pilar, Lageado (19°13'47,28''S; 43°22'59,76''W), 7♀ 1imm., 13‒14.XI.2013, P.H. Martins et al. leg. ( UFMG 14361 View Materials ) GoogleMaps ; Sete Lagoas, Gruta do Chisé [19°27'57"S; 44°14'49"W], 1♀, 25.II.2009 ( IBSP 149911 View Materials ) GoogleMaps ; Sete Lagoas, Entorno da Gruta da Lapinha (19°33'S; 43°57'W), 1♀, 23.VI.2001, R.L.C. Baptista leg. ( MNRJ 6186 View Materials ) GoogleMaps ; Matozinhos, Gruta MOC113 (19°33'19.3"S; 50°01'15.0"W), 1♀, 1‒8.VIII.2011, F. Franco leg. ( IBSP 19 View Materials 3495); Timóteo, Parque Estadual do Rio Doce (19°39'28.3"S; 42°34'22.5"W), 2♂, 19.XI.2010, B GoogleMaps . T. Faleiro leg. ( UFMG 10501 View Materials ); Timóteo, Parque Estadual do Rio Doce (19°39'30,1"S; 42°34'25,2"W), 1♂, 19.XI.2010, B GoogleMaps . T. Faleiro leg. ( UFMG 10488 View Materials ); Parque Estadual do Rio Doce (19°39'30,6"S; 42°34'28,2"W), 1♂, 19.XI.2010, B GoogleMaps . T. Faleiro leg. ( UFMG 10476 View Materials ); Parque Estadual do Rio Doce (19°39'30,7"S; 42°34'32,2"W), 2♂, 17.XII.2010, B GoogleMaps . T. Faleiro leg. ( UFMG 10457 View Materials ); Marliéria, Parque Estadual do Rio Doce (19°42'58,62''S; 42°44'01,69''W), 2♂, 2‒9 November 2000, D GoogleMaps .P. Araújo leg. (UFMG 14338); Caeté, Serra da Piedade [19°49'23.3"S; 43°41'02.4"W], 1♀, 16.XII.2012, Oliveira leg. ( IBSP 209936 View Materials ) GoogleMaps ; Santa Bárbara [19°57'32"S; 43°24'54"W], Reserva Florestal Peti , 1♂ 1♀, 14.VIII.1986, R.L.C. Baptista leg. ( MNRJ 6407 View Materials ) GoogleMaps ; Catas Altas [20°04'30"S; 43°24'28"W], Serra do Caraça , 1♀, 12‒23.XI.1961, U. Martins-Lenko & R. Kloss leg. ( MZSP 6687 View Materials ) GoogleMaps ; Catas Altas, RPPN Parque Natural do Caraça (20°05'51"S; 43°29'18"W), 1♀, 2011 ( UFMG 10368 View Materials ) GoogleMaps ; Mariana, Mina da Alegria [20°10'31.3"S; 43°29'37.4"W], Caverna 0 2, 1♀, 16‒17.IV.2009, R. Bessi et al. leg. ( IBSP 149763 View Materials ) GoogleMaps ; Ouro Preto (20°13'S; 43°30'W), 1♀, 1.III.2015, H.C. Costa leg. (CHNUFPI 1570) GoogleMaps ; Espírito Santo State: Linhares, Floresta Nacional de Goytacazes (19°26'07"S; 40°04'32"W), 1♀, 26.X.2005, T. Souza et al. leg. ( IBSP 134971 View Materials ) GoogleMaps ; Santa Teresa, Reserva Biológica Augusto Ruschi [19°54'20"S; 40°33'44''W], 1♀, VI‒VIII.2006, T. Souza, T. Barnabé & E. Soveiro leg. (IBSP 121566); São Paulo State: Luís Antônio, Estação Ecológica de Jataí [21°37'03''S; 47°45'55''W], 5♂ 1♀, 3‒7.X.2009, A.G. Cristovão leg. ( IBSP 166947‒166951 View Materials ) GoogleMaps ; 1♀, 6‒12.XI.2009, A.G. Cristovão leg. (IBSP 166946); Tabatinga [21°47'05"S; 48°38'09"W], Mata Sagrada , 1♀, 27.VIII.1965, K. Lenko leg. ( MZSP 1 View Materials 1565) GoogleMaps ; Araraquara, Jardin Nova América [21°47'38"S; 48°10'33"W], 1♀, XII.2010, S.C.F.S.A. leg. (IBSP 209935); Assis, Estação Ecológica de Assis (22°34'S; 50°24'W), 1♂ 1♀, 25‒30.XI.2002, Exp GoogleMaps . Biota leg. ( IBSP 98907 View Materials ; 98908); Assis [22°39'43"S; 50°24'43"W], 3♂, F.T.S. Morimoto leg. ( IBSP 166852‒166854 View Materials ) GoogleMaps ; Rosana, Usina Hidrelétrica Engenheiro Sérgio Motta [22°34'48"S; 53°03'32"W], 1♀, I‒II.2000, E. Butantan leg. (IBSP 29705); Bernardino de Campos [23°00'46"S; 49°28'26"W], 1♀, 19.XI.2003, A.C.B. Silveira leg. ( IBSP 40946 View Materials ) GoogleMaps ; Ubatuba, Parque Estadual da Ilha Anchieta (23°31'‒ 23°34'S; 45°02'‒ 45°05'W), 1♂, 23‒30.VII.2001, Exp. Biota leg. ( IBSP 66834 View Materials ) GoogleMaps ; São Paulo [23°32'52"S; 46°38'09"W], 1♀, X.1991, J.C. Ferreira leg. ( IBSP 5822 View Materials ) GoogleMaps ; Barueri [23°30'39"S; 46°52'33"W], 1♀, 9.I.1966, K. Lenko leg. ( MZSP 5598 View Materials ) GoogleMaps ; 1♀, 3.X.1960, K. Lenko leg. (MZSP 8387); Registro, Porto Cabral [24°29'16"S; 47°50'38"W], 2♂, L. Travessos F° leg. (MZSP 77; 8591); Rio de Janeiro State: Campos dos Goytacazes, Morro Itaoca, Aprovisionamento (21°45'14"S; 41°19'26"W), 1♀, 22.I.2010, M. Marques leg. ( IBSP 166857 View Materials ) GoogleMaps ; Paraíba do Sul, Fazenda Maravilha (22°12'S; 43°16'W), 1♀, 16‒18.VIII.2001, Exp. Biota leg. ( IBSP 98888 View Materials ) GoogleMaps ; Macaé, Ilha de Santana [22°24'S; 41°42'W], 1♂, 19‒20.X.1986, R.L.C. Baptista leg. ( MNRJ 6406 View Materials ) GoogleMaps ; Pinheiral , Fazenda Santa Helena [22°31'S; 43°58'W], 3♂ 1♀, 5‒11.XI.1999, A.D. Brescovit et al. leg. ( IBSP 98884‒98887 View Materials ) GoogleMaps ; Rio de Janeiro, Floresta da Tijuca, Guanabara [22°57'47"S; 43°14'40"W], 3♂, VI.1966, Alvarenga leg. ( MZSP 20137 View Materials ; 20139; 20167) GoogleMaps ; Paraná State: Diamante do Paraná [22°37'06"S; 52°51'23"W], Estação Ecológica do Caiuá , 1♀, 2012, D. Araujo et al. leg. ( IBSP 166855 View Materials ) GoogleMaps ; Pinhais [22°26'41"S; 49°11'33"W], Serra da Farinha Seca , 1♀, 15‒20.IX.1995, E.L. Aracnologia leg. ( MCTP 7649 View Materials ) GoogleMaps ; Cambará [23°02'45''S; 50°04'26''W], 1♀, 15‒17.VI.1937, H.E. Hinton leg. ( NHM 1941.1.7.63) GoogleMaps ; BOLIVIA: Santa Cruz Department: Buena Vista , 344m (17°29'33,6"S; 63°39'29,9"W), 1♂, 2.XII.2010, R GoogleMaps . Pintoda-Rocha et al. leg. ( MZSP 68119 View Materials ); PARAGUAI: 1♀, 1891‒1893, Dr . Bohls leg. (NHM 1906.3.24.3-1500 (hart)).

Diagnosis. Ariadna boliviana is similar to A. isthmica , A. ipojuca n. sp. and A. gaucha n. sp. due to the morphology of male palp ( Figs 37A‒B View FIGURE 37 , 44A‒B View FIGURE44 , 58G‒H View FIGURE 58 , 61A‒B View FIGURE 61 ), metatarsi IV ( Figs 36F View FIGURE 36 , 43F View FIGURE 43 , 58F View FIGURE 58 , 60F View FIGURE 60 ), and leg macrosetae pattern of females, but differ by the presence of males with sinuous metatarsi I, with a marked bend in the proximal region ( Fig. 36C‒E View FIGURE 36 ); females differ from these species, except A. gaucha n. sp., by the presence of a ventral lobe longer than the dorsal one; it differs from A. gaucha n. sp. by the less sinuous ventral lobe ( Figs 10A‒C View FIGURE 10 , 37C‒D View FIGURE 37 ).

Description. Male (IBSP 152775). Carapace and chelicerae brownish orange ( Fig. 36A View FIGURE 36 ). Endites orange; labium dark orange. Sternum orange with darker margins, and three pairs of dark marginal areas, the hind one fainted ( Fig. 36B View FIGURE 36 ). Palps light orange ( Fig. 37A‒B View FIGURE 37 ). Legs brownish orange, pairs I‒II darker, with the femur, patella and tibia marbled with dark pigment, and dark diffuse rings in the distal region of metatarsus ( Fig. 36C‒F View FIGURE 36 ). Abdomen grey, lighter ventrally ( Fig. 36A‒B View FIGURE 36 ). Total length 8.64; carapace 4.12 long, 2.8 wide. Palps: tibia incrassated, with the dorso-ventral diameter shorter than the bulb; bulb sub-rectangular, mid-portion shorter than the embolus and directed backwards; mid-portion/embolus transition conspicuous; embolus long and with a tubular tip ( Figs 4A‒C View FIGURE4 , 37A‒B View FIGURE 37 ). Legs: robust and coated with setae ( Fig. 36C‒F View FIGURE 36 ); metatarsi I with short macrosetae, with similar size ( Fig. 36C‒E View FIGURE 36 ); metatarsi IV sinuous, in lateral view ( Fig. 36F View FIGURE 36 ); tarsal brush of putative chemosensory setae present in legs II‒IV, extending to the median region of the metatarsi ( Fig. 36F View FIGURE 36 ). Leg formula: I-II-IV-III. Leg measurements: I, femur 3.92, patella 1.6, tibia 3.56, metatarsus 3.84, tarsus 0.84, total 13.76; II, 3.76, 1.6, 3.44, 3.6, 0.84, 13.24; III, 2.68, 1.28, 2.04, 2.24, 0.76, 9.0; IV, 3.16, 1.48, 2.6, 2.32, 0.8, 10.36. Macrosetae: I, femur d0-0-1- 0-1-0-1-0-2, p0-0-0-0-0-1-1-0; patella p0-0-1/0; tibia d0-0-0-1/0-0-1-0, r1-1-0-1-0-1-0, vp1-0-0-0-0-0-1, vr2-0-1- 0-1-0/1-1, r1-1-1-1-1-1-1-1; metatarsus p0-0-1-0-0-0-0-0-0-0, vp0-0-0-1-1-1-1-1-0-0, vr0-0-0-0-1-0-0-1 ( Fig. 36C‒E View FIGURE 36 ); II, femur d0-0-1-0-1-0-1-1-2, p0-0-0-0-0-1-1-0; tibia d0-0-0-0-0-1-0, p1-1-0-1-0-1-0, vp0-0-0-0-1-0-1, vr2-0-1-0-1-0-1, r1-1/0-1-1-2/1-0-1-0; metatarsus p0-0-1-0-0-0-0, vp0-0-1-0-0/1-1-0-1, vr0-1-0-1-1-0-1-1, r0-0-1- 0-0-1-0-0; IV, D1-1-1-0-1-0-0-0, r0-0-0-0-0-0-1-0; IV, metatarsus vp0-0-0-0-0-0-1, vr metatarsal comb with 4 macrosetae.

Female (IBSP 193500). Carapace and chelicerae dark reddish brown ( Fig. 36G View FIGURE 36 ). Endites brownish orange; labium dark brownish orange. Sternum brownish orange with darker margins, and three pairs of dark marginal areas, the hind one fainted ( Fig. 36H View FIGURE 36 ). Palps brownish orange, darkening gradually in distal direction. Legs brownish orange, pairs I‒II darker and with dark pigment densely distributed in the femur, patella, tibia, and proximal region of the metatarsus, and forming rings in metatarsus and tarsus distal region ( Fig. 36I ‒J View FIGURE 36 ). Abdomen as in male ( Fig. 36G‒H View FIGURE 36 ). Total length 12.4; carapace 5.44 long, 3.6 wide. Carapace with the cephalic region elevated ( Figs 1B View FIGURE 1 , 36G View FIGURE 36 ). Legs: robust and densely coated with setae, mainly on the ventral region of pairs I‒III; legs I‒II with ventro-prolateral and ventro-retrolateral tibial macrosetae of similar size, and metatarsal macrosetae of different sizes ( Fig. 7A‒C View FIGURE 7 , 36I ‒J View FIGURE 36 ). Leg formula: I-II-IV-III. Leg measurements: I, femur 4.28, patella 2.12, tibia 3.6, metatarsus 3.44, tarsus 0.88, total 14.32; II, 4.0, 2.04, 3.52, 3.32, 0.84, 13.72; III, 2.96, 1.56, 2.24, 2.24, 0.8, 9.8; IV, 3.76, 1.84, 2.92, 2.44, 0.8, 11.76. Macrosetae: I, femur d0-0-0-0-0-0-2, p0-0-0-0-2-1-0; tibia p0-1-0-1-0-1- 0, vp1-0-1-0-1-0-1, vr1-0-1-0-1-0-1, r0-1-0-1-0-1-0; metatarsus vp1-1-1-1-1-1-1-1-1, vr1-1-1-1/0-1-1-1-1-1 ( Fig. 36I ‒J View FIGURE 36 ); II, femur d0-0-0-0-0-2-0, p0-0-0-0-1-1-0; tibia p0-1-0-1-0-1-0, vp0-0-1(slender)-0-1-0-1, vr1-0-1-0-1-0-1, r0-1-0-1-0-1-0; metatarsus vp1-1-1/0-1-1-1-1-1-1-1, vr1-1-1-0-0-1-1-0-1-1; IV, metatarsus vp0-0-0-0-0-0-1, vr metatarsal comb with 4 macrosetae ( Fig. 7F View FIGURE 7 ). Internal genitalia: anterior receptaculum with glandular ducts plate located in the median region, expanded in its proximal region ( Figs 10A‒C View FIGURE 10 , 37C‒D View FIGURE 37 ).

Variation. Male (n=10): Total length 5.2‒8.64; carapace 2.8‒4.12 long, 1.96‒2.8 wide; femur I 2.96‒3.96. Female (n=10): total length 8.4‒12.4; carapace 4.12‒5.76 long, 2.6‒3.8 wide; femur I 2.84‒4.52.

Distribution. Suriname, Bolivia, Paraguay and almost entire Brazilian territory ( Fig. 71 View FIGURE 71 ).

References

Beatty, J. A. (1970) The spider genus Ariadna in the Americas (Araneae, Dysderidae). Bulletin of the Museum of Comparative Zoology, 139 (8), 433 - 518.

Blackwall, J. (1858) Characters of a new genus and description of three recently discovered species of Araneida. Annals and Magazine of Natural History, Series 3, 2, 331 - 335.

Foelix, R. F. (2011) Biology of spiders. 3 rd Edition. Oxford University Press, New York, 432 pp.

Mello-Leitao, C. F. de (1917) Notas arachnologicas. 5, Especies novas ou pouco conhecidas do Brasil. Broteria, 15, 74 - 102.

Moreira, T. S., Baptista, R. L. C., Kury, A. B., Giupponi, A. P. L., Buckup, E. H. & Brescovit, A. D. (2010) Annotated check list of Arachnida type specimens deposited in the Museu Nacional, Rio de Janeiro. II - Araneae. Zootaxa, 2588, 1 - 91.

Petrunkevitch, A. (1911) A synonymic index-catalogue of spiders of North, Central and South America with all adjacent islands, Greenland, Bermuda, West Indies, Terra del Fuego, Galapagos, etc. Bulletin of the American Museum of Natural History, 29, 1 - 791. https: // doi. org / 10.5962 / bhl. title. 23819

Simon, E. (1907) Etude sur les araignees de la sous-section des Haplogynes. Annales de la Societe Entomologique de Belgique, 51, 246 - 264. https: // doi. org / 10.5962 / bhl. part. 1584

World Spider Catalog (2018) World Spider Catalog. Natural History Museum Bern, version 19.0. Avaliable from: http: // wsc. nmbe. ch / (accessed on 16 January 2018)

Figures

FIGURE 1. Images of live specimens of Ariadna: Ariadna mollis (Holmberg, 1876), male (A) and female (B); Ariadna crassipalpa (Blackwall, 1863), female (C); Aridna comata O. P.-Cambridge, 1898, female (D). Photos by R.P. Indicatti (A‒C) and L.S. Carvalho (D).

FIGURE 3. SEM images of Ariadna boliviana Simon, 1907, male from Estação Ecológica de Jataí (IBSP 166947) (A, C‒F) and female from Paranaíba (IBSP 14084) (B): cephalothorax, dorsal view (A, B); chelicerae, frontal view (C), arrowheads = basal transverse ridge, asterisks = basal longitudinal band of ridges and/or tubercles; left chelicera, ventro-prolateral view (D), arrowhead = internal serrula, asterisk = left inset = cheliceral tooth, right inset = cheliceral gland; endites and labium, ventral view (E); endites and labrum, frontal view (F), inset = setae that compose the distal setae tuft.

FIGURE4. SEM imagensof Ariadna bolivianaSimon, 1907, males from Parque Estadual do Rio Doce (UFMG 10501) (A‒C) and Estação Ecológica de Jataí (IBSP 166947) (D‒E), and female from Paranaíba (IBSP 14084) (F‒G): left palp, retrolateral (A) and frontal view (B), arrowhead = cymbium distal notch, inset = trichobothrium from palp tibia; embolus tip, retrolateral view (C); bulb, internal view of spermatic duct (D), arrowhead = internal porous stripe; internal porous stripe in detail, internal view (E); right palp, ventro-prolateral view (F), asterisk = thickened and serrated tactile setae; apical region of palp tarsus, arrowheads = chemosensory setae, asterisks = thickened and serrated tactile setae.

FIGURE 5. Ariadna boliviana Simon, 1907, male from Morrinhos (IBSP 152775) (A‒B): left palp, retrolateral view, midportion showing the less sclerotized region in detail (A); tarsus-metatarsus IV junction, retrolateral view (B), arrowheads = ventral brush of putative chemosensory setae,asterisk = preening comb of macrosetae.

FIGURE 7. SEM images of Ariadna boliviana Simon, 1907, female from Paranaíba (IBSP 14084) (A‒G):left leg I, prolateral view (A); leftmetatarsus and tarsus I, prolateralview (B);left metatarsus andtarsus,ventral view (C); left tarsus I,ventral view (D), thickened tactile setae in blue, chemosensory setae in yellow; right metatarsus and tarsus IV, prolateral view (E), arrowheads = brush of thickened and serrated setae; right metatarsus IV, ventro-retrolateral view, distal preening comb of macrosetae (F), asterisks = thickened and serrated setae; left tarsus I, ventral view, detail of thickened setae.

FIGURE 8. SEM images of Ariadna boliviana Simon, 1907, female from Paranaíba (IBSP 14084) (A‒F): spinnerets, ventroposterior view (A), arrowheads = diagnal membranous stripe from ALS; right PLS, posterior view (B); left PMS, posterior view (C); right ALS, posterior view (D), asterisk = prolateral field of strain sensillae; left ALS, detail of the prolateral field of strain sensillae (E), arrowhead = canoe-shaped area, asterisks = rounded areas; colulus, ventral view (F).

FIGURE 10. SEM images of Ariadna boliviana Simon, 1907, female from Parauapebas (IBSP 193499): anterior receptaculum, lateral (A) and frontal view (B); internal genitalia, frontal view (C); posterior wall of bursa copulatrix, lateral view, origin of the posterior receptaculum (D), arrowhead = median membranous crack; pore of a tubular invagination in the membranous cuticle of the posterior receptaculum (E); posterior receptaculum, internal view, tubular invaginations (F‒G).

FIGURE 36. Ariadna boliviana Simon, 1907. Male from Morrinhos (IBSP 152775) (A‒F): habitus, dorsal (A) and ventral view (B); right leg I, prolateral (C) and retrolateral view (D); right metatarsi I, ventral view (E); left metatarsi IV, retrolateral view (F). Female from Parauapebas (IBSP 193500) (G‒J): habitus, dorsal (G) and ventral view (H); right leg I, prolateral (I) and retrolateral view (J). Scale bar:1mm.

FIGURE 37. Ariadna boliviana Simon, 1907. Male from Morrinhos (IBSP 152775) (A‒B): left palp, prolateral (A) and retrolateral view (B). Female from Assis (IBSP 98907) (C‒D): internal genitalia, lateral view (C); anterior receptaculum, ventral view (D).Scale bar:1mm.

FIGURE 43. Ariadna isthmica Beatty, 1970. Males (Paratype) (AMNH) (A‒D, F) and (Holotype) (MCZ 21712) (E), both from Barro Colorado Island: habitus. dorsal (A) and ventral view (B); left leg I, prolateral (C) and retrolateral view (D); left metatarsus I, ventral view (E); left metatarsus IV, retrolateral view (F). Female from Barro Colorado Island (USNM) (G‒J): habitus, dorsal (G) and ventral view (H); left leg I, prolateral (I) and retrolateral view (J). Scale bar: 1mm.

FIGURE 58. Ariadna ipojuca n. sp.. Male (Holotype) from Ipojuca (IBSP 133641) (A‒H): habitus, dorsal (A) and ventral view (B); left leg I, prolateral (C) and retrolateral view (D); left metatarsus I, ventral view (E); left metatarsus IV, retrolateral view (F); left palp, prolateral (G) and retrolateral view (H). Scale bar: 1mm.

FIGURE 60. Ariadna gaucha n. sp.. Male (Paratype) from Porto Alegre (MCN 25873) (A‒F): habitus, dorsal (A) and ventral view (B); rightleg I, prolateral (C) and retrolateral view (D); right metatarsus I, ventral view (E); leftmetatarsus IV,retrolateral view (F).Female(Paratype) from Cantagalo(MCN 1043) (G‒J):habitus, dorsal (G) and ventral view (H); rightleg I, prolateral (I) and retrolateral view (J). Scale bar:1mm.

FIGURE 61. Ariadna gaucha n. sp.. Male (Paratype) from Porto Alegre (MCN 25873) (A‒B): left palp, prolateral (A) and retrolateral view (B). Female (Paratype) from Cantagalo (MCN 1043) (C‒D): internal genitalia, lateral view (E); anterior receptaculum, ventral view (F). Scale bar:1mm.

FIGURE 71. Locality of the specimens of A. obscura, A. boliviana, A. aurea n. sp., A. ipojuca n. sp. and A. ubajara n. sp. examined in the present study.

FIGURE44.Ariadna isthmicaBeatty, 1970.Male (Paratype)from BarroColorado Island (AMNH) (A‒B):left palp,prolateral (A) and retrolateral view (B). Female (Paratype) from Canal Zone Forest Preserve (MCZ 27673) (C‒D): internal genitalia, lateral view (C); anterior receptaculum, ventral view (D). Scale bar: 1mm.