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--1: 59-62

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https://doi.org/10.11646/zootaxa.4400.1.1

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persistent identifier

http://treatment.plazi.org/id/039B87D1-FFDE-B127-169B-F8ACC3E8F81D

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scientific name

Ariadna boliviana Simon, 1907
status

 

Ariadna boliviana Simon, 1907 

Figures 3‒5View FIGURE 3View FIGURE4View FIGURE 5, 7‒8View FIGURE 7View FIGURE 8, 10 View Figure , 36‒37View FIGURE 36View FIGURE 37, 71 View Figure

Ariadna boliviana Simon, 1907: 262  (♀ 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  (♀ 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. ( NHMAbout 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 193496‒193499View 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 193502View 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 193501View 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, MGoogleMaps  . P. Oliveira leg. ( ISLA); Gruta GEM-1764 (6°07'58"S; 50°08'14"W), 1♀, 25.X.2010, MGoogleMaps  . P. Oliveira leg. ( ISLA); Gruta GEM-1715 (6°07'59"S; 50°08'06"W), 1imm., 4.V.2011, MGoogleMaps  . 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 97751View Materials)GoogleMaps  ; Gruta N4WS80 (6°04'34.4"S; 50°11'27.9"W), 1♀, 18.XI‒1.XII.2010 ( IBSP 174229View Materials)GoogleMaps  ; Gruta N5S02 (6°05'33"S; 50°07'35"W), 1♀, 3‒13.V.2005, Andrade & Arnoni leg. ( IBSP 55777View Materials)GoogleMaps  ; Gruta N5S-12 (06°06'11''S; 50°07'31''W), 1♀, 14‒23.X.2009, R. Andrade & I. Cizauskas leg. ( IBSP 174230View 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 193494View 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 193500View Materials)GoogleMaps  ; Gruta N4E31 (6°05'33"S; 50°07'35"W), 1♀ ( IBSP 97752View 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 174570View 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 6243View 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. AGoogleMaps  . 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 5320View 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. ( MCNAbout 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 166856View 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 7743View 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 124516View 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 123806View Materials)GoogleMaps  ; Palmas [10°11'04"S; 48°20'01"W], 1♀, 30.IX.2001, E. Butantan leg. ( IBSP 37797View 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 3583View 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 41650View 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, RGoogleMaps  . 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, FGoogleMaps  . P. Franco leg. ( IBSP 26082View Materials); Minaçu, Usina Hidrelétrica Serra da Mesa [13°50'01"S; 48°18'10"W], 2♂ 3imm., 18‒30.XI.1996, AGoogleMaps  . B. Bonaldo & L. Moura leg. ( MCNAbout MCN 27861); São Jorge, Parque Nacional da Chapada dos Veadeiros [14°10'S; 47°30'W], 1♀, 30.X.2009, PGoogleMaps  .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 152775View Materials; 152777); Jataí [17°52'51"S; 51°42'50"W], 2♀, 20.IX.2005, PGoogleMaps  . 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, RGoogleMaps  . B. Martines & R.M.C. Silveira leg. ( UFMG 4526View Materials); Catalão [18°10'12"S; 47°56'31"W], 1♂, 20.X.2001, PGoogleMaps  . 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, AGoogleMaps  . D. Brescovit et al. leg. ( IBSP 18438View Materials); Mato Grosso do Sul State: Corumbá [19°00'32"S; 57°39'10"W], Serra do Urucum , 1♀, 27.XI.1960, KGoogleMaps  . Lenko & C. Carvalho leg. ( MZSP 11564View Materials); Paranaíba [19°40'37"S; 51°11'27"W], 1♂, XI.1983, RGoogleMaps  .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 98896View Materials)GoogleMaps  ; Três Lagoas [20°45'04"S; 51°40'42"W], 1♀, VI.1964, C.D. Z. leg. ( MZSP 3616View 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 3202View 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 39480View Materials)GoogleMaps  ; Minas Gerais State: Januária, Parque Nacional do Peruaçu , 550m (15°08'45''S; 44°14'28.6''W), 1♀, 15.IV.2015, LGoogleMaps  . 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 9357View Materials)GoogleMaps  ; Águas Vermelhas [15°44'49"S; 41°27'36"W], 1♂, III.1985, V. Palmeira leg. ( MNRJ 6View Materials 415)GoogleMaps  ; Diamantina, Minas de Serrinha [18°14'56"S; 43°36'00"W], 1♂, 1945, E. Cohn leg. ( AMNHAbout 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 14361View Materials)GoogleMaps  ; Sete Lagoas, Gruta do Chisé [19°27'57"S; 44°14'49"W], 1♀, 25.II.2009 ( IBSP 149911View 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 6186View Materials)GoogleMaps  ; Matozinhos, Gruta MOC113 (19°33'19.3"S; 50°01'15.0"W), 1♀, 1‒8.VIII.2011, F. Franco leg. ( IBSP 19View Materials 3495); Timóteo, Parque Estadual do Rio Doce (19°39'28.3"S; 42°34'22.5"W), 2♂, 19.XI.2010, BGoogleMaps  . T. Faleiro leg. ( UFMG 10501View Materials); Timóteo, Parque Estadual do Rio Doce (19°39'30,1"S; 42°34'25,2"W), 1♂, 19.XI.2010, BGoogleMaps  . T. Faleiro leg. ( UFMG 10488View Materials); Parque Estadual do Rio Doce (19°39'30,6"S; 42°34'28,2"W), 1♂, 19.XI.2010, BGoogleMaps  . T. Faleiro leg. ( UFMG 10476View Materials); Parque Estadual do Rio Doce (19°39'30,7"S; 42°34'32,2"W), 2♂, 17.XII.2010, BGoogleMaps  . T. Faleiro leg. ( UFMG 10457View Materials); Marliéria, Parque Estadual do Rio Doce (19°42'58,62''S; 42°44'01,69''W), 2♂, 2‒9 November 2000, DGoogleMaps  .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 209936View 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 6407View 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 6687View Materials)GoogleMaps  ; Catas Altas, RPPN Parque Natural do Caraça (20°05'51"S; 43°29'18"W), 1♀, 2011 ( UFMG 10368View 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 149763View 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 134971View 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 166947‒166951View 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 1View 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, ExpGoogleMaps  . Biota leg. ( IBSP 98907View Materials; 98908); Assis [22°39'43"S; 50°24'43"W], 3♂, F.T.S. Morimoto leg. ( IBSP 166852‒166854View 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 40946View 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 66834View Materials)GoogleMaps  ; São Paulo [23°32'52"S; 46°38'09"W], 1♀, X.1991, J.C. Ferreira leg. ( IBSP 5822View Materials)GoogleMaps  ; Barueri [23°30'39"S; 46°52'33"W], 1♀, 9.I.1966, K. Lenko leg. ( MZSP 5598View 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 166857View Materials)GoogleMaps  ; Paraíba do Sul, Fazenda Maravilha (22°12'S; 43°16'W), 1♀, 16‒18.VIII.2001, Exp. Biota leg. ( IBSP 98888View Materials)GoogleMaps  ; Macaé, Ilha de Santana [22°24'S; 41°42'W], 1♂, 19‒20.X.1986, R.L.C. Baptista leg. ( MNRJ 6406View 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 98884‒98887View Materials)GoogleMaps  ; Rio de Janeiro, Floresta da Tijuca, Guanabara [22°57'47"S; 43°14'40"W], 3♂, VI.1966, Alvarenga leg. ( MZSP 20137View 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 166855View 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 7649View Materials)GoogleMaps  ; Cambará [23°02'45''S; 50°04'26''W], 1♀, 15‒17.VI.1937, H.E. Hinton leg. ( NHMAbout 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, RGoogleMaps  . Pintoda-Rocha et al. leg. ( MZSP 68119View 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 , 44A‒B View Figure , 58G‒H View Figure , 61A‒B View Figure ), metatarsi IV ( Figs 36F View Figure , 43F View Figure , 58F View Figure , 60F View Figure ), 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 ); 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 , 37C‒D View Figure ).

Description. Male ( IBSPAbout IBSP 152775). Carapace and chelicerae brownish orange ( Fig. 36A View Figure ). 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 ). Palps light orange ( Fig. 37A‒B View Figure ). 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 ). Abdomen grey, lighter ventrally ( Fig. 36A‒B View Figure ). 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 Figure , 37A‒B View Figure ). Legs: robust and coated with setae ( Fig. 36C‒F View Figure ); metatarsi I with short macrosetae, with similar size ( Fig. 36C‒E View Figure ); metatarsi IV sinuous, in lateral view ( Fig. 36F View Figure ); tarsal brush of putative chemosensory setae present in legs II‒IV, extending to the median region of the metatarsi ( Fig. 36F View Figure ). 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 ); 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 ( IBSPAbout IBSP 193500). Carapace and chelicerae dark reddish brown ( Fig. 36G View Figure ). 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 ). 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 ). Abdomen as in male ( Fig. 36G‒H View Figure ). Total length 12.4; carapace 5.44 long, 3.6 wide. Carapace with the cephalic region elevated ( Figs 1B View Figure , 36G View Figure ). 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 , 36I ‒J View Figure ). 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 ); 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 ). Internal genitalia: anterior receptaculum with glandular ducts plate located in the median region, expanded in its proximal region ( Figs 10A‒C View Figure , 37C‒D View Figure ).

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 ).

NHM

University of Nottingham

MCN

McNeese State University

AMNH

American Museum of Natural History

IBSP

Instituto Biologico de Sao Paulo

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Segestriidae

Genus

Ariadna

Loc

Ariadna boliviana Simon, 1907

Giroti, André Marsola & Brescovit, Antonio Domingos 2018

2018
Loc

Ariadna dubia Mello-Leitão, 1917 : 82

Mello-Leitao 1917: 82

1917
Loc

Ariadna boliviana

Simon 1907: 262

1907