Lasiodora franciscana Bertani 2023, n. sp.
Creators: name: Bertani, Rogério
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Theraphosidae
Lasiodora
Lasiodora franciscana

description: Lasiodora franciscana n. sp.
(Figs 11, 16 ─18, 255─284)
Diagnosis. Lasiodora franciscana n. sp. males and females resemble those of L. parahybana, L. benedeni, L. klugi (part) and L. sertaneja n. sp. (part) by having spiniform setae only on the upper distal area of the retrolateral maxilla (Figs 266 ─267). They can be distinguished from L. parahybana, L. klugi (part) and L. benedeni by having slender, acicular stridulatory setae on the prolateral coxae (Figs 263─264); from those of L. sertaneja n. sp. by the retrolateral distal maxilla covered with weakly developed spiniform setae on its upper area (Figs 266 ─267).
Etymology. The specific epithet refers to the São Francisco River, one of the most important Brazilian rivers, being almost 3,000 kilometers in length. It originates in the southwestern state of Minas Gerais and runs north throughout the states of Minas Gerais and Bahia and washes to the Atlantic Ocean in the boundary between the states of Alagoas and Sergipe. The new species distribution mostly overlaps the southern part of the São Francisco valley.
Type material. Holotype male from Brazil, state of Goiás, Guaraní de Goiás [13°56’S, 46°28’W], A. Chagas Júnior & M. E. Bichuette col., 24 April 2000 (IBSP 8622), paratype female from Brazil, state of Goiás, Bela Vista de Goiás, Faz. Pedra [16°58’S, 48°57’W], F. Lagoa, 28 April 1986, ref. 51477 (IBSP 4865 C).
Other material examined. BRAZIL: Bahia: without locality, 1 male, M. A. Leite, February 1982, ref. 40877 (IBSP 4703); 1 male, identified by Mello-Leitão as Lasiodora klugii (sic.) (MNRJ 40); Carinhanha, Serra do Ramalho, André’s cave [14°17’S, 43°46’W], 1 female, A. Giupponi, R. Baptista & A. Chagas, (MNRJ 3508); Jaborandi [13°37’S, 44°28’W], 1 male, R. Melani, 6 April 2010 (DZUB 5537); Fazenda Jatobá, 1 female, O. Pires Jr., 30 January 2008 (DZUB 4875); 1 female, same collector and data, inside termite mound (DZUB 4874); Fazenda Trijunção, 1 female, R. A. Brandão, 1 November 2004, inside termite mound (DZUB 3306); 1 female, J. C. A. Rodrigues, 30 January 2008, pitfall trap (DZUB 4878 A); Between Jaborandi and Monte Alegre (GO), 1 male, O. Pires Jr. col., without data (DZUB 10161); Santana, Padre Santana’s cave [12°58’S, 44°3’W], 1 male, P. Gnaspini, 16 September 2001 (IBSP 10965); Distrito Federal: Brasília [15°47’S, 47°54’W], 1 male (IBSP 3729); 1 male, O. Pires Jr., 1 January 1997 (DZUB 350); 1 male, without colector, 20 February 1999 (DZUB 357); 1 female, G. Zerbini, 21 May 2002 (DZUB 2008); 1 female, M. E. Mamede, 18 October 1996 (DZUB 731); 1 male, no collector, 20 January 2008 (DZUB 4886); 1 male, no collector, 21 February 2008 (DZUB 4926); Asa Norte, UnB/IB, inside a catch basin, 1 female, P. C. Motta, 19 May 2015 (DZUB 7761); Asa Sul, (712S), Rogério Lima, 31 March 2009 (DZUB 5130); Colégio Santo Antônio (911 S), 1 female, without collector, 30 May 2007 (DZUB 4687); Brazlândia [15°40’S, 48°12’W], 1 female, M. M. Rodrigues, 6 March 2010 (DZUB 5842); Planaltina, Rio Preto [15°37’S, 47°39’W], 2 males, C. Carvalho, February 1983, ref. 43205 (IBSP 4884); Planaltina, Condominio Bom Sucesso, 1 female, M. M. Rodrigues, 15 May 2010 (DZUB 5631); São Sebastião [15°54’S, 47°46’W], 1 male, Guilherme, 2 February 2002 (DZUB 1586); Sobradinho [15°39’S, 47°47’W], 1 female, P. C. Motta, 1 September 2003, with egg sac, under fallen log (DZUB 2595); Taguatinga [15°48’S, 48°03’W], 1 male, J. Gilmar, 15 February 2002 (DZUB 1595); Goiás: 1 female, Supermercado, 12 May 1975, ref. 16437 (IBSP 4133 A); Alexânia [16°05’S, 48°30’W], 1 female, O. Pires Jr. col., 11 November 2006 (DZUB 4727); Alto Paraíso de Goiás [14°08’S, 47°31’W], 1 male, A. A. MN. Coelho, 28 February 1999 (DZUB 368); Anápolis [16°19’S, 48°57’W], 1 male (IBSP ref. 82309); 1 female, S. W G. Silva col., 20 February 2022 (DZUB 10616); Caldas Novas [17°44’S, 48°37’W], 1 female, A. Stukas, ref. 69408 (IBSP 6430); Parque Estadual Serra de Caldas Novas [17°48’S, 48°41’W], 1 female, P. C. Motta, 1 June 2017 (DZUB 8771); 1 female, same collector anda data (DZUB 8773); Catalão, Fazenda Pé do Morro (18°06’56.09”S, 47°59’57.94”W), 1 female, R. Bertani, P. I. Silva Jr., P. Monteiro, I. Soliz R., 21 October 2015, at night, inside termite mound, Atlantic Forest patch CAT 015 (MZUSP 78876); Rod. BR 050 km 233 [17°49’S, 47°46’W], 1 female, without collector, 23 March 1994 (DZUB 73); Corumbá de Goiás [15°55’S, 48°48’W], 1 female, E. Swartele, 12 June 1986, ref. 52172 (IBSP 4865 D); Cristalina [16°46’S, 47°36’W], 1 male, P. C. Motta, 4 February 2000 (DZUB 968); Formosa [15°32’S, 47°20’W], 1 male, Y. Mendonza, 22 February 2004 (IBSP 10651); 1 male, C. Mello, 22 February 2001 (IBSP 8873); Goianésia [15°18’S, 49°7’W], 1 female, Y. Gouveia, 17 August 1998, ref. 83374 (IBSP 8245); Iaciara [14°06’S, 46°38’W], 1 male, Vandélio, 4 February 2004 (DZUB 2803); Ipamerí [17°43’S, 48°9’W], 1 female, D. Mitteldorf, July 1985, ref. 49538 (IBSP 4865 B); Itumbiara [18°24’S, 49°12’W], 1 female, F. C. Elétricas, ref. 26047 (IBSP 6356); Luziânia [16°15’S, 47°55’W], 1 immature, without colector, 17 April 2001 (DZUB 1145); 1 female, F. Krause, 21 July 2005 (DZUB 3752); 1 female, F. Krause, 21 July 2005 (DZUB 3752); 1 female, same collector and date (DZUB 3753); Sítio Buriti, 1 female, without collector, 1 April 1994 (DZUB 74); close to Três Vendas, 1 female, without collector, 17 April 2001 (DZUB 1145); Minaçu, U.H.E. Serra da Mesa [13°51’S, 48°21’W], 3 females (IBSP ref 80248); Padre Bernardo [15°10’S, 48°17’W], 1 male, J. Ribeiro, 1 January 2001 (DZUB 1033); 3 males, J. R. Pujol, 23 January 2003 (DZUB 2114, 2125, 2126); 1 male, R. Morales, 15 December 2004 (DZUB 3421); Pirenópolis [15°51’S, 48°57’W] comunidade Omni, 1 female, P. C. Motta, 3 November 2017 (DZUB 8858); 1 female, same collector and date (DZUB 8866); Planaltina de Goiás [15°27’S, 47°36’W], 1 female, M. M. Rodrigues, 6 March 2010 (DZUB 5842); São Domingos, Parque Estadual da Terra Ronca, Passa Três cave, 1,600 m from the cave [13°24’S, 46°19W], 1 male, F. P. Franco, 3 September 2000 (IBSP 10743); Córrego cave, Malhada, 1 female, E. Trajano, 19 March 1985, ref. 48569 (IBSP 4865 A); Valparaíso de Goiás [16°04’S, 47°58’W], 1 male, without collector, 26 January 1998 (DZUB 308); Minas Gerais: Belo Horizonte [19°55’S, 43°56’W], 1 female, A. M. Júnior, ref. 23283 (IBSP 6354); Belo Horizonte, Alto Santa Lucia, 1 male, C. S. Azevedo, 19 December 2004 (IBSP 11196); Campus UFMG, 1 male, April 2001 (IBSP 11178); Brumadinho, Condomínio Retiro das Pedras [20°8’S, 44°12’W], 1 male, L. Araújo, 16 March 2002 (IBSP 11190); Cabeceira Grande [16°01’S, 47°05’W], 1 female, B. B. Rocha, 28 January 2009 (DZUB 5125); 1 female, same collector and data (DZUB 5126); Candeias [20°46’S, 45°16’W], 1 male, J. M. Castro, 8 April 1969, ref. 2241 (IBSP 3909); Capetinga [20°37’S, 47°3’W], 1 male, E. C. Sapilho, 2 March 2000, ref. 85865 (IBSP 8050); Cascalho Rico [18°34’S, 47°52’W], 1 female, Serraria Guarani Ltda, ref. 51391 (IBSP 4913); Centralina [18°35’S, 49°12’W], 1 male, V. L. C. Brites, ref. 61981 (IBSP 7034); Corinto [18°21’S, 44°37’W], 2 males, C. E. Souza, 4 March 1977, ref. 20121 (IBSP 4236); Couto de Magalhães [18°4’S, 43°28’W], 1 male, F. A. Chiaffitel, 2 March 1974 (IBSP 2595); Curvelo [18°45’S, 44°25’W], 1 male, A. G. Carmundo, 28 July 1961 (IBSP 3563 A); Francisco Sá [16°28’S, 43°29’W], 1 female, S. D’Angelo, 29 August 1988, on urban area (MNRJ 12931); Fronteira [20°16’S, 49°12’W], 1 male, J. H. Vieira, February 1983, ref. 46008 (IBSP 4811); Furnas [20°40’S, 46°19’W], 1 male, C. Leonel, ref. 70953 (IBSP 6432); 1 male, F. A. Miughiani, 3 February 1976 ref.17715 (IBSP 4276); Grão Mongol [16°33’S, 42°53’W], 1 male, S. Astorino, ref. 80391 (IBSP 6447); Parque Estadual de Grão Mongol (16°30’17.40”S, 42°49’31.99W), 1 male, F. Leal, 08 March, 2014 (MNRJ 7767); Janaúba [15°48’S, 43°18’W], 1 male, F. Ramos, 16 March 1949 (IBSP 1924); Januária, Remansinho, Rio São Francisco [15°28’S, 44°22’W], 1 immature male, L. Cristina, 6 November 2004 (IBSP11187); Jequitaí [17°13’S, 44°26’W], 1 male, M. R. Silva, ref. 50823 (IBSP 6374); Joanésia [19°10’S, 42°40’W], 1 female, T. Viana, 26 February 2000 (IBSP 11176); João Pinheiro [17°44’S, 46°10’W], 1 male, A. A. Domingues, 13 March 1985, ref. 48563 (IBSP 4862); Monte Carmelo [18°43’S, 47°29’W] rodovia Monte Carmelo – Coromandel, 1 female, Licio col, 9 March 1993 (DZUB 65); Montes Claros [16°43’S, 43°51’W], 1 male, D. S. Nunes, January 2005, ref. 94410 (IBSP 11246); 2 males, W. Ferreira, April 1984, ref. 46261 (IBSP 4815); Nazareno [21°13’S, 44°36’W], 1 male, (IBSP ref. 84247); Passos [20°43’S, 46°36’W], 1 male, J. C. Ferro, ref. 56100 (IBSP 6392); Paracatú [17°13’S, 46°52’W], 1 male (IBSP ref. 75249); Patrocínio, Serra do Salitre [18°56’S, 46°59’W], 1 male, C. de F. G. G. Pedron, 12 March 2001, ref. 87301 (IBSP 8734); Pedro Leopoldo, Baú cave [19°37’S, 44°2’W], 1 male, D. de Souza (IBSP 11194); Pirapora [17°20’S, 44°56’W], 1 male, 11 February 2000 (IBSP 11264); Prudente de Moraes, Fazenda Capão das Éguas [19°28’S, 44°5’W], 1 male, E. S. S. Alvares (IBSP 11182); Santana do Riacho, Parque Nacional da Serra do Cipó [19°10’S, 43°52’W], 1 male, A. J. Santos, 21 February 1994 (IBSP 8684); Parque Nacional da Serra do Cipó, Alto Bandeirinhas [19°3’S, 43°39’W], 1 male, E. S. S. Alvares, 22 December 2000, em campo rupestre (IBSP 11189); Santo Antonio do Monte [20°5’S, 45°17’W], 1 male, P. R. F. Espindola, ref. 64747 (IBSP 6412); 1 male, same collector, ref. 64554 (IBSP 6405); 1 male, same collector, ref. 64554 (IBSP 6406); São João Del Rey [21°7’S, 44°15’W], 1 female, O. A. Righetti, 2 January 1970, ref. 4135 (IBSP 4026); São Romão [16°25’S, 45°13’W], 1 male, F. Pitanguy, 18 February 1975, ref. 15747 (IBSP 4153); São Thomé das Letras [21°43’S, 44°59’W], 1 male, R. Bertani, 1987 (IBSP 7908); Três Corações [21°41’S, 45°15’W], 1 female, no collector, 13 May 1977, ref. 20853 (IBSP 4397); Uberaba, UHE Água Emendada [20°4’S, 48°0’W], 1 male, H. Amado, 3 March 1975, ref. 15832 (IBSP 4122); 2 females 1 immature male (IBSP 4161); Uberlândia [18°54’S, 48°16’W], 1 male, C. D. Aglio, ref. 52930 (IBSP 6377); 1 female, F. Bauabi, 19 March 1992, ref. 67671 (IBSP 7963); 1 female, L. F. Bandeira, 1 March 1997 (IBSP 8539); 1 male (bulb lacking), F. Bauabi, ref. 67671 (IBSP 6423); 1 male, same collector, ref. 67671 (IBSP 6424); 1 male, P. C. Motta, 5 March 1991 (DZUB 30); Unaí [16°21’S, 46°53’W], 1 male, P. C. Motta, 18 January 2003 (DZUB 2070), 1 male, same collector and data (DZUB 2069); Várzea da Palma [17°35’S, 44°44’W], 1 male, L. H. Tencc, ref. 58248 (IBSP 6396); São Paulo: Buritizal [20°11’S, 47°42’W], 1 male, G. N. Villela, ref. 67572 (IBSP 6421); São Paulo: Cotia [23°36’S, 46°54’W], 1 male, L. E. Vilalta, ref. 72652 (IBSP 6435); Guarani d’Oeste, U.H.E. Água Vermelha [19°51’S, 50°18’W], 1 female, G. Puorto, 20 July 1978, ref. 23316 (IBSP 8395); São Paulo [23°33’S, 46°38’W] 1 female, J. A. Vieira, ref. 64670 (IBSP 6407); São Paulo, Chácara Flora, 1 male, M. Castelhano, 4 September 1985, ref. 41747 (IBSP 4882); Valinhos [22°58’S, 46°59’W], 1 female, E. R. Jesus, ref. 71309 (IBSP 6434).
Description. Male (IBSP 8622). Carapace 21.29 long, 19.85 wide, chelicera 10.41. Legs (femur, patella, tibia, metatarsus, tarsus, total): I: 20.14, 9.98, 15.45, 15.94, 8.79, 70.30. II: 18.53, 9.49, 14.15, 14.11, 8.23, 64.51. III: 16.28, 8.63, 12.55, 15.65, 7.78, 60.89. IV: 19.78, 8.97, 15.63, 21.70, 8.72, 74.80. Palp: 12.86, 7.20, 10.59, –, 4.55, 35.20. Midwidths: femora I–IV = 3.89, 3.76, 5.04, 3.77, palp = 2.84; patellae I–IV = 4.03, 3.81, 4.01, 3.95, palp = 3.04; tibiae I–IV = 3.37, 2.84, 3.29, 2.95, palp = 3.40; metatarsi I–IV = 1.89, 1.87, 1.90, 1.81; tarsi I–IV = 1.75, 1.68, 1.59, 1.62, palp = 2.85. Abdomen 19.60 long, 14.62 wide. Spinnerets: PMS, 2.19 long, 0.93 wide, 0.56 apart; PLS, 3.06 basal, 2.63 middle, 4.15 distal; midwidths 1.36, 1.11, 0.83, respectively. Carapace: 1.07 longer than wide; cephalic area moderately raised, thoracic striae conspicuous. Fovea 3.57 wide. Eyes and eye tubercle: Tubercle 0.91 high, 2.06 long, 2.69 wide. Clypeus 0.54 wide. Anterior eye row procurved, posterior slightly recurved. Eye sizes and inter-distances: AME 0.61, ALE 0.70, PME 0.42, PLE 0.60, AME–AME 0.45, AME–ALE 0.40, AME–PME 0.17, ALE–ALE 1.89, ALE–PME 0.53, PME–PME 1.34, PME–PLE 0.17, PLE–PLE 2.00, ALE–PLE 0.32, AME– PLE 0.62. Eye group 2.70 wide, 1.44 long. Maxilla: Length 6.26, width 3.81. Cuspules: ca. 257 spread over ventral inner heel. Labium: 2.73 long, 3.76 wide, with ca. 104 cuspules spaced by ca. one diameter from each other on the anterior third center. Chelicerae: basal segment with 14 teeth in row on promargin and denticles in basal area. Sternum: 8.96 long, 8.14 wide.
Legs: leg formula: I = IV II III. Length leg IV to I: 1.06. Stridulatory apparatus: Retrolateral maxilla: a few inconspicuous spiniform setae on upper basal area, interspersed with plumose setae, middle and lower areas lacking spiniform setae (Figs 261 ─262). Leg I prolateral coxa: confluence of sutures region with several reddish, acicular stridulatory setae (Figs 263─264). Region above sutures with plumose setae and some curved spiniform setae. Region below sutures covered mostly by plumose setae having no incrassate base and a few setae with slightly incrassate base (Fig. 265). Retrolateral face of coxae I─III lacking spiniform setae. Coxa II prolateral face with same apparatus as in leg I; in legs III and IV, the stridulatory setae are very slender. Scopula: Tarsi I–IV fully scopulate. Metatarsi I–II fully scopulated; III 1/2, IV 1/3 distal. Metatarsus IV divided by row of 2–3 setae. Spination: palp: femur p0-0-1, patella 0, tibia v1-1-0, p3-2-1; leg I: femur p0-0-1, patella 0, tibia v2-0-1ap, p0-1-0, metatarsus 0; leg II: femur p0-0-1, patella 0, tibia v2-1-3ap, p0-1-1, metatarsus v0-1-1; leg III: femur p0-0-1, r0-0-1, patella 0, tibia v1-2-2ap, p1-1-1, r1-1-1, metatarsus v2-2-2ap, p1-1-1, r1-0-1; leg IV: femur r0-0-1, patella 0, tibia v0-2-7(3ap), p1- 1-2, r1-1-1, metatarsus v18(3ap), p0-1-1, r1-1-1. Urticating setae: Position, type and length range: MA, I, 0.34–0.41; LA, I, 0.41–0.48; MM, III, 0.65–0.70, some of type I, 0.55–0.59; LM, I, 0.50–0.56; MP, III, 0.78–0.83; LP, III, 0.72–0.84.
Palp (Figs 255 –257). Palpal bulb pyriform, embolus slightly shorter than tegulum length, slightly flattened laterally at distal region, apex short and thick. Prolateral keels present. PS forming embolus edge distally. A short. R sharp, pronounced posteriorly, with a series of conspicuous denticles on its edge. SA well developed. Bifid tibial spur (Figs 258─259) with processes originating from common base, both straight, retrolateral longest and with a curvature at its distal portion. A single, flattened, rhomboidal spine contiguous to the internal upper face of retrolateral process, and four such spines at the internal face of prolateral process (Figs 258─259). Metatarsus I curved at its basal third, when folded touches apex of retrolateral process.
Color pattern (in alcohol): Carapace and chelicerae black. Carapace bordered with scattered light brown long setae, chelicerae with some long light brown setae. Legs black with sparse light brown long setae. Coxae of legs ventrally and sternum reddish brown, covered with short dark brown setae. Labium and maxillae reddish brown. Abdomen black with abundant long reddish setae. Femora, patellae, tibiae and metatarsi of legs and palp with discrete light stripes. Apex of leg segments with discrete whitish rings on apex.
Description. Female (IBSP 4865C). Carapace 27.15 long, 24.76 wide, chelicera 15.16. Legs (femur, patella, tibia, metatarsus, tarsus, total): I: 20.05, 11.75, 14.58, 13.34, 8.01, 67.73. II: 17.99, 10.72, 12.20, 12.71, 6.90, 60.52. III: 16.16, 10.18, 11.07, 13.78, 7.24, 58.43. IV: 19.78, 10.13, 14.52, 18.73, 7.58, 70.74. Palp: 14.31, 8.74, 10.16, –, 8.67, 41.88. Midwidths: femora I–IV = 4.56, 4.56, 5.45, 4.34, palp = 3.52; patellae I–IV = 4.76, 4.83, 4.68, 4.60, palp = 4.08; tibiae I–IV = 4.14, 3.78, 3.95, 3.58, palp = 3.36; metatarsi I–IV = 2.94, 2.62, 2.60, 2.37; tarsi I–IV = 2.71, 3.05, 2.75, 2.90, palp = 2.85. Abdomen 31.81 long, 21.14 wide. Spinnerets: PMS 2.95 long, 1.46 wide, 1.26 apart; PLS, 5.08 basal, 3.67 middle, 5.24 distal; midwidths 2.13, 1.95, 1.33, respectively.
Carapace: 1.10 longer than wide; cephalic area noticeably raised, thoracic striae conspicuous. Fovea: 4.49 wide. Eyes and eye tubercle: Tubercle 1.09 high, 2.61 long, 3.37 wide. Clypeus 0.64 wide. Anterior eye row procurved, posterior slightly recurved. Sizes and inter-distances: AME 0.68, ALE 0.73, PME 0.54, PLE 0.64, AME–AME 0.68, AME–ALE 0.54, AME–PME 0.30, ALE–ALE 2.51, ALE–PME 0.60, PME–PME 1.71, PME–PLE 0.12, PLE–PLE 2.43, ALE–PLE 0.52, AME–PLE 0.79. Eye group 3.32 wide, 1.73 long. Maxilla: Length 8.37, width 5.87. Cuspules: ca. 278 spread over ventral inner heel. Labium 3.75 long, 5.29 wide, with 139 cuspules spaced by ca. one diameter from each other on the anterior third center. Chelicera: basal segment with 12 teeth in row on promargin and denticles on basal area. Sternum: 11.87 long, 10.75 wide.
Legs: leg formula: I = IV II III. Length leg IV to I: 1.04. Stridulatory apparatus: Retrolateral maxilla: a few inconspicuous spiniform setae on distal upper area, interspersed with plumose setae, middle and lower areas lacking spiniform setae (Figs 266 ─267). Leg I prolateral coxa: confluence of sutures region with several reddish, acicular stridulatory setae (Figs 268─269). Region above sutures with plumose setae and some curved spiniform setae. Region below sutures covered with plumose setae having slightly incrassate base (Fig. 270). Coxa I retrolateral face covered with plumose setae and a group of small spiniform setae on upper region. Retrolateral face of coxae II–III lacking spiniform setae. Coxa II prolateral face with same apparatus as in leg I; in legs III and IV, the stridulatory setae are very slender. Scopula: Tarsi I–IV fully scopulate. Metatarsi I–II fully scopulated; III 1/2, IV 1/3 distal. Metatarsus IV divided by row of 3–4 setae. Spination: palp: femur p0-0-1ap, patella 0, tibia v1-1-3ap, p0-1-0; leg I: femur 0, patella 0, tibia v0-1-2ap, metatarsus v0-0-1ap; leg II: femur p0-0-1, patella 0, tibia v0-1-1ap, p0-1-0; metatarsus v1-0-2ap; leg III: femur r0-0-1, patella 0, tibia v1-2-2ap, p1-1-1, r1-1-1, metatarsus v4-1-4ap, p1-0-1, r0- 1-1; leg IV: femur r0-0-1, patella 0, tibia v0-1-4ap, p0-1-0, r0-1-1, metatarsus v21(4ap), p0-1-0, r0-1-1. Urticating setae: Position, type and length range: MA, I, 0.28–0.31; LA, I, 0.31–0.32; MM, III, 0.67–0.70; LM, I, 0.40–0.46, III 0.58–0.65, several intermediates between I and III; MP, III, 0.66–0.75; LP, I, 0.41–0.50, III, 0.57–0.68.
Spermathecae (Fig. 260): Two very short spermathecae separated by heavily sclerotized short area, spermathecal stalk slightly narrower than somewhat square spermathecal bulb.
Color pattern (in alcohol): As in male.
Distribution. Brazil, from the northern state of Goiás and southwestern state of Bahia in the north to southern state of Minas Gerais and extreme north of state of São Paulo in the south (Figs 283 ─284). Scattered records for the city of São Paulo and near localities (Figs 283 ─284) are questionable (see distribution and notes on natural history of Lasiodora above).
Natural history. Lasiodora franciscana n. sp. occurs in areas of the biome Cerrado, but, as discussed above for L. sertaneja n. sp., Lasiodora species occurring in open environments seem to live in small patches of forested areas, such as riparian or hillside forests. I found a female inside a termite mound on a forest patch surrounded by Cerrado vegetation in Catalão, state of Goiás.
The effects of the venom of Lasiodora sp. (now identified as L. franciscana n. sp.) on Ca2+ and Na+ channels has been studied by Kushmerick et al. (2001). The effects of the venom of the same species on the isolated rat heart was studied by Kalapothakis et al. 2003. Toxins expressed by the venom gland (Vieira et al. 2004) and a vasodilator component (Horta et al. 2013) were isolated from the venom of this species. These authors deposited a voucher specimen in IBSP which was herein examined allowing to confirm the identification.
description: Published as part of Bertani, Rogério, 2023, Taxonomic revision and cladistic analysis of Lasiodora C. L. Koch, 1850 (Araneae, Theraphosidae) with notes on related genera, pp. 1-116 in Zootaxa 5390 (1) on pages 93-102, DOI: 10.11646/zootaxa.5390.1.1, http://zenodo.org/record/10434516