Sylvia M. Lucas

Instituto Butantan, San Paulo, São Paulo, Brazil

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Publications (23)24.24 Total impact

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    Zoologia (Curitiba Impresso) 08/2012; 29(4):375-379. · 0.66 Impact Factor
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    ABSTRACT: The study of type material and specimens of A. gomesiana of several Brazilian spider collections offered us the possibility to redescribe this species and consider synonyms of the first one of the following: A. violacea, A. pugnax, and A. aurita. Acanthoscurria cunhae and A. melanotheria are considered Species inquirendae, the types were not located, and the descriptions are not enough for identification of similar ones. We considered as valid only two species from the southeast of Brazil: A. paulensis and A. gomesiana. The distribution range of A. gomesiana is enhanced in the state of Minas Gerais, Brazil. Some data on natural history and phenology are presented.
    International Journal of Zoology 01/2012; 2012.
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    Sylvia M. Lucas, Rafael P. Indicatti
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    ABSTRACT: Two new species of Lycinus Thorell, 1894 are described in this paper, L. portoseguro sp. nov. and L. choros sp. nov. Lycinus portoseguro sp. nov. is based on male and female from Porto Seguro, state of Bahia, Northeastern Brazil. This is the first record of a species of Lycinus from Brazil. Males of L. portoseguro sp. nov. differ from the remaining species of the genus by the presence of a retrolateral megaspine on tibia I and by the short embolus. Females can be distinguished by the scopulae divided on tarsi II. Lycinus choros sp. nov. is based on one male from La Serena, IV Region (Coquimbo), Chile. It is the eighth species described from this country. L. choros sp. nov. resembles L. epipiptus (Zapfe, 1963) by the longer embolus and differs from it by the short palpal tibia and by the scopulae undivided on male tarsi I-II.
    Zoologia (Curitiba Impresso) 01/2010; 27(3). · 0.66 Impact Factor
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    ABSTRACT: Até a presente data, o gênero Neostothis Vellard é conhecido somente pela espécie tipo Neostothis gigas Vellard 1925, descrita com base em um macho e algumas fêmeas da Reserva Biológica do Alto da Serra de Paranapiacaba, Santo André, São Paulo, Brasil. Os exemplares-tipo, que deveriam estar depositados na coleção do Instituto Butantan, estão perdidos. Exemplares machos e fêmeas de N. gigas, coletados na localidade-tipo, permitiram estabelecer um neótipo e melhorar o conhecimento do gênero e da espécie.
    Journal of Arachnology 01/2009; · 0.73 Impact Factor
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    ABSTRACT: The spider family Theraphosidae Thorell, 1870 includes, to date, 906 species distributed throughout 112 genera (PLATNICK 2008). Of these, 57 are recorded from the Neotropical region with almost 500 species distributed throughout South America. These spiders are commonly known as "tarantulas" and are trade as pets. For most of these species, the biology, ecology and systematics are very poorly known (COSTA & PEREZ-MILES 1992, 2002, DIAS & BRESCOVIT 2003). In South America, the family is represented by three sub-families: Aviculariinae, Ischnocolinae and Theraphosinae. Theraphosinae and Ischnocolinae are the largest, comprising 52 genera. Aviculariinae includes only five genera: Avicularia Lamarck, 1818, Ephebopus Simon, 1892, Iridopelma Pocock, 1901, Pachistopelma Pocock, 1901 and Tapinauchenius Ausserer, 1871. Redescr Redescr Redescr Redescr Redescription and notes on the natur iption and notes on the natur iption and notes on the natur iption and notes on the natur iption and notes on the natural histor al histor al histor al histor al history of the arbor y of the arbor y of the arbor y of the arbor y of the arboreal tar eal tar eal tar eal tar eal tarantula antula antula antula antula Iridopelma Iridopelma Iridopelma Iridopelma Iridopelma seladonium seladonium seladonium seladonium seladonium (Ar (Ar (Ar (Ar (Araneae: aneae: aneae: aneae: aneae: T T T T Ther her her her hera a a a aphosidae: phosidae: phosidae: phosidae: phosidae: A A A A Avicular vicular vicular vicular viculariinae) iinae) iinae) iinae) iinae)
    Revista Brasileira de Zoologia 01/2008; 25(4):728-736. · 0.44 Impact Factor
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    ABSTRACT: Six mygalomorph spiders species belonging to two families, were collected in the Centro de Pesquisa e Conservação da Natureza Pró-Mata, São Francisco de Paula, state of Rio Grande do Sul, Brazil. Five of those species, five are new. Microstigmatidae: Xenonemesia araucaria sp. nov., males differ from those of X. platensis Goloboff, 1988 and X. otti Indicatti, Lucas & Brescovit, 2007 by the curved and very long embolus in the male palp. Females differ from the remaining species of the genus in the seminal receptacle very long and sinuous or twisted. Nemesiidae: Acanthogonatus ericae sp. nov. – males resemble those of A. tacuariensis (Pérez-Miles & Capocasale, 1982) and A. quilocura Goloboff, 1995 by the serrated, curved and long embolus but are distinguished by the presence of a flange on the apex of the embolus. Females differ from the remaining Acanthogonatus by the short copulatory ducts, arising from the apex of the basal dome. Stenoterommata arnolisei sp. nov. is distinguished from the remaining species of the genus by the large sub-apical area of bulb, with a great number of keels, extending to the median region in the male palp and by the long copulatory ducts and spermathecae arising from internal border of basal dome in the female genitalia. S. grimpa sp. nov.: males resemble those of S. arnolisei sp. nov. by the shape of the palpal bulb and by the short embolus, but differ in the keels, restricted to the apical region. Females differ from remaining Stenoterommata by the presence of two spermathecae in the rounded fused basal dome. S. curiy sp. nov.: males resemble those of S. grimpa sp. nov. by the shape of palpal bulb and the very short embolus, but differ by the translucid keels restricted to the larger distal region. The presence of S. palmar Goloboff, 1995 is confirmed for Brazil. Males of S. palmar are distinguished from the remaining species of the genus by the long, slender and slightly distally curved embolus. Females are distinguished by the single spermathecae arising from the basal third or median area of the long and triangular basal dome. All spiders were collected with pitfall trapping at six distinct areas (two Araucaria forest areas, two secondary forests and two Pinus spp. Silvicultural plantations) over a period of 20 months. Abundance data between areas was compared for S. arnolisei sp. nov. and X. araucaria sp. nov. based on the mean catches of spiders in each area. No clear habitat preference was shown for each of the species, suggesting broad habitat tolerances. Phenological data were obtained through the abundance in each trapping period; results suggest an overwintering reproductive pattern for S. arnolisei sp. nov. and a spring-summer pattern for X. araucaria sp. nov.
    Revista Brasileira de Zoologia 01/2008; 25(3). · 0.44 Impact Factor
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    ABSTRACT: Xenonemesia otti n. sp. (Microstigmatidae) is described from Viamão and X. platensis Goloboff newly recorded for the first time from Caçapava do Sul, both in the State of Rio Grande do Sul, Brazil.
    Zootaxa 08/2007; 1485(2007):43–49. · 1.06 Impact Factor
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    ABSTRACT: The genus Tmesiphantes Simon, 1892 is revised. The type-species, T. nubilus Simon, 1892, is redescribed and three new species are described from the state of Bahia, Brazil: T. amadoi sp. nov., T. bethaniae sp. nov. and T. caymmii sp. nov. In addition, Tmesiphanthes physopus Mello-Leitão, 1926 and T. minensis Mello-Leitão, 1943 are transferred to Plesiopelma Pocock, 1901. T. chickeringi is considered species inquirenda.
    Revista Brasileira de Zoologia 01/2007; 24(4). · 0.44 Impact Factor
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    ABSTRACT: A new species of the genus Mecicobothrium is described, M. baccai n. sp., from Blumenau, State of Santa Catarina. This is the first record of the family Mecicobothriidae in Brazil.
    Zootaxa 03/2006; 1326:45-56. · 1.06 Impact Factor
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    Sylvia M. Lucas, Rafael P. Indicatti
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    ABSTRACT: The genus Psalistopoides Mello-Leitão, 1934, previously a junior synonym of Pselligmus Simon, 1892, is revalidated. Psalistopoides fulvimanus Mello-Leitão, 1934 is redescribed and new distribution records are presented. In addition, P. emanueli sp. nov. is described from the State of Paraná, Brazil.
    Revista Brasileira de Zoologia 01/2006; 23(2). · 0.44 Impact Factor
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    Rafael Prezzi Indicatti, Sylvia Marlene Lucas
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    ABSTRACT: The new genus Longistylus of the family Nemesiidae is described from the Brazilian Cerrado. Longistylus ygapema n. sp. is recognized by the male palp with a globose bulb and a slender embolus, two times longer the palpal tibia, slightly curved retrolaterally and with no keels.
    Zootaxa 09/2005; 1088:11-16. · 1.06 Impact Factor
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    Rafael Prezzi Indicatti, Sylvia Marlene Lucas
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    ABSTRACT: The new genus Longistylus of the family Nemesiidae is described from the Brazilian Cerrado. Longistylus ygapema n. sp. is recognized by the male palp with a globose bulb and a slender embolus, two times longer the palpal tibia, slightly curved retrolaterally and with no keels.
    Zootaxa 08/2005; 1088:11-16. · 1.06 Impact Factor
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    ABSTRACT: The venom of the scorpion Tityus costatus contains peptides toxic to humans but scarce information on their structure and function is available. Here, we report the separation of 50 different components by high performance liquid chromatography and the identification of approximately 90 distinct components by mass spectrometry analysis, with molecular weights varying from 413 to 45482 atomic mass units. Four peptides were fully sequenced: (i) a butantoxin-like peptide that blocks Shaker K+ channel; (ii) an insect toxin-like peptide; (iii) a scorpine-like peptide, and a short heptapeptide of unknown function. Fifteen peptides were directly sequenced at the N-terminal region, among which are components toxic to mice. A cDNA library was constructed and 13 clones were isolated and sequenced. Some of these peptides and genes are similar to other known scorpion toxins. Based on these results, stings by scorpions of the species Tityus costatus should be taken with caution by medical doctors.
    Toxicon 04/2005; 45(3):273-83. · 2.92 Impact Factor
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    ABSTRACT: Prorachias Mello-Leitão, 1924 is known only from its type-species Prorachias bristowei Mello-Leitão, described based on a female from the state of Rio de Janeiro, Brazil. The description is very short and incomplete and some important characters, such as the shape of the spermathecae, are omitted. The type specimen, that should be deposited in the collection of the Museu Nacional do Rio de Janeiro, was not located and is probably lost. Nevertheless, specimens collected by the project “Biodiversity of Arachnida and Myriapoda of the State of São Paulo” and deposited in the collection of the Butantan Institute enabled to improve the diagnosis of the genus as well as describe the species’ male. In addition, notes on the biology are presented and the distribution range is extended to the states of Goiás, Minas Gerais and São Paulo.
    Biota Neotropica 01/2005; 5. · 0.66 Impact Factor
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    Celina Yukari Fukami, Sylvia Marlene Lucas
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    ABSTRACT: The study of type and non-type material of species of the genus Idiops Perty, 1833, Southeastern Brazil, enabled to enhance the taxonomical knowledge of these species. Thus, Idiops montealegrensis Soares, 1944 is synonymized with Idiops camelus Mello Leitão, 1937; Idiops germaini Simon, 1892 described from Rio de Janeiro, Brazil, is confirmed as a valid species and Idiops pirassununguensis n. sp. is described from Pirassununga, São Paulo, Brazil. In addition, Idiops nilopolensis Mello Leitão, 1923, from Nilópolis, Rio de Janeiro is considered species inquirenda and new records are presented for Idiops camelus.
    Biota Neotropica 01/2005; 5. · 0.66 Impact Factor
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    ABSTRACT: Rhopalurus guanambiensis n. sp. is described from Guanambi, state of Bahia, northeastern Brazil. The new species is related to R. lacrau Lourenço & Pinto-da-Rocha, 1997 (Itaeté, state of Bahia) by having the same number of oblique rows of granules on the movable finger of the pedipalpal chela, same number of keels on metasomal segments I, III, IV, V and similar body size; it is related to R. crassicauda Di Caporiacco, 1947 (state of Roraima) by having the same number of keels on metasomal segments I, II, IV and V, last two metasomal segments darker colored and enlarged, and similar body size. It is distinguished from R. lacrau by the different color of the carapace, meso and metasomal segments IV-V, higher number of pectinal teeth and metasomal segment II with ten carinae; and from R. crassicauda by the lower number of oblique rows of granules on the movable finger of the pedipalp chela, metasomal segment III with eight carinae; segment V with vestigial keels and by the telson with a strong subaculear tubercle. The males of R. guanambiensis are distinguished from the female by having more robust pedipalp chelae and by the enlarged metasomal segments IV and V. This species raises the total number of species of the genus Rhopalurus in Brazil to nine.
    Biota Neotropica 01/2005; 5. · 0.66 Impact Factor
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    ABSTRACT: A new species of the genus Tityus C. L. Koch, 1836 (Scorpiones, Buthidae) from the state of Bahia, Brasil. A new species of the genus Tityus C.L.Koch, 1836 (Scorpiones, Buthidae) is described from Anagé (36º44'14"S - 08º08'41"W) and Poções (31º47'14"S - 21º55'40"W), state of Bahia, Brazil. Tityus aba n. sp. belongs to the Tityusbahiensis group Lourenço, 2002 characterized by medium sized specimens, ranging from five to seven cm in length, reddish-brown or brownish coloration patterns and basal middle lamellae of female pectines not dilatated in most species. Within the group, this species is close to the Tityus stigmurus complex and is more related to Tityusstigmurus (Thorell, 1876), Tityusmartinpaechi Lourenço, 2001 and Tityus melici Lourenço, 2003. T. aba n. sp. is distinguished from T. stigmurus by the color of the prossoma, which is almost black, by the higher number of pectinal teeth and by the larger body size. It is distinguished from T. martinpaechi mainly by the absence of dark spots on pedipalps and legs and also by the larger size of the specimens, and from T. melici , by the absence of dark confluent spots over the tergites and longitudinal strip between ventral keels of segments I to IV of the metasoma. Tityus aba n. sp. includes medium to large sized scorpions ranging from 6.0 to 7.65 cm, yellowish brown coloration pattern with an almost black carapace, with three longitudinal dark strips over the tergites, and with the dorsal medial keels of segment II to IV with a larger terminal granule that becomes spinoid on segments III and IV. The males are distinguished from the females by the slender pedipalps and more dilatated metasomal segments IV and V.
    Biota Neotropica 01/2005; 5. · 0.66 Impact Factor
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    ABSTRACT: This is the first record of Neocteniza australis Goloboff, 1987 for the Brazilian fauna. Four males were collected in the Morro do Diabo State Park (Teodoro Sampaio, São Paulo, Brazil).
    Revista Ibérica de Aracnologia. 06/2004; 9:30.
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    Candido D. M, S. Lucas
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    ABSTRACT: This work presents the experience of the Laboratory of Arthropods at Instituto Butantan, which maintains scorpions in captivity in order to obtain the venom used in the production of anti-arachnid serum. Between 1993 and 2000, the laboratory received 24.781 specimens of Tityus serrulatus in order to obtain poison for the production of anti-scorpion serum. In the first extraction, performed by electrical stimulation, the animals gave an average quantity of 0.4 mg venom per specimen. Animal acquisition and involved professional safety are considered. In addition, the captivity, handling and feeding techniques are described, as well as the method and equipment used for venom extraction. It shows the importance of regular campaigns, offering information to the general population in order to motivate these to catch and send alive scorpions to the Institute to assuring a regular entrance of scorpions.
    Journal of Venomous Animals and Toxins including Tropical Diseases 01/2004; · 0.55 Impact Factor
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    Sylvia Lucas
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    ABSTRACT: The text follows the history of the Butantan Institute's Arthropod Laboratory from its foundation to the mid-1967 retirement of Wolfgang Bücherl, one of Brazil's greatest arachnologists. Information is drawn from several sources: annual reports by Vital Brazil, director of the Institute, from the periods 1900-1919 and 1924-1927; works published as part of Memórias do Instituto Butantan; and my personal experience with the Institute's researchers, technical staff, and contributors, as Bücherl's assistant starting in 1961.
    História Ciências Saúde-Manguinhos 12/2003; 10(3):1025-1035.

Publication Stats

114 Citations
24.24 Total Impact Points

Institutions

  • 2003–2012
    • Instituto Butantan
      San Paulo, São Paulo, Brazil
  • 2009
    • Federal Rural University of Rio de Janeiro
      Seropédica, Rio de Janeiro, Brazil
  • 1993–2005
    • Instituto Vital Brazil
      SRA, Rio Grande do Sul, Brazil