Sylvia M. Lucas


Bibliography

Revalidation of Dolichothele Mello-Leitão and notes on Hapalotremus Simon (Araneae, Mygalomorphae, Theraphosidae)

Sylvia M. Lucas, Rafael Prezzi Indicatti ,2015

Hapalotremus exilis (Mello-Leitão, 1923) and Hapalotremus muticus (Mello-Leitão, 1923), previously considered as nomina dubia are here revalidated through the examination of the holotypes. Dolichothele Mello-Leitão, 1923 is revalidated and their type species, Dolichothele exilis Mello-Leitão, 1923 is restored. Goniodontium Mello-Leitão, 1923 and Oligoxystre Vellard, 1924 are considered junior synonyms of Dolichothele. Hapalotremus muticus and Oligoxystre caatinga Guadanucci, 2007 are considered junior synonyms of D. exilis. All species of Oligoxystre are transferred to Dolichothele. Cyclothoracoides Strand, 1929, currently a junior synonym of Hapalotremus Simon, 1903, is here considered a junior synonym of Homoeomma Ausserer, 1871.

http://www.tandfonline.com/doi/abs/10.1080/01650521.2015.1103553

A new species of Tmesiphantes (Araneae, Theraphosidae) from the state of Pará, Brazil

Hector M. O. Gonzalez-Filho, Antonio Domingos Brescovit, Sylvia M. Lucas ,2014

A new species of Tmesiphantes Simon, 1892, T. aridai sp. nov., is described and illustrated based on three males and three females collected at the Floresta Nacional do Tapajós, Santarém, state of Pará, Brazil. Males can be distinguished from T. perp Guadanucci & Silva, 2012 by the palpal bulb with an inconspicous tegular basal projection, but presenting a very slender embolus with shorter keels not extending to the tip, and from T. nubilus Simon, 1892 by the tibial apophysis with two similarly sized branches, the prolateral one with a strong spine on the retrolateral margin. Females resemble T. nubilus by the aspect of the seminal receptacle but the constriction near the apex is less evident and apex shape is irregular. The new species represents the first record of Tmesiphantes from the Amazonian region, bringing the total number of species to eight.

On the Brazilian Amazonian species of Acanthoscurria (Araneae: Theraphosidae)

Felipe dos S. Paula, Ray Gabriel, Rafael Prezzi Indicatti, Antonio Domingos Brescovit, Sylvia M. Lucas ,2014

In this study the Brazilian Amazonian species of Acanthoscurria Ausserer, 1871 are redescribed: A. geniculata (C.L. Koch, 1841), A. tarda Pocock, 1903, A. juruenicola Mello-Leitão, 1923, A. theraphosoides (Doleschall, 1871). Acanthoscurria simoensi Vol, 2000 and A. insubtilis Simon, 1892, previously known from French Guyana and Bolivia, respectively, are recorded for Brazil by the first time. The females of these two species are described for the first time and a new species, A. belterrensis sp. nov., is described from Belterra, Pará, Brazil. In addition, four synonymies are established: A. transamazonica Piza, 1972 as junior synonym of A. geniculata; A. ferina Simon, 1892 and A. brocklehursti F.O.P.-Cambridge, 1896 of A. theraphosoides; and A. xinguensis Timotheo da Costa, 1960 of A. juruenicola. Acanthoscurria belterrensis sp. nov. resembles A. gomesiana Mello-Leitão, 1923 by the color pattern and structure of sexual organs. The male can be distinguished by the less curved embolus and the very projected prolateral superior and prolateral inferior keels, giving a triangular aspect to the basis of embolus, and the female seminal receptacles presenting a larger and narrower basis.

Catanduba, a new Theraphosinae spider genus from Central Brazil (Araneae, Theraphosidae)

Flávio Uemori Yamamoto, Sylvia M. Lucas, Antonio Domingos Brescovit ,2012

A new genus, Catanduba, is proposed and supported on the cladistic analysis with the following synapomorphies: embolus tapering abruptly from half of the length, embolus tooth associated with PIK and a triangular basal nodule on male metatarsus I. Homoeomma simoni and Plesiopelma flavohirtum are transferred to Catanduba and five new species are described: C. tuskae, C. araguaia, C. piauiensis, C. canabrava and C. peruacu. The species occur mainly in central Brazil, in Cerrado areas, with some species also occurring in Atlantic forest (C. tuskae sp. n. ) and Caatinga (C. piauiensis sp. n. and C. peruacu sp. n.).

Revalidation and revision of the genus Magulla Simon 1892 (Araneae, Mygalomorphae, Theraphosidae)

Rafael Prezzi Indicatti, Sylvia M. Lucas, José Paulo Leite Guadanucci, Flávio Uemori Yamamoto ,2008

The genus Magulla Simon 1892 is revalidated and redescribed. The female of the type species M. obesa Simon 1892 is redescribed and the male is described for the first time. Magulla janeirus (Keyserling 1891) is considered a valid species. Magulla symmetrica Bucherl 1949 is transferred to Plesiopelma Pocock 1901, and considered a junior synonym of P. insulare (Mello-Leitao 1923). Additionally, two new species are described from Brazil: M. buecherli n. sp. from Ilhabela, Sao Paulo and M. brescoviti n. sp. from Sao Francisco de Paula, Rio Grande do Sul.

Revision of the genus Tmesiphantes Simon (Araneae, Mygalomorphae, Theraphosidae)

Flávio Uemori Yamamoto, Sylvia M. Lucas, José Paulo Leite Guadanucci, Rafael Prezzi Indicatti ,2007

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.

Description of Guyruita gen. nov. and two new species (Ischnocolinae, Theraphosidae)

José Paulo Leite Guadanucci, Sylvia M. Lucas, Rafael Prezzi Indicatti, Flávio Uemori Yamamoto ,2007

The genus Guyruita gen. nov. and two new species from Brazil are described. Holothele waikoshiemi (Bertani & Araújo, 2005) from Venezuela is transferred here to the new genus. Guyruita gen. nov. differs from the remaining Ischnocolinae by the following features: labium densely occupied by a lot of cuspules (more than 100), intercheliceral intumescence absent, posterior sternal sigilla remote from margin, tarsal claws without teeth, tarsal scopula I-II undivided (tarsus II with a line of sparse setae, which does not divide the scopula), III-IV divided.

The Brazilian species of the spider genus Ephebopus Simon, 1892 (Araneae, Theraphosidae, Aviculariinae), with description of E. uatuman n. sp.

Sylvia M. Lucas, Pedro Ismael da Silva Júnior, Rogério Bertani ,1992

A new species of the genus Ephebopus Simon, 1892, E. uatuman, is described from the Amazonean Region of Brazil. Concerning E. violaceus Mello Leitao, 1930, type misplaced or lost despite registered in the Arachnological Collection of the Museu Nacional do Rio de Janeiro, Brazil, we conclude, after the short description of the author, that this species exhibit characteristics of the genus Avicularia, since the first ocular row is very procurve. The total length of only 23mm, the design on the dorsal side of the abdomen and the division of the posterior tarsal scopulae suggests that the specimen is a juvenile. Therfore two are the Brazilian species of the genus Ephebopus: E. murinus and E. uatuman.

Species described or mentioned