On the spider genus Cryptachaea from Peru, Bolivia and cave environments in Brazil: a new species, additional descriptions and new records (Araneae, Theridiidae).

In this paper a new species of Cryptachaea Archer, 1946 based on males and females is described from Brazilian caves: Cryptachaea pilar Santanna Rodrigues, new species from the states of Minas Gerais and São Paulo. The females of Cryptachaea parana (Levi, 1963) and C. schneirlai (Levi, 1959) are described and illustrated for the first time. Cryptachaea uviana (Levi, 1963) is synonymized with C. migrans (Keyserling, 1884). The species Cryptachaea alacris (Keyserling, 1884), C. benivia Rodrigues Poeta, 2015, C. parana (Levi, 1963) and C. schneirlai (Levi, 1959) are recorded for the first from Brazil; and C. migrans for the first time from Bolivia. Additionally, new records from Brazilian caves are provided for Cryptachaea parana, from the states of Tocantins, Goiás, Minas Gerais, Mato Grosso do Sul and São Paulo; C. schneirlai and C. alacris from the state of Pará; C. dea (Buckup Marques, 2006) and C. rioensis (Levi, 1963) from Pará and Minas Gerais, C. jequirituba (Levi, 1963) from Minas Gerais and C. benivia from São Paulo.

On the spider genus Cryptachaea from Peru, Bolivia and cave environments in Brazil: a new species, additional descriptions and new records (Araneae, Theridiidae)

In this paper a new species of Cryptachaea Archer, 1946 based on males and females is described from Brazilian caves: Cryptachaea pilar Santanna & Rodrigues, new species from the states of Minas Gerais and São Paulo. The females of Cryptachaea parana (Levi, 1963) and C. schneirlai (Levi, 1959) are described and illustrated for the first time. Cryptachaea uviana (Levi, 1963) is synonymized with C. migrans (Keyserling, 1884). The species Cryptachaea alacris (Keyserling, 1884), C. benivia Rodrigues & Poeta, 2015, C. parana (Levi, 1963) and C. schneirlai (Levi, 1959) are recorded for the first from Brazil; and C. migrans for the first time from Bolivia. Additionally, new records from Brazilian caves are provided for Cryptachaea parana, from the states of Tocantins, Goiás, Minas Gerais, Mato Grosso do Sul and São Paulo; C. schneirlai and C. alacris from the state of Pará; C. dea (Buckup & Marques, 2006) and C. rioensis (Levi, 1963) from Pará and Minas Gerais, C. jequirituba (Levi, 1963) from Minas Gerais and C. benivia from São Paulo.

On the spider genus Cryptachaea from Peru, Bolivia and cave environments in Brazil: a new species, additional descriptions and new records (Araneae, Theridiidae)

In this paper a new species of Cryptachaea Archer, 1946 based on males and females is described from Brazilian caves: Cryptachaea pilar Santanna & Rodrigues, new species from the states of Minas Gerais and São Paulo. The females of Cryptachaea parana (Levi, 1963) and C. schneirlai (Levi, 1959) are described and illustrated for the first time. Cryptachaea uviana (Levi, 1963) is synonymized with C. migrans (Keyserling, 1884). The species Cryptachaea alacris (Keyserling, 1884), C. benivia Rodrigues & Poeta, 2015, C. parana (Levi, 1963) and C. schneirlai (Levi, 1959) are recorded for the first from Brazil; and C. migrans for the first time from Bolivia. Additionally, new records from Brazilian caves are provided for Cryptachaea parana, from the states of Tocantins, Goiás, Minas Gerais, Mato Grosso do Sul and São Paulo; C. schneirlai and C. alacris from the state of Pará; C. dea (Buckup & Marques, 2006) and C. rioensis (Levi, 1963) from Pará and Minas Gerais, C. jequirituba (Levi, 1963) from Minas Gerais and C. benivia from São Paulo.

Five new species and new records of the spider genus Stemmops Araneae, Theridiidae, Spintharinae) from Brazil.

The spider genus Stemmops O. Pickard-Cambridge, 1894, currently comprises 22 described species. Spiders of this genus are mainly known from the Neotropical Region, but are poorly studied in Brazil. In this paper five new species of Brazilian Stemmops are described: Stemmops murici new species; Stemmops carauari new species; Stemmops carajas new species; Stemmops pains new species, and Stemmops guapiacu new species. Additionally, new records from Brazil are provided for Stemmops carius Marques Buckup, 1996 from state of São Paulo; Stemmops belavista Marques Buckup, 1996 from Mato Grosso do Sul; and Stemmops vicosa Levi, 1964 from Alagoas. The species Stemmops servus Levi, 1964 (known from Panama) is recorded for the first time in Brazil from states of Amazonas, Paraíba, Alagoas, Minas Gerais, Espírito Santo and Rio de Janeiro.

Six new species and new records of the spider genus Chrosiothes from Brazil with the description of the female of Chrosiothes venturosus Marques & Buckup, 1997 (Araneae, Theridiidae, Spintharinae).

The spider genus Chrosiothes Simon, 1894 currently comprises 21 described species. Spiders of this genus are mainly known from the Neotropical Region, but are poorly studied in Brazil. In this paper six new species of Chrosiothes are described from Brazil: Chrosiothes diabolicus new species; Chrosiothes carajaensis new species; Chrosiothes cicuta new species; Chrosiothes murici new species; Chrosiothes decorus new species and Chrosiothes una new species. The female of Chrosiothes venturosus Marques & Buckup, 1997 is described and illustrated for the first time. Additionally, new records from Brazil are provided for C. perfidus Marques & Buckup, 1997 and C. niteroi Levi, 1964.