A new Scinax of the S. catharinae species group from Central Brazil (Amphibia: Anura: Hylidae)

A new species of Scinax Wagler, 1830 belonging to the S. catharinae species group is described from the state of Goiás, in the Cerrado Biome, Brazil. Scinax skaios sp. nov. is characterized by short snout-vent length (males ranging 23.2-29.6 mm; females 30.7- 36.1 mm), snout subovoid in dorsal view and protruding in lateral view; no tubercle on canthus rostralis; an inverted triangular interorbital blotch; no externally expanded vocal sac; dorsal skin texture moderately rugose; absence of a thick externally well differentiated inguinal gland; hidden areas of the thigh with vermiculate color pattern. The descriptions of the vocalizations are provided.

A new Scinax of the S. catharinae species group from Central Brazil (Amphibia: Anura: Hylidae)

A new species of Scinax Wagler, 1830 belonging to the S. catharinae species group is described from the state of Goiás, in the Cerrado Biome, Brazil. Scinax skaios sp. nov. is characterized by short snout-vent length (males ranging 23.2-29.6 mm; females 30.7- 36.1 mm), snout subovoid in dorsal view and protruding in lateral view; no tubercle on canthus rostralis; an inverted triangular interorbital blotch; no externally expanded vocal sac; dorsal skin texture moderately rugose; absence of a thick externally well differentiated inguinal gland; hidden areas of the thigh with vermiculate color pattern. The descriptions of the vocalizations are provided.

A new Scinax of the S. catharinae species group from Central Brazil (Amphibia: Anura: Hylidae)

A new species of Scinax Wagler, 1830 belonging to the S. catharinae species group is described from the state of Goiás, in the Cerrado Biome, Brazil. Scinax skaios sp. nov. is characterized by short snout-vent length (males ranging 23.2-29.6 mm; females 30.7- 36.1 mm), snout subovoid in dorsal view and protruding in lateral view; no tubercle on canthus rostralis; an inverted triangular interorbital blotch; no externally expanded vocal sac; dorsal skin texture moderately rugose; absence of a thick externally well differentiated inguinal gland; hidden areas of the thigh with vermiculate color pattern. The descriptions of the vocalizations are provided.

Habitat use by a tree frog species of Scinax (Amphibia, Hylidae) at an urban forest fragment from south-eastern Brazil

We studied the pattern of habitat use by the tree frog Scinax aff. perereca. Fieldworks were performed from August 1996 to August 1997 at Parque das Mangabeiras, Belo Horizonte, State of Minas Gerais, southeastern Brazil. Calling males were observed in September, October and December 1996, February to April and June 1997. Females were found only in October 1996. Specimens were found perched on vegetation, on the ground or on stones near waterfall. At Parque das Mangabeiras, S. aff. perereca occupied nine types of substrata. The most frequently used substrata were shrubs, stones at the stream edges, and fallen trunks. The pattern of spatial occupation varied among months. Males were found calling in aggregations on the vegetation and spatial niche breadth was related to species abundance.

No presente estudo é tratado o uso do hábitat por Scinax aff. perereca, durante o período de agosto de 1996 a agosto de 1997 em uma área de mata urbana em Belo Horizonte, Minas Gerais, sudeste do Brasil. Machos em atividade de vocalização foram encontrados em setembro, outubro e dezembro de 1996 e de fevereiro a abril e junho de 1997. As fêmeas foram capturadas apenas em outubro de 1996. Os indivíduos foram encontrados em galhos da vegetação no solo ou em pedras próximas a quedas de água. Na área estudada, S. aff. perereca usa nove tipos de substratos, sendo os mais freqüentes a vegetação herbácea, pedras na margem do riacho e troncos caídos. O padrão de ocupação espacial variou ao longo dos meses. Os machos foram encontrados vocalizando em agregados e a largura de nicho espacial foi diretamente relacionada a abundância da espécie.

Habitat use by a tree frog species of Scinax (Amphibia, Hylidae) at an urban forest fragment from south-eastern Brazil

We studied the pattern of habitat use by the tree frog Scinax aff. perereca. Fieldworks were performed from August 1996 to August 1997 at Parque das Mangabeiras, Belo Horizonte, State of Minas Gerais, southeastern Brazil. Calling males were observed in September, October and December 1996, February to April and June 1997. Females were found only in October 1996. Specimens were found perched on vegetation, on the ground or on stones near waterfall. At Parque das Mangabeiras, S. aff. perereca occupied nine types of substrata. The most frequently used substrata were shrubs, stones at the stream edges, and fallen trunks. The pattern of spatial occupation varied among months. Males were found calling in aggregations on the vegetation and spatial niche breadth was related to species abundance.

No presente estudo é tratado o uso do hábitat por Scinax aff. perereca, durante o período de agosto de 1996 a agosto de 1997 em uma área de mata urbana em Belo Horizonte, Minas Gerais, sudeste do Brasil. Machos em atividade de vocalização foram encontrados em setembro, outubro e dezembro de 1996 e de fevereiro a abril e junho de 1997. As fêmeas foram capturadas apenas em outubro de 1996. Os indivíduos foram encontrados em galhos da vegetação no solo ou em pedras próximas a quedas de água. Na área estudada, S. aff. perereca usa nove tipos de substratos, sendo os mais freqüentes a vegetação herbácea, pedras na margem do riacho e troncos caídos. O padrão de ocupação espacial variou ao longo dos meses. Os machos foram encontrados vocalizando em agregados e a largura de nicho espacial foi diretamente relacionada a abundância da espécie.