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A new Brazilian species of the cricket genus Megalogryllus Chopard (Orthoptera: Gryllidae) Neotropical Entomology
Mesa,Alejo; García-Novo,Paula.
Megalogryllus clamosus a new species of cricket from the São Paulo State (Brazil) is described. Photographs of the holotype (male) and of the paratype (female) are provided, as well as a drawing of the structure of the right tegmen of the male and of the phallic sclerite structure. Photographs of the pars stridens teeth and sonogram of the male calling song are also provided.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Grylloidea; Phallic structure; Taxonomy; Bioacustics.
Ano: 2004 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2004000300009
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Cynolebias parnaibensis, a new seasonal killifish from the Caatinga, Parnaíba River basin, northeastern Brazil, with notes on sound producing courtship behavior (Cyprinodontiformes: Rivulidae) Neotropical Ichthyology
Costa,Wilson J. E. M.; Ramos,Telton P. A; Alexandre,Luisa C; Ramos,Robson T. C.
Cynolebias parnaibensis from the Canindé River drainage, Parnaíba River basin, northeastern Brazil, is described. It is considered to be a member of a clade endemic to the Caatinga. The clade is diagnosed, e. g., by a series of structural modifications of the pharyngeal jaw apparatus, which is related to the sound production exhibited by males during courtship behavior. The courtship sound of C. parnaibensis consists of a single pulse named as thump (duration 0.031-0.133s; interthump intervals 0.020-8.319s; dominant frequency 70.3-93.8 Hz). The new species is distinguished from all other congeners by a combination of 27-31 neuromasts around eye, 29-33 supraorbital neuromasts, 16-18 dorsal-fin rays and 19 anal-fin rays in males, 28-31 caudal-fin rays, 33-36...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Taxonomy; Systematics; Bioacustics; Etology; Sexual behavior.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252010000200006
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