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Registros recuperados: 5
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A new species of Laranda Walker 1869 (Orthoptera: Grylloidea, Phalangopsidae) from remnant patches of the Brazilian Atlantic Forest Neotropical Entomology
Mews,Carina M.; Lopes-Andrade,Cristiano; Sperber,Carlos F..
The genus Laranda has six described species and is confined to South and Southeast of Brazil. We describe a new species and discuss the biology and distribution of the genus. The new species can be distinguished from its known congeners by the following characteristics: absence of yellow spots on pronotum and base of posterior tibiae; female copulatory papilla: sclerotization in dorsal view forming opposing acute angles, apical lobes narrow and small; male genitalia: pseudepiphallic median process short and wide; pseudepiphallic paramere with apex incurved and ectophallic fold surpassing apex of the parameres. The genus is distributed within the Atlantic Forest biome; the new species is found on tree trunks, as well as on forest leaf litter.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Brazil; Cricket; Geographic distribution; Nymph.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2008000400010
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Aprimoramento da amostragem de grilos de serapilheira (Orthoptera: Gryllidae) por armadilha Neotropical Entomology
Sperber,Carlos F.; Vieira,Gustavo H.; Mendes,Moisés H..
Amostram-se grilos de serapilheira com armadilhas enterradas (pitfall). No entanto, algumas espécies são sub-amostradas, por que alguns indivíduos conseguem fugir da armadilha. Neste trabalho sugerimos a substituição da solução aquosa de detergente, por uma solução de formol-glicerina-álcool, para aumentar a eficiência da amostragem. Testamos se: (i) formol reduz a fuga de grilos; (ii) formol é repelente para os grilos. Foram instaladas 80 armadilhas, formando pares formol-detergente e detergente-detergente, com 20 cm entre armadilhas dentro do par, e 3 m entre pares. Foram coletados 105 indivíduos, sendo 29 adultos, de nove espécies, em três grupos taxonômicos: Phalangopsinae, Trigonidiinae e Brachytrupinae. Tanto o número de adultos quanto de ninfas...
Tipo: Info:eu-repo/semantics/report Palavras-chave: Metodologia; Armadilha enterrada; Inventário; Ecologia; Comportamento de locomoção.
Ano: 2003 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2003000400030
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The gall maker Neopelma baccharidis Burck. (Homoptera:Psyllidae) on Baccharis dracunculifolia DC. (Asteraceae): individual, local, and regional patterns Anais da SEB
Collevatti,Rosane G.; Sperber,Carlos F..
Baccharis dracunculifolia, the host plant of the gall maker Neopelma baccharidis Burck., is locally distributed in delimited patches. The effects of the host plant individual (plant height, crown diameter, and crown volume), local (host plant patch), and regional (locality) characteristics on the number of galls were analyzed, in Viçosa (three patches) and in Rio Doce State Park, Marliéria (two patches), Minas Gerais State (20°45'S, 42°50'W; and 19°50'S, 42°30'W, respectively). The number of galls/individual plant increased homogenousliy with plant dimensions on local and regional scale. Gall load was also homogenous, but the proportion of galled plants differed on a local scale. The differences were related to local plant size differences, and not to host...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Insecta; Galls; Parque Estadual do Rio Doce; Herbivory; Plant architecture.
Ano: 1997 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0301-80591997000100006
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Two new species of Phalangopsis Serville, 1831 (Orthoptera: Grylloidea: Phalangopsidae) from Brazilian Amazon Forest Anais da ABC (AABC)
Mews,Carina M.; Sperber,Carlos F..
We describe here two new species of the genus Phalangopsis Serville, 1831 from the Brazilian Amazon Forest. The male genitalia and the female copulatory papilla were described, and a combination of diagnostic characteristics was given to separate both new species from the other described species. The principal morphological characteristics of this genus were discussed.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Neotropical region; Brazil; Crickets; Phalangopsini.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652008000400006
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Why do male Xylographus contractus Mellié (Coleoptera: Ciidae) present abdominal fovea? Evidence of sexual pheromone secretion Neotropical Entomology
Lopes-Andrade,Cristiano; Gumier-Costa,Fabiano; Sperber,Carlos F..
Most male ciids present a fovea in the first urosternite. We tested two alternative hypotheses for the function of male abdominal fovea in Xylographus contractus Mellié: (i) the fovea secretes sexual pheromone, and (ii) the fovea secretes aggregation pheromone. For this, 59 specimens were submitted, separately, to two stimuli (fovea extracts and control) in an y-shaped glass olfactometer. For the analyses, we considered the 47 individuals that moved toward one of the longer olfactometer branches. The probability of moving toward the fovea extract was greater for females than for males (chi2 = 3.94, P = 0.047). The proportion of males that moved toward any of the olfactometer branches was the same (chi2 = 0.29, P = 0.59). We concluded that the male's...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Mycetobiont beetle; Copulatory courtship; Tangoreceptor.
Ano: 2003 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2003000200005
Registros recuperados: 5
Primeira ... 1 ... Última
 

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