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| 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 |
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| Aloquio,Sergio; Lopes-Andrade,Cristiano. |
| ABSTRACT Lelegeis Champion, 1886 occurs only in the Neotropical region and comprises four species: L. aeneipennis Champion, 1886 from Mexico; L. apicalis Laporte & Brullé, 1831 from Cuba; L. hispaniolae Triplehorn, 1962 from Haiti and the Dominican Republic; and L. nigrifrons (Chevrolat, 1878) occurring in Brazil, Mexico, Panama, Peru and Venezuela. Here, Lelegeis pytanga sp. nov. is described based on specimens collected in the Atlantic Forest of Brazil, and the first detailed description of the sclerites of the male and female terminalia of Lelegeis is produced. The new species can be easily distinguished from the other Lelegeis by its dull reddish brown to reddish orange elytral coloration, while the remaining body surface is dull black. The... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Darkling beetle; Diaperinae; Host fungi; Southeast Brazil. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702017000100322 |
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| Souza-Gonçalves,Igor; Lopes-Andrade,Cristiano. |
| ABSTRACT Xylographellini beetles occur mainly in lands of the Southern Hemisphere. However, the taxonomy of Australian and Oriental species is incipient. The tribe comprises four genera, of which Scolytocis Blair, 1928 and Xylographella Miyatake, 1985 were recently redescribed and reported from Australia but without descriptions of new species. Here, three new species of Xylographellini are described: Scolytocis australimontensis sp. n. from Australia, with smooth interspaces of pronotal punctures; Scolytocis insularis sp. n. from the Pohnpei Island (Caroline Islands, Micronesia), with microstriated interspaces of pronotal punctures; and Xylographella frithae sp. n. from Australia, with six raised keels in elytral declivity. Scolytocis samoensis Blair,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Australia; Ciid; Ciinae; Micronesia; Minute tree-fungus beetles.. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702017000100311 |
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