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| Barcellos,Aline; Schmidt,Letícia S.; Brailovsky,Harry. |
| The coreoid fauna from Neotropics is poorly known, especially in terms of community studies. Aiming at contributing to this knowledge, a two-year study was carried out at Parque Estadual do Turvo, Municipality of Derrubadas, state of Rio Grande do Sul, Brazil, to evaluate the composition, abundance and species richness of Coreoidea. Samplings were conducted in the springs of 2003 and 2004 (October), and autumns of 2004 and 2005 (May), using beating tray method, along two trails of the park. Sampling effort (hours X collectors) totaled 153h. A total of 282 individuals of Coreoidea were collected, distributed in 28 species of Alydidae, Coreidae and Rhopalidae. The most abundant species was the coreid Cebrenis supina Brailovsky, representing 16% of the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Alydidae; Coreidae; Rhopalidae; Diversity; Survey. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2008000400008 |
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| Santos,Claudia H.; Panizzi,Antônio R.. |
| Em casa-de-vegetação, plantas individualizadas de soja [Glycine max (L.) Merrill] foram infestadas com 1, 2, 4, 8 e 16 adultos de Neomegalotomus parvus (Westwood), no final do estádio R6, por um período de 20 dias, para determinação dos danos qualitativos nas sementes, através do teste de tetrazólio. Os resultados indicaram aumento na percentagem de danos totais em sementes e de sementes não viáveis, quando do aumento do número de percevejos/planta, bem como redução na percentagem do vigor das sementes e na viabilidade. A partir de 4 percevejos/planta, 8,0 % das sementes foram inviabilizadas; infestações de 8 e 16 percevejos/planta, causaram 13,8 e 22,0 % de sementes não viáveis, respectivamente, com 16 percevejos/planta reduzindo o vigor das sementes em... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Insecta; Hemiptera; Alydidae; Glycine max; Qualidade de sementes. |
| Ano: 1998 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0301-80591998000300006 |
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| Ventura,Maurício Ursi; Panizzi,Antônio Ricardo. |
| Interactions between Neomegalotomus parvus (Westwood) (Coreoidea: Heteroptera: Alydidae) and host plants were investigated including population monitoring throughout the year, gregarious behavior in the field, and oviposition preference among host plants and one non-host plant in field cages. Cowpea, Vigna unguiculata (L.) Walp., soybean, Glycine max (L.) Mill. cv. BR 37, pigeon pea, Cajanus cajan (L.) Mill., pigeon pea cv. Anão, and lablab, Dolichos lablab L. were monitored in the field. N. parvus was found on host plants during 11 months. The shortest period of occurrence was observed on soybean and the longest on lablab. Insects were found mostly on mature pods. Contagious distribution (negative bionomial) was detected, characterizing the aggregation.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Hemiptera; Alydidae; Host plants; Phenology; Oviposition. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132003000100006 |
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