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	Provedor de dados Neotropical Entomology (1) Rev. Bras. entomol. (1) Autor Medeiros,Lenice (2) Boligon,Danessa S. (1) Megier,Gabriela A (1) Palavra-chave Cassidinae (1) Feeding (1) Gratiana (1) Host selection (1) Morphological adaptation (1) Phytophagous bug (1) Reproductive performance (1) Tarsungulus (1) Trichomes (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2009 (1) 2007 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Occurrence and performance of Euschistus heros (F.) (Heteroptera: Pentatomidae) on alternative host plants in Rio Grande do Sul State, Brazil Neotropical Entomology Medeiros,Lenice; Megier,Gabriela A. The Neotropical brown stink bug Euschistus heros (F.) can reach high densities in some soybean areas in Brazil. Besides soybean, it also feeds on other plants, but little is known on the alternative hosts of E. heros in Rio Grande do Sul state. In this study, wild non-cultivated hosts of E. heros at Norwest of Rio Grande do Sul state were determined, and the E. heros performance was compared when fed on soybean and on wild hosts. Bugs were sought in plants located inside and on the edge of soybean fields during 2004/2005 and 2005/2006 seasons. Adults were recorded feeding on seeds of Amaranthus retroflexus (Amaranthaceae), and on fruits of three Solanaceae, mainly Vassobia breviflora. Immature survivorship on soybean (86.7%) and on V. breviflora (81.8%)... Tipo: Info:eu-repo/semantics/article Palavras-chave: Phytophagous bug; Feeding; Reproductive performance; Host selection. Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2009000400003 Adaptations of two specialist herbivores to movement on the hairy leaf surface of their host, Solanum guaraniticum Hassl (Solanaceae) Rev. Bras. entomol. Medeiros,Lenice; Boligon,Danessa S.. Plant trichomes can difficult the attachment and movement of small insects. Here, we examine the hypothesis that the success on the use of densely haired hosts by two cassidine species is determined by differential morphology and behavior. Larvae of Gratiana graminea (Klug, 1829) and Gratiana conformis (Boheman, 1854) move on the leaf surface of their host, Solanum guaraniticum Hassl by anchoring their tarsungulus on the trichome rays or by inserting the tarsungulus tip directly into epidermis. This kind of movement is only possible due to a similar tarsungulus shape among the species. Tarsungulus growth pattern is also similar between species, being relatively small on the posterior aperture, matching the diameter of the host plant trichome rays. The... Tipo: Info:eu-repo/semantics/article Palavras-chave: Cassidinae; Gratiana; Morphological adaptation; Tarsungulus; Trichomes. Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262007000200011 Registros recuperados: 2 Primeira ... 1 ... Última

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