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| Soares,Ilka M F; Della Lucia,Terezinha M C; Pereira,Alice S; Serrão,José E; Ribeiro,Myriam M R; Souza,Danival J de. |
| Social parasites exhibit several characteristics that allow them to exploit their host species efficiently. The smaller size of parasite species is a trait commonly found in ants. In this work, we investigated several aspects of the reproductive biology of Acromyrmex ameliae De Souza, Soares & Della Lucia, a recently discovered parasite of Acromyrmex subterraneus subterraneus Forel. Sexuals of A. ameliae are substantially smaller than those from host species. Parasite queens laid significantly less worker eggs than host queens and inhibit sexual production of the host. The sex ratio of parasite species is highly female biased. Interestingly, we have observed parasite coupling on the laboratory, inside the nests and in the ground, opening the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Social parasitism; Egg production; Size reduction. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2010000500007 |
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| Santos-Neto,Joaquim R; Mezencio,Jose M S; Chagas,Aline T A; Michereff-Filho,Miguel; Serrão,José E. |
| Spodoptera frugiperda (J E Smith) is an important pest of several crops, but especially on maize in Brazil. The implementation of biological control measures hinges on the identification of its predators and other natural enemies. As a means of identifying predators, antibodies against S. frugiperda eggs were generated by inoculating rabbits with macerated S. frugiperda eggs, and the production of antibodies against S. frugiperda egg proteins was verifi ed by double immunodiffusion (DID). These antibodies were then utilized in another serological technique, counterimmunoeletrophoresis (CIE), to identify insects that could have ingested S. frugiperda eggs. Macerates of entire insects collected in maize plantations and of individual parts of their digestive... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fall armyworm; Natural enemy; Double immunodiffusion; Counterimmunoelectrophoresis. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2010000300016 |
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| Pereira,Fabricio F; Zanuncio,José C; Serrão,José E; Oliveira,Harley N; Fávero,Kellen; Grance,Elizangela L V. |
| Palmistichus elaeisis Delvare & LaSalle é um parasitóide pupal natural de pupas de lepidópteros desfolhadores de eucalipto e é considerado um promissor agente de controle biológico. No entanto, o desenvolvimento de técnicas de criação eficientes desse inimigo natural é inicialmente necessário para que ele possa ser utilizado em programas de controle biológico. Pupas de Bombyx mori L. são hospedeiras alternativas em potencial para criação massal de P. elaeisis. Por isto, nós avaliamos a idade mais suscetível do hospedeiro e os efeitos da idade do parasitóide na produção de progênie de P. elaeisis. Pupas de B. mori com 24, 48, 72 ou 96h de idade foram expostas a fêmeas de P. elaeisis de mesmas idades. A duração do ciclo de vida (ovo-adulto) de P.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Insecta; Controle biológico; Parasitóide de pupas; Idade de hospedeiro. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2009000500016 |
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| Vitta,Ana Cristina R; Serrão,José E; Lima,Eraldo R; Villela,Evaldo F. |
| Triatoma brasiliensis Neiva is the most important vector of the Chagas' disease in the semiarid zones of North-eastern Brazil. Adult bugs have two main pairs of exocrine glands, the metasternal and the Brindley's glands, which release volatiles possibly with defense, alarm and/or mating functions. To date, anatomical and histological studies of the metasternal and the Brindley's glands in the genus Triatoma are scarce and, considering the relevance of these exocrine glands, the present work aimed at studying their morphology in T. brasiliensis. The metasternal and the Brindley's glands of T. brasiliensis consist of glandular units similar to those described for Rhodnius prolixus Stål and Panstrongylus megistus Burmeister, comprising a secretory apparatus,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Chagas' disease; Triatomine; Morphology. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2009000200010 |
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