| [description of triatoma pseudomaculata, a new species of triatominae of sobral, ceará (hemiptera, reduviidae)]. | | 1964 | 4959506 |
| influence of the palm tree species on the variability of rhodnius nasutus stål, 1859 (hemiptera, reduviidae, triatominae). | this work evaluated the occurrence and genetic structure of rhodnius nasutus sampled in two sites using morphometry and microsatellites. these sites, presented distinct abiotic features and palm trees: (i) nine attalea speciosa palm trees, so called babaçu, were sampled from the meruoca mountain ridge, a sloping region of reminiscent forest in the state of ceará, brazil, and (ii) 17 copernicia prunifera palm trees, so called carnaúba, were sampled in the scrub savanna region (sobral district) th ... | 2011 | 21335104 |
| ecological aspects of rhodnius nasutus stål, 1859 (hemiptera: reduviidae: triatominae) in palms of the chapada do araripe in ceará, brazil. | the aim of this work is to present aspects related to the ecology of rhodnius nasutus stål, 1859 in palms from chapada do araripe in ceará, brazil. the following five species of palms were investigated: babaçu (attalea speciosa), buriti (mauritia flexuosa), carnaúba (copernicia prunifera), catolé (syagrus oleracea) and macaúba-barriguda (acrocomia intumescens). fifth palms were dissected (10 specimens for each species). the overall infestation index was 86%, with a total of 521 triatomines colle ... | 2008 | 19148424 |
| first report on the occurrence of trypanosoma rangeli tejera, 1920 in the state of ceará, brazil, in naturally infected triatomine rhodnius nasutus stål, 1859 (hemiptera, reduviidae, triatominae). | the aim of this work was to identify and report the occurrence of trypanosoma rangeli and trypanosoma cruzi in naturally infected rhodnius nasutus (hemiptera, reduviidae, triatominae) in the state of ceará, brazil. triatomines feces, salivary glands, and hemolymph were collected for fresh examination, and specific detection of t. rangeli and t. cruzi dna by polymerase chain reaction was carried out. the specific characterization of these two parasites showed the simultaneous presence of both par ... | 2007 | 17710312 |
| [feeding sources evaluation of panstrongylus lutzi (neiva & pinto, 1923) (hemiptera: reduviidae: triatominae) in the state of ceará]. | the authors used precipitin technique to detect the feeding sources of panstrongylus lutzi (neiva & pinto, 1923) in 20 municipalities of ceará state, brazil. the results detected the presence of blood from eight different blood sources and mixed feedings, demonstrating that panstrongylus lutzi is an eclectic species. high infection rates for trypanosoma like-cruzi were detected. | 2006 | 17119749 |
| biogeography of brazilian populations of panstrongylus megistus (hemiptera, reduviidae, triatominae) based on molecular marker and paleo-vegetational data. | in epidemiological terms, panstrongylus megistus is one of the most important species of triatomine bug in brazil. samples from 11 localities were studied using the random amplification of polymorphic dna (rapd) technique, which was able to differentiate the study populations clearly. biogeographical data indicate that these populations could already have arisen 18,000 years ago (c(14)), it being possible to differentiate insects from the brazilian states of santa catarina (sc) in the south, cea ... | 2006 | 17055993 |
| aspects of peridomiciliary ecotopes in rural areas of northeastern brazil associated to triatomine (hemiptera, reduviidae) infestation, vectors of chagas disease. | artificial ecotopes of 121 peridomiciliary environments in four rural localities in the state of ceará, brazil, were studied and the type of material of the ecotopes was identified as triatomine infestation. two thousand two hundred and four triatoma brasiliensis neiva, 340 triatoma pseudomaculata corrêa and espínola, 121 rhodnius nasutus stall, and 5 panstrongylus lutzi (neiva and pinto) were captured. out of the 323 ecotopes found (x = 2.0 +/- 1.8 per dwelling) - such as pigpens, henhouses, co ... | 2006 | 16830706 |
| dynamics between sylvatic, peridomestic and domestic populations of triatoma brasiliensis (hemiptera: reduviidae) in ceara state, northeastern brazil. | triatoma brasiliensis is the most important chagas disease vector in the drier regions of the "brazilian caatinga", colonizing both sylvatic and domestic environments, usually forming abundant colonies. control trials using insecticides against domestic and peridomestic populations suggest that the t. brasiliensis has a high capacity to repopulate treated habitats from the neighboring sylvatic populations, making its elimination more complex. the aim of this work was to determine genetic variabi ... | 2005 | 15589804 |
| feeding and defecation patterns of rhodnius nasutus (hemiptera; reduviidae), a triatomine native to an area endemic for chagas disease in the state of ceará, brazil. | the importance of rhodnius nasutus in the transmission of chagas disease in northeastern brazil was investigated regarding feeding and defecation patterns of this triatomine under laboratory conditions. an average of 30 samples were studied for each instar, from fourth-instar nymphs onward. on average, 86.4% started feeding after less than 10 minutes. in terms of the duration of feeding, 53.3% of fourth instar nymphs, 81.9% of fifth-instar nymphs, 21.9% of males, and 36.7% of females fed for mor ... | 2009 | 19815881 |
| is rhodnius nasutus (hemiptera; reduviidae) changing its habitat as a consequence of human activity? | rhodnius nasutus, a triatomine species autochthonous in the brazilian northeast, is primarily associated with the copernicia prunifera palm tree (carnauba). for the first time, the colonization of this triatomine in another tree species is reported. to investigate the existence of an infected triatomine focus located in a periurban area of the county of jaguaruana, ceará, situated in the brazilian northeast, where soil is greatly altered and natural vegetation scarce, an entomological survey was ... | 2008 | 18095000 |