| triatoma juazeirensis sp. nov. from the state of bahia, northeastern brazil (hemiptera: reduviidae: triatominae). | triatoma juazeirensis, a new triatomine species from the state of bahia, northeastern brazil, is described. the new species is found among rocks in sylvatic environment and in the peridomicile. type specimens were deposited in the entomological collection of oswaldo cruz institute-fiocruz, museum of zoology of university of são paulo, and florida museum of natural history. t. juazeirensis can be distinguished from the other members of the t. brasiliensis species complex mainly by the overall col ... | 2007 | 17294006 |
| behavioral plasticity of triatominae related to habitat selection in northeast brazil. | triatoma pseudomaculata corrêa and espínola, 1964 and triatoma juazeirensis costa and felix, 2007 ( = t. brasiliensis neiva, 1911 [part]), are sylvatic vectors of trypanosoma cruzi (chagas, 1909), the causative agent of chagas disease, in northeast brazil-especially in the caatinga region. in an area of caatinga in the state of bahia, we compared the wild and peridomestic habitats of these two species of triatominae to assess their behavioral plasticity in relation to habitat selection in differ ... | 2008 | 18283937 |
| dispersion capacity of triatoma sherlocki, triatoma juazeirensis and laboratory-bred hybrids. | flight dispersion is recognized as one of the most important mechanisms for triatomine house infestation. triatoma sherlocki and t. juazeirensis are closely related species that occur within the same ecotope and their possible reproductive boundaries are unknown. t. sherlocki has shorter wings than t. juazeirensis; a characteristic that possibly implies in reduced flight dispersion, however, this species has been found to invade and colonize homes in bahia, brazil. here, we tested the flight pot ... | 2011 | 22210440 |
| are members of the triatoma brasiliensis (hemiptera, reduviidae) species complex able to alter the biology and virulence of a trypanosoma cruzi strain? | trypanosoma cruzi is the causative agent of chagas disease, transmitted to humans and mammals by blood-sucking hemipteran insects belonging to the triatominae subfamily. the two main genotypes of t. cruzi (tci and tcii) differ in many characteristics concerning their genetic profile. despite the extensive literature on vectors and the etiologic agent, several interactive aspects between these two elements of chagas disease are still waiting to be further clarified. here, biological and histologi ... | 2015 | 26013138 |
| phenotypic variability confirmed by nuclear ribosomal dna suggests a possible natural hybrid zone of triatoma brasiliensis species complex. | triatoma brasiliensis macromelasoma occurs in pernambuco state, brazil, which is situated between the distribution areas of triatoma brasiliensis brasiliensis (north) and triatoma juazeirensis (south). t. b. macromelasoma displays greater variations in its chromatic phenotype than either t. b. brasiliensis or t. juazeirensis, and patterns reminiscent of one or the other. experimental crosses from each of these members of the t. brasiliensis species complex generated fertile offspring suggesting ... | 2016 | 26520796 |
| multiple mitochondrial genes of some sylvatic brazilian triatoma: non-monophyly of the t. brasiliensis subcomplex and the need for a generic revision in the triatomini. | multiple fragments of mitochondrial dna genes (cytochrome b, cytochrome oxidase i, and 16s rdna) were used to evaluate the phylogenetic relationships among triatoma melanocephala, triatoma tibiamaculata, triatoma vitticeps, and other members of triatoma brasiliensis subcomplex under a bayesian framework and maximum parsimony criterion. with the addition of new sequences of t. tibiamaculata and t. vitticeps, triatoma juazeirensis, triatoma melanica and the newly sequenced t. melanocephala, the th ... | 2014 | 24508245 |
| revalidation and redescription of triatoma brasiliensis macromelasoma galvão, 1956 and an identification key for the triatoma brasiliensis complex (hemiptera: reduviidae: triatominae). | triatoma brasiliensis macromelasoma is revalidated based on the results of previous multidisciplinary studies on the triatoma brasiliensis complex, consisting of crossing experiments and morphological, biological, ecological and molecular analyses. these taxonomic tools showed the closest relationship between t. b. macromelasoma and triatoma brasiliensis brasiliensis. t. b. macromelasoma is redescribed based on specimens collected in the type locality and specimens from a f1 colony. the complex ... | 2013 | 24037202 |
| cross-mating experiments detect reproductive compatibility between triatoma sherlocki and other members of the triatoma brasiliensis species complex. | phylogenetic approaches based on mitochondrial dna variation (fragments of cyt b and 16s ribosomal rna) have revealed triatoma sherlocki as the most recent species addition to the triatoma brasiliensis species complex; a monophyletic group which includes t. brasiliensis, triatoma melanica, and triatoma juazeirensis. t. sherlocki is the most differentiated among all species of this complex: it is unable to fly, possesses longer legs than the other members, and has reddish tonality in some parts o ... | 2013 | 23850508 |