The synanthropic process of Chagas disease vectors in Brazil, with special attention to Triatoma brasiliensis Neiva, 1911 (Hemiptera, Reduviidae, Triatominae) population, genetical, ecological, and epidemiological aspects

Esboço geral e perspectivas da doença de Chagas no Nordeste do Brasil

“…As pressões ecológicas e, particularmente, a ação antrópica explicam as alternâncias de espécies na região nordestina, ou mesmo a diversidade intra-específica que se observa há tempos com o próprio T. brasiliensis (Costa, 1999). Assim, no Maranhão, Estado com grande número de espécies detectadas, a DCH é a de menor importância na região, havendo poucas probabilidades de que venha agravar-se a endemia chagásica a curto ou médio prazo.…”

Chromosome homogeneity in populations of Triatoma brasiliensis Neiva 1911 (Hemiptera - Reduviidae - Triatominae)

“…7) Reciprocal crosses among all populations showed the F1 fertile. However, in the F2, a high percentage of sterile eggs, longer development period, and high mortality rate of fifth instar nymphs were observed for the brasiliensis male x melanica female (Costa, 1999).…”

Triatoma rubrovaria (Blanchard, 1843) (Hemiptera-Reduviidae-Triatominae) III: patterns of feeding, defecation and resistance to starvation

“…The assessment of the vectorial capacity of the triatomines through biological studies is essential to define monitoring actions and serves as a basis for control measures (Perlowagora-Szumlewics 1969, Costa 1999, Soares et al 2000. In order to clarify bionomic aspects that could influence the vectorial capacity of T. rubrovaria, the patterns of feeding, defecation and resistance to starvation were evaluated.…”