Rhodnius prolixus, one of the most important vector of Chagas'
disease in Venezuela, was basically considered in this country as related
to the domiciliar transmission cycle. In the sylvatic environment it was
observed that this species was mainly adapted to palm tree crowns and nests
of Mycteria americana. R. prolixus is a very eclectic
species feeding on marsupials, rats, birds and reptilians. Moreover, it is
agreed that the adaptation of R. prolixus to human dwellings was a
consequence of human colonization of the natural foci of Trypanosoma