MT-CYB and Chagas disease: Based on the above, the hybrids resulting from the cross between T. sordida and T. rosai presented segregation of phenotypic characters of both parental species, 100% homeology between metaphase chromosomes, phylogenetic relationship with T sordida (with the CytB gene) and with T. rosai (with the ITS-1 molecular marker) and, finally, feeding and defecation patterns similar to the parents, highlighting the possible vector competence of these insects for Chagas disease (because they defecate during a blood meal).