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American visceral leishmaniasis is a zoonosis caused by  Leishmania infantum  and transmitted mainly by  Lutzomyia longipalpis . However, canine cases have been reported in the absence of this species in the Greater São Paulo region, where  Pintomyia fischeri  and  Migonemyia migonei  are the predominant species. This raises the suspicion that they could be acting as vectors. Therefore, this study sought to investigate specific vector capacity parameters of these species and to compare them with those of  Lu. longipalpis s.l . Among these parameters the blood feeding rate, the survival, and the susceptibility to the development of  Le. infantum  were evaluated for the three species, and the attractiveness of dogs to  Pi. fischeri  and  Mg. migonei  was evaluated. The estimated interval between blood meals was shorter for  Lu. longipalpis s.l , followed by  Pi. fischeri  and  Mg. migonei . The infection rate with  Le. infantum  flagellates in  Lu. longipalpis  was 9.8%, in  Pi. fischeri  4.8%, and in  Mg. migonei  nil. The respective infective life expectancies (days) of  Lu. longipalpis ,  Mg. migonei , and  Pi. fischeri  were 2.4, 1.94, and 1.68. Both  Pi. fischeri  and  Mg. migonei  were captured in the kennel with a predominance (95%) of  Pi. fischeri . Considering the great attractiveness of dogs to  Pi. fischeri , its susceptibility to infection by  Le. infantum , infective life expectancies, and predominance in Greater São Paulo, this study presents evidence of  Pi. fischeri  as a potential vector of this parasite in the region.

Canine visceral leishmaniasis in the metropolitan area of São Paulo:Pintomyia fischerias potential vector ofLeishmania infantum