The rearing of T. infestans under several temperature, blood feeding and infection conditions, was observed. Temperature levels were 25 and 30ºC, blood sources were mice and chickens, and were reported as with or without Trypanosoma cruzi infections. A shortness of the entire cycle from the hatching of the egg to adult in the high temperature level was observed. Beside this, less blood quantities and few blood meals were required to reach the adult stage. The utilization of mouse blood gave too a shorter time expended in the evolution, with fewer meals and lesser blood in volume. The trypanosome infection was related with more quantity of blood need by the fifth nymphs, and more meals for these imature stage when submited at 25ºC of temperature. Interactions between the conditions studied, were recorded.