The triatomine likes the nests of vertebrate animals for shelter, where it bites and sucks blood for food. Individual triatomines infected with protozoa from other contact with animals transmit trypanosomes when the triatomine deposits its faeces on the host's skin surface and then bites.
Triatomines often reside in the nests of vertebrates for protection, biting to feed on blood. These triatomines can spread trypanosomes if they come into contact with infected protozoa from other animals and then bite their hosts, depositing feces containing the parasites.