Triatoma carrioni is a blood-sucking bug and probably vector of the flagellate protozoan that causes Chaga's disease. It was discovered by F. Larrousse in 1926. Type: National Museum of Natural History, Smithsonian Institution, Washington DC. Paratype M: FIOCRUZ, Rio de Janeiro. Type locality: Loja Province, Ecuador. Distribution: South Ecuador, North Peru. Biology: silvatic, rodent nests and opossum lodges; also peridomestic, and occasionally in houses. Note: Spanish name: chinche de caballo