The members of
Triatominae , a subfamily of
Reduviidae, are also known as
conenose bugs,
kissing bugs,
assassin bugs, or
triatomines. Most of the 130 or more species of this subfamily are
haematophagous, i.e. feed on vertebrate blood; a very few species feed on other invertebrates (Sandoval
et al. 2000, 2004). They are mainly found and widespread in the Americas, with a few species present in Asia, Africa, and Australia. These bugs usually share shelter with nesting vertebrates, from which they suck blood. In areas where
Chagas disease occurs (from the southern
United States to northern
Argentina), all triatomine species are potential
vectors of the Chagas disease parasite
Trypanosoma cruzi, but only those species (such as
Triatoma infestans and
Rhodnius prolixus) that are well adapted to living with humans are considered important vectors.