Subgenus
Kerteszia immatures develop primarily in the water in
bromeliads, and less often in
bamboo. They are distributed southward from the
State of Veracruz in Mexico through Central America and Atlantic South America, along the coast to
Misiones Province in Argentina and
Rio Grande do Sul in Brazil, and on the Pacific coast of South America to
El Oro Province, Ecuador. The subgenus is absent from the
West Indies islands except
Trinidad and from most of the
Amazon basin in South America. ==Medical importance==