“…After several control actions, autochthonous human malaria was no longer recorded in Rio Grande do Sul. (12,13,14,15,16) Then, after more than four decades, an unexpected malaria case was detected in April 2014, in a 58-year-old white male, diabetic insulin dependent, living in the anopheline-free urban area of Terra de Areia (29º35'13''S 50º03'59''W), a municipality at the northern coastal zone distant 45 km from Torres and 122 km from Porto Alegre, the capital of Rio Grande do Sul (Fig. 1).…”