The 22nd Annual Latin American Symposium presented by the American Mosquito Control Association (AMCA) was held as part of the 78th Annual Meeting in Austin, TX, in February 2012. The principal objective, as for the previous 21 symposia, was to promote participation in the AMCA by vector control specialists, public health workers, and academicians from Latin America. This publication includes summaries of 21 presentations that were given orally in Spanish or presented as posters by participants from Mexico, Colombia, Venezuela, and the USA. Topics addressed in the symposium included surveillance, chemical control, insecticide resistance, and genetics associated with Aedes aegypti; food sources and control of Culex; taxonomy, surveillance, and control of Anopheles vectors of malaria; and studies of dengue virus and Leishmania.