Colombia is a country with a high diversity of ants; however, several new taxa are still being reported for the country. Forty seven new records for the country are registered here, all in the subfamily Myrmicinae: one new species record for the genera Adelomyrmex, Allomerus, Kempfidris, Megalomyrmex, Octostruma and Tranopelta; two for Rogeria; five for Myrmicocrypta; six for Procryptocerus; seven for Cephalotes; ten for Pheidole and eleven for Strumigenys. Three of these new records are invasive or tramp species, Pheidole indica, Strumigenys emmae, and Strumigenys membranifera. Three species are also recorded for the first time in South America: Pheidole sicaria, Procryptocerus tortuguero, and Strumigenys manis. The ant genus Kempfidris is recorded for the first time for Colombia. All species are commented. Currently, the diversity of ants in Colombia approaches 1,200 known species in 105 genera. Key words: Amazon rainforest, Andean region, biodiversity, Colombian fauna, Formicidae, Neotropical region, tramp species. Colombia es un pais con alta diversidad de hormigas, sin embargo, nuevos taxones se siguen registrando para el pais. Cuarenta y siete nuevos registros se relacionan aqui, todos dentro de la subfamilia Myrmicinae: Uno para los generos Adelomyrmex, Allomerus, Kempfidris, Megalomyrmex, Octostruma y Tranopelta; dos para Rogeria; cinco para Myrmicocrypta; seis para Procryptocerus; siete para Cephalotes; diez para Pheidole y once para Strumigenys. Tres de esos nuevos registros corresponden a especies invasoras, Pheidole indica, Strumigenys emmae y Strumigenys membranifera. Tres especies se citan por primera vez para America del Sur: Pheidole sicaria, Procryptocerus tortuguero y Strumigenys manis. El genero Kempfidris se registra por primera vez para Colombia. Se ofrecen comentarios para todas las especies. La diversidad de hormigas en Colombia comprende 105 generos y casi 1.200 especies. Palabras clave: Amazonas, Andes, biodiversidad, fauna de Colombia, Formicidae, Neotropico, especies invasoras.