Resumo. There are 11 genera of Dorylinae in the Neotropics, but Syscia Roger, 1861 is the only one with a discontinuous distribution between the Nearctic, Neotropical and Indomalayan regions. The present study reports a new record of Syscia in northern Brazil and confirms its distribution in South America, in accordance with previous reports. The Syscia specimens corresponds to an undescribed species and were collected along the margins of the Madeira River, in the National Forest of do Jamari, in the southwestern Brazilian Amazon.