We provide a record of Elachistocleis helianneae from the municipality of Macapá, the first from the state of Amapá, northern Brazil. This is also the species’ most eastern occurrence and significantly extends the known distribution by 350 km from the closest previously known occurrence in the municipality of Belém, state of Pará; the new record is ca. 1,600 km from this species’ type locality at Humaitá, state of Amazonas.