A list of Brentidae Acratini collected during a field trip conducted in 2015 in the Mitaraka Massif (c. 2°14’N, 54°27’W), in French Guiana, is given. Two new species are described: Parateramocerus teko n. sp. and Neacratus viridis n. sp. A new synonymy is proposed: Proteramocerus affinis Soares & Dias, 1971, n. syn. of Proteramocerus enervatus Kleine, 1927. This last taxon is transferred to the genus Parateramocerus Mantilleri, 2015, leading to the new combination Parateramocerus enervatus (Kleine, 1927) n. comb. Its discovery in the Mitaraka Massif is a new record for French Guiana; it is also newly recorded from Peru. Fonteboanius lamellipes Senna, 1893 is recorded for the first time from French Guiana.
Neotropical region, morphology, faunistics, new records, new synonym, new combination, new species.