This paper is a further contribution to the knowledge of the Heteroptera of the Netherlands Antilles continuing the series on bugs of this region (COBBEN, 1960a, b; DRAKE & COBBEN, 1960a, b; WYGODZINSKY, 1960; NIESER, 1967, 1969a, b; COBBEN & WYGODZINSKY, 1975). It is based on the material of berytinids collected by the second author while studying the bugs of these islands. The material collected contained a total number of 65 specimens of Berytinidae divided into 3 genera and 3 species: Pronotacantha armata Stusak, from Curaçao; Aknisus multispinus Ashmead, from Bonaire, Aruba and Curaçao; Jalysus reductus Barber, from Saba, St. Eustatius and Curaçao. Pronotacantha armata and Aknisus multispinus had not yet been recorded from the Antilles. Jalysus reductus is already known from the region studied; however, it is recorded here for the first time from the Lesser Antilles.