In the past two decades, dr Osvaldo di lorio reared several parasitic wasp species during his studies of argentine cerambycidae. Among these specimens I identified the first records of the genera mentioned above for argentina. The aim of this article is to publish this novel information on the distribution and biology of these poorly known genera of the family braconidae in the neotropics, and to describe the second species of the genus shawius, including the male, currently unknownb