Descriptions of three new Praociini from Peninsula Valdés

Tribal characteristics. Body shape among the Praociini is heterogeneous but some characters common to all species are: oval metacoxae, elytra embracing the body ventrally, antennae short, reaching 3/4 along lateral margin of pronotum or shorter, with the last three antennomeres broadened (Kulzer 1958). Flores (2001) added the following constant characters at the tribe level: base of mandible two times higher with respect to apex, prothorax semimobile, and distance between meso- and metacoxae exceeding half mesocoxal length.