Diagnoses, descriptions and illustrations of male genitalia are given for four new species of the Polycentropus gertschi group, Polycentropus cressae n. sp., Polycentropus neblinensis n. sp., Polycentropus quadricuspidis n. sp., and Polycentropus silex n. sp. The former two are from Venezuela and the latter two from Ecuador. In addition, a diagnosis, description and set of male genitalia illustrations are provided for Polyplectropus beccus, a new species from Ecuador. The generic placement of this species, while currently appropriate, may require reclassification pending completion of ongoing studies on Neotropical polycentropodids.
- New species