The material studied was mainly collected by Drs. P. H. VAN DOESBURG, Jr. during his stay in Surinam and during a visit to Venezuela. In addition, specimens from the Western Hemisphere brought together in the Rijksmuseum at Leiden by various collectors and some samples taken in Surinam by Dr. P. WAGENAAR HUMMELINCK have been studied. Some specimens in the author’s collection, with unknown collector were also examined. The material has been deposited at the Rijksmuseum van Natuurlijke Historie at Leiden (LM); the Zoologisch Museum at Utrecht (UM) and the collection of the author (N). The collection of Drs. P. H. VAN DOESBURG now belongs to the Leiden Museum and is consequently indicated LM too.