Corixidae of Suriname and the Amazon with records of other neotropical species

The material studied was mainly collected by Dr. P. H. van Doesburg Jr. during his stay in Suriname and by Dr. P. Wagenaar Hummelinck during various collecting trips while visiting Venezuela and Suriname. In addition, specimens from the Western Hemisphere brought together in the Rijksmuseum at Leiden by various collectors, and continental S. American specimens in the Copenhagen Museum have been studied. Finally an interesting set of Corixinae collected in the Amazon region by various workers during investigations sponsored by the “Max-Planck-Institut fur Limnologie, Abt. Tropenökologie”, at Plön (director Prof. Dr. H. Sioli), and the “Instituto Nacional de Pesquisas da Amazonia” at Manaus and Brasilia (director Prof. Dr. D. Batista) have been studied. Thanks are due to the following persons for permission to study the material in their charge: Dr. P. H. van Doesburg Jr. (Leiden Museum), Dr. N. Møller Andersen (Copenhagen Museum), Dr. P. Wagenaar Hummelinck (Zoological Laboratory, Utrecht) and Dr. H. H. Weber (Amazonian water-bugs; Schülp, D.B.R.). Mrs. E. de Groot-Taat kindly corrected the greater part of the manuscript. Dr. I. Lansbury (University Museum, Oxford) read the definitive text critically.