Table of Contents

Introduction.- An appeal for quality in taxonomic work.- Scope of the work.- Acknowledgements.- Section 6: Hemiptera.- Key to the suborders.- Key to the infraorders of Heteroptera in South America.- 6.1 Morphology.- 6.2 Ecology.- 6.3 Preservation and examination.- 6.4 Zoogeography.- 6.5 Taxonomic problems.- 6.6 Suggestions for improvement.- 6.7 Keys to aquatic Heteroptera in South America.