Current Topics in Vector Research

1 Diapause and Related Phenomena in Culex Mosquitoes: Their Relation to Arbovirus Disease Ecology.- Terminology and Characteristics of Diapause.- Methods.- Diapause Occurrence in Culex Species.- Diapause Induction.- Diapause Maintenance.- Diapause Termination.- Autogeny.- Overwinter Survival of Arboviruses.- Summary and Conclusions.- References.- 2 New World Vectors of the Leishmaniases.- Classification of American Phlebotominae and Leishmania.- Development of Leishmania in Sand Flies.- Incrimination of Vectors.- Geographic Distribution of Vectors.- Some Habits of Sand Flies as Related to Leishmaniasis Transmission.- Lutzomyia Vectors and Associated Leishmania.- Concluding Remarks.- References.- 3 Whitefly Transmission of Plant Viruses.- Geminiviruses.- Carlaviruses.- Closteroviruses.- Viruses with Possible Relationships to the Potyviruses.- Viruses with Possible Relationships to the Luteoviruses.- Rod-Shaped DNA Viruses.- Viruses with Possible Relationships to the Nepoviruses.- Whitefly-Transmitted Viruses with Unknown Relationships.- References.- 4 Virus-Membrane Interactions Involved in Circulative Transmission of Luteoviruses by Aphids.- Characteristics of Luteoviruses.- The Route of Luteoviruses Through Aphid Vectors.- Observations of Luteovirus Acquisition.- Observations of Luteovirus Transmission.- Discussion.- Future Perspectives.- References.- 5 Ecology and Evolution of Leafhopper-Grass Host Relationships in North American Grasslands.- Methods.- Patterns in Cicadellid Host Selection.- Cicadellid Components of Grassland Guilds.- Evolution of Cicadellid Host Selection.- Conclusion.- Summary.- References.- 6 Feeding Strategies and the Guild Concept Among Vascular Feeding Insects and Microorganisms.- Xylem Feeders.- Phloem Feeders.- Mesophyll Feeders.- Overlap Between Feeding Modes.- Vascular Prokaryotes: Guild Members?.- Summary.- References.