1 Ribosomal RNA Genes of the Anopheles gambiae Species Complex. - The Anopheles gambiae Complex. - General Characteristics of Dipteran rDNA. - Anopheles gambiae rDNA: General Structure. - Intergenic Spacer Structure. - Intervening rDNA Sequences. - Applied Uses of rDNA. - Evolution of rDNA Within the Complex. - Summary. - References. - 2 Neuroendocrine and Midgut Endocrine Systems in the Adult Mosquito. - The Nervous System. - The Neuroendocrine System. - The Midgut Endocrine System. - Neuropeptide-Like Immunoreactivity in the Nervous System and Midgut Endocrine System. - Comparison of the Neuroendocrine and Midgut Endocrine Systems. - References. - 3 Gametocytemia and Infectiousness in Falciparum Malaria: Observations and Models. - Gametocytogenesis. - Patterns of Gametocytemia. - Circadian Rhythm. - Infectiousness Versus Gametocytemia. - Reservoir of Infection. - Immune Response. - Gametocytemia and Infectiousness in Mathematical Models of Malaria. - Conclusions. - References. - 4 Some Aspects of the Biology of Phlebotomine Sandfly Vectors. - Colonization. - Sandflies as Reservoirs and Vectors of Viruses. - Age Determination. - Sugar Feeding. - Species Groups and Complexes. - Chemically Mediated Behavior. - References. - 5 Vector-Spirochete Relationships in Louse-Borne and Tick-Borne Borrelioses with Emphasis on Lyme Disease. - The Behavior of Louse-Borne and Tick-Borne Spirochetes in Their Vectors. - The Behavior of Borrelia theileri in Its Tick Vectors. - The Behavior of the Lyme Disease Spirochete Borrelia burgdorferi in Its Tick Vectors. - The Relationship of Borrelia burgdorferi to Nonspecific Tick Vectors and Other Hematophagous Arthropods. - Borrelia burgdorferi: Subject of a Complex Development Cycle?. - Conclusion. - References. - 6 Distribution of Viruses and Their Nematode Vectors. - Nematode-Transmitted Viruses as Plant Pathogens. - Causal Agents. - Vectors. - VirusVector Associations. - Discussion. - References. - 7 Detecting Plant Viruses in Their Vectors. - Aphids. - Plant and Leafhoppers. - Nematodes. - Mites. - Fungi. - Beetles. - Other Vector Groups. - Concluding Remarks. - References. - 8 Insect-Borne Viruses of Rice. - Geographical Distribution. - Vector Species. - Vector-Virus Interactions. - Nucleic Acids and Proteins. - References. - 9 Homopteran Transmission of Xylem-Inhabiting Bacteria Alexander. - Historical Background. - Pathogens. - The Xylem Environment. - Vectors. - Epidemiology. - Summary. - References. - 10 Plant Pathogenic Spiroplasmas and Their Leafhopper Vectors. - Spiroplasmas and Their Habitats. - Leafhoppers That Transmit Spiroplasmas. - Transmission Terminology. - Spiroplasma citri. - Spiroplasma kunkelii. - Spiroplasma phoeniceum. - SpiroplasmaLeafhopper Relationships. - Concluding Remarks. - Summary. - References. - 11 Semipersistent Transmission of Viruses by Vectors with Special Emphasis on Citrus Tristeza Virus. - Viruses. - Vectors. - VirusVector Relationships. - Epidemiology and Control. - Principles of the Approaches to Control. - Conclusion and Summary. - References. Language: English