Reviews.- Neuropeptides: Unity and Diversity, A Molecular Approach.- Isolation Techniques for Insect Neuropeptides.- Insect Neurodevelopment: Gene Cascades in Drosophila.- Modulation and Repair of the Insect Blood-Brain Barrier.- Drug Design.- Insect Neuroendocrinology: Its Past; Its Present; Future Opportunities.- Summaries of Recent Research.- Neurochemistry.- Overview: Progress in Insect Neurochemistry.- Bombyx Eclosion Hormone.- Expression of the Eclosion Hormone Gene in the Brain of Manduca sexta.- Sequencing and Biological Activities of Neuroparsins Isolated from Corpora Cardiaca of Locusta migratoria.- Isolation and Structure of Three Neuropeptides from the Corpora Cardiaca of the American Cockroach.- Isolation, Purification, and Characterization of a Diuretic Peptide(AP/I) from the House Cricket, Acheta domesticus.- Members of the AKH/RPCH-Peptide Family in Coleoptera.- Structures in the AKH Family of Neuropeptides.- Quaternary Structure and Hydrophobic Interactions of Drosophila Acetylcholinesterase in Wild Type Flies and in Several Mutants of the Ace Locus.- Insect Hypertrehalosemic Hormone: Structure-Activity Studies in Periplaneta americana.- Insect Hypertrehalosemic Hormone: Structure-Activity Studies in Blaberus discoidalis.- The Role of Mosquito Oostatic Hormone in the Regulation of Midgut Serine Proteases.- Recent Developments in the Use of HPLC for the Purification of House Fly Oostatic Hormone.- Characterization of Testis Ecdysiotropin(TE) from Brains of Lepidoptera.- Binding of Synthetic Dipteran Neuropeptide Preparations to Head and Abdominal Proteins of 3-Day-Old Face Flies.- Neuropeptide Metabolism: Properties of an Endopeptidase from Heads of Drosophila melanogaster.- Degradation of Dipteran Neuropeptides by Musca autumnalis.- Metabolism of Inositolphosphates in the Cerebral Ganglia of the American Cockroach, Periplaneta americana L..- Tyramine-ß-Hydroxylase Activity in the Synganglion of the Cattle Tick Boophilus microplus (Acari: Ixodidae).- An Ecologically Acceptable Strategy for the Use of Genetically Engineered Baculovirus Pesticides.- Neurophysiology.- Overview: Progress in Insect Neurophysiology.- Gene Expression During Pupal-Adult Neurogenesis in Manduca sexta.- Receptivity Terminating Factor in Heliothis zea and Its Interaction with PBAN.- Regulation of Sex Pheromone Biosynthesis in Chrysodeixis chalcites and Heliothis peltigera by PBAN.- Stimulation of de novo Pheromone Biosynthesis by In Vitro Pheromone Glands of Heliothis spp.- Regulation of Sex Pheromone Titer in Mated Gypsy Moth Females.- Changes in Number and Size of Corpus Allatum Cells of Blattella germanica During Oocyte Maturation.- Patterns of Corpora Allata Activity in Ovariectomized Blattella germanica.- Protein Kinase C and Calcium Are Involved in the Action of Juvenile Hormone on Follicle Cells of Rhodnius prolixus.- Voltage-Dependent Sodium and Calcium Channels of the Corpora Allata of the Cockroach Diploptera punctata.- Juvenile Hormone Production by Wild Type and Apterous4 Mutant Drosophila melanogaster Corpora Allata In Vitro.- Developmental Profile of Prothoracicotropic Hormone (PTTH) Activity in the Gypsy Moth, Lymantria dispar.- Endocrinology of Embyrogenesis and Late Embryonic Diapause in the Gypsy Moth, Lymantria dispar.- Prothoracicotropic Hormone(PTTH) Regulation of the Larval-Pupal Molt in the Gypsy Moth Lymantria dispar: Observations on the Development of a Larval In Vivo Bioassay.- Developmental Profiles for the Regulation of Ecdysteroid Production by the Prothoracic Glands of Female Gypsy Moth, Lymantria dispar, Pupae.- Developmental Changes in Lymantria dispar (L.) Prothoracicotropic Hormone Activity from Embryo to Adult.- Prothoracicotropic Hormone and Ecdysteroid Ketoreductase from Pre-Hatch Eggs of the Gypsy Moth, Lymantria dispar.- Ecdysiotropins and Ketoreductase in the Brain of the European Corn Borer, Ostrinia nubilalis, Promote the Production of Ecdysone and 3-Dehydroecdysone by Prothoracic Glands of the Gypsy Moth, Lymantria dispar.- Molt Inhibition by Azadirachtin; Effects on Prothoracicotropic Hormone, Prothoracic Glands, and Ecdysteroid Titers in Manduca sexta Pupae.- Metabolic Changes in the Nerve Tissue of the Silkworm, Bombyx mori, Following Repeated Topical Application of Endosulfan.- Precocene II Suppresses the Biosynthesis of Juvenile Hormone, Ecdysteroids, and Vitellogenin in the Black Blowfly, Phormia regina Meigen.- Regulation of Vitellogenesis in Gypsy Moth, Lymantria dispar (L.) Fifth-Instar Larvae.- 6-Hydroxydopamine Retardation of Ovarian Development in the Housefly, Musca domestica L..- The Hypolipaemic Hormone of the Locust.- Demonstration of a Human Atrial Natriuretic Peptide-Like Material in the Stable Fly, Stomoxys calcitrans.- Diuresis in Adult Heliothis zea: Neural and Humoral Regulation.- Characterization of FMRF-amide-Like Peptides in the Locust Shistocerca gregaria.- FMRF-amide in the Corn Earworm (H. zea): Immunoreactivity in the Midgut and Cerebral Nervous System.- Uptake and Binding of Ponasterone A in the Brain of Fifth Stadium Manduca sexta Larvae.- The Role of Ecdysone on the Chitinase Enzyme in the Development of Spodoptera litura.- Prospective Chemical Regulators of Female Reproductive Muscle Function in the Stable Fly Stomoxys calcitrans.- Serotonergic Modulation of the Locust Mandibular Closer Muscle.- Octopaminergic Modulation of Sense Organs Involved in Locust Flight.- Neuroanatomy.- Overview: Progress in Insect Neuroanatomy and Neurogenesis.- Ultrastructure of a Sensory Receptor in the Abdominal Body Wall of Rhodnius prolixus.- The Association of Proctolin with the Female Reproductive Tissue of Rhodnius prolixus.- Serotonin-Like Immunoreactive Dorsal Unpaired Median Neurons in Rhodnius prolixus.- Immunocytochemical Localization of Leucomyo-suppressin (LEM-MS) in the CNS of the Cockroach, Leucophaea maderae and the Stable Fly, Stomoxys calcitrans.- A Vasopressin-Like Neurohemal System in Lymantria dispar and Manduca sexta.- Histocytochemical Identification of Neurosecretory Cells in the Brain of Short Horned Grasshopper.- List of Participants.- Author Index.