162 / FIELDS OF INSTRUCTION

trol, ecology, toxicology, plant quarantine, commercial entomology, life history and
habits, biology, and medical and veterinary entomology. May be repeated with
change of content up to a maximum of 9 credits.
EY 607-INSECT TAXONOMY. 5 credits
 Prerequisites: EY 408, EY 460. Systems of classification, the basis of sys-
tematic entomology, and rules of nomenclature. Practice in identification of im-
mature and adult insects in the field and laboratory.
EY 608-COMPARATIVE ANATOMY OF THE HEXAPODA. 5 credits
 Prerequisite: EY 408. Comparative study of the external and internal anatomy
of representative insects in each insect order.
EY 611-SPECIAL TOPICS IN ENTOMOLOGY AND NEMATOLOGY. 1 credit
 Reports and discussions pertaining to selected topics announced in advance.
May be repeated with change of content up to a maximum of 4 credits. Graded
on an S/U basis.
EY 612-INSECT PHYSIOLOGY. 5 credits
 Prerequisites: EY 408, organic chemistry or equivalent. Physiological study
of the various organs and tissues of insects.
EY 613-GROWTH AND DEVELOPMENT IN INSECTS. 3 credits
 Prerequisite: ZY 570 or BCH 511. An analysis of insect development, with
emphasis on determination, pattern formation, regeneration, and hormone action.
EY 615-INSECT BEHAVIOR. 5 credits
 Prerequisite: EY 612. Principles of animal behavior as they apply to insects.
Reproductive, feeding, defensive, migratory, and social behavior of insects. Field
and laboratory techniques.
EY 616-INSECT ECOLOGY. 5 credits
 Prerequisite: EY 612. Interrelations of insects and their physical and biotic en-
vironment. Population dynamics and control of population size. Field and laboratory
techniques.
EY 618-INSECT TOXICOLOGY. 5 credits
 Prerequisites: EY 301, organic chemistry or equivalent. Insecticides and acari-
cides: structure, toxic action, metabolism, hazards, residues in relation to health.
Acquired resistance to pesticides. Research methods in toxicology.
EY 620-MEDICAL ENTOMOLOGY. 5 credits
 Prerequisite: EY 420. Arthropods (except mosquitoes) parasitic on man: col-
lection, identification, and bionomics of local species.
EY 621-MOSQUITOES. 5 credits
 Prerequisite: EY 420. Mosquitoes: collection, identification, bionomics, and
relationship to the health of man.
EY 622-BIOLOGICAL CONTROL OF INSECTS. 5 credits
 Prerequisite: EY 301. Principles involved in the natural and biological control
of insects.
EY 623-IMMATURE INSECTS. 5 credits
 Prerequisite: EY 460. Structure and identification of immature forms of insects,
especially the Holometabola. An insect collection determined to family is required.
EY 624-ACAROLOGY. 5 credits
 Prerequisite: EY 301. Morphology, phylogeny, taxonomy, and economic im-
portance of mites.
EY 625-TECHNIQUES IN MEDICAL ENTOMOLOGY. 5 credits
 Demonstration and use of modern techniques, equipment, and procedures in