With over 15,800 entries, this dictionary is the most comprehensive reference work of its kind available today. It fulfills the need for an entomology work that combines the concise presentation of a dictionary, a brief etymology for each term, and the inclusion of the general terms one would meet during an entomology course. Entomology is not studied in isolation, therefore the more common terms from the fields of Anatomy, Animal Behavior, Ecology, Embryology, Endocrinology, Evolution, Genetics, Physiology, Taxonomy and Zoogeography, as well as many terms covering sizes, shapes, colors, forms and textures have been included. There is a comprehensive taxonomic coverage of every family and many species that are of particular interest. Appendix 1 gives an outline classification of the subphylum Hexapoda and an alphabetical list of common taxa. Appendix 2 lists Biogeographical/Zoogeographical Regions. Appendix 3 provides an Outline of Geological Time. Appendix 4 presents technical terms for most colors. This dictionary is the standard reference and will be invaluable to anyone with an interest in entomology.