THIS little book is one of “Wiley's Technical Series,” for the use of “various” schools in the United States of America, where such educational matters of economic importance are well looked after, ...

Insect pests of crops cause enormous damage and expense worldwide. Many crop pests and plant diseases they transmit have been successfully controlled in the past with agro-chemicals but many have ...

Text-books of applied entomology are usually compiled according to one of two methods. In one type of book the various injurious insects are classified and enumerated under their respective orders and ...

Introduction -- Dichotomous keys -- External anatomy -- Insect development -- Taxonomic terminology -- Taxonomy, classification, and nomenclature -- Phylum Arthropoda ...