Hymenoptera of the World: An Identification Guide to Families

This is THE book for those who wish to identify wasps, sawflies, and related insects to family level. It is not yet outdated, and it contains highly reliable information for all of the superfamilies and families of Hymenotpera then recognized. Each chapter is written by one of the foremost experts of the group in question. The keys are among the best ever designed, as they contain valuable comparative information presented in an easy-to-read outline format. Almost every couplet in every key in the book is accompanied by an appropriate diagram a rarity in most expert-level identification references. An essential reference for Hymenoptera taxonomy.