This volume of Insects of Hawaii is a systematic treatment of the native bees of the Hawaiian Islands. Believed to be descendants of a single female that arrived in the ancient archipelago millions of years ago, the native yellow-faced bees are prime examples of extraordinary evolutionary radiation. Despite their evolutionary and ecological importance, no comprehensive work has been published on them until now.

A total of fifty-nine species are recognized, including nine new species. Detailed keys for the identification of species are provided for males and, for the first time,...