Theodore Dru Alison Cockerell, entomologist and systematic biologist, published nearly 4,000 papers, some of them only a few lines long. Cockerell’s special interest in bees led him to describe and name specimens from the United States, the West Indies, Honduras, the Philippines, Africa, and Asia. He published at least 5,500 names for species and varieties of bees and almost 150 names for genera and subgenera. It has been estimated that this represented over a quarter of all known species of bees during his lifetime. Above all, however, Cockerell was a general systematist. In addition to extensive studies of bees and scale insects, he published papers on slugs, moths, fish scales, fungi, roses and other flowers, mollusks, and a wide variety...