Abstract
It has been my privilege to study a series of staphylinid beetles collected from termite colonies by Alfred E. Emerson on Barro Colorado Island, Panama Canal Zone, at Kartabo, British Guiana, and on the island of Trinidad; by Wolfgang von Hagen in Ecuador; and by Karl P. Schmidt on the Solomon Islands. I am indebted to these gentlemen for the opportunity of studying this material. The determinations of the host termites were made by A. E. Emerson.