On The Hymenoptera Of Colorado is a book written by William Harris Ashmead in 1890. The book is focused on the study of hymenopteran insects, which include wasps, bees, and ants, found in the state of Colorado. The author provides a comprehensive description of new species of hymenoptera that he discovered during his research. Additionally, the book contains detailed notes on the behavior, habitat, and distribution of these insects. The author also includes a list of all the species of hymenoptera that have been found in Colorado up to that point. This book is a valuable resource for entomologists, biologists, and anyone interested in the study of insects.This scarce antiquarian book is a facsimile reprint of the old original and may contain some imperfections such as library marks and notations. Because we believe this work is culturally important, we have made it available as part of our commitment for protecting, preserving, and promoting the world’s literature in affordable, high quality, modern editions, that are true to their original work.