Leif Richardson

titles listed

    Bumble Bees of North America. An Identification Guide

      Paul Williams

      Robbin Thorp

      Leif Richardson

      Sheila Colla

    More than ever before, there is widespread interest in studying bumblebees and the critical role they play in our ecosystems. Bumble Bees of North America is the first comprehensive guide to North American bumblebees to be published in more than a century. Richly illustrated with colour photographs, diagrams, range maps, and graphs of seasonal activity patterns, this guide allows amateur…