Figure 21 in The bibliography of and taxa proposed by Charles D. Michener

Figure 21. The cover of Mich's extraordinarily influential, The Social Behavior of the Bees (1974, Harvard University Press). Born of the era in which the foundations of sociobology were set in place (e.g., Wilson, 1975), this book distilled all of what was known regarding the social organization and evolution of societies among bees. It was a particularly powerful text when placed against the backdrop of seminal works that had appeared around the same time on termites (Krishna & Weesner, 1969, 1970) and on social insects in general (Wilson, 1971). It remains unrivaled to this day and immensely relevant. A companion book on the biology and behavior of solitary bees was discussed, according to documents in the University of Kansas Archives, but never undertaken.