Figure 30 in The bibliography of and taxa proposed by Charles D. Michener

Figure 30. Twice the blessings. The cover of the second edition of Michener's, The Bees of the World (2007, Johns Hopkins University Press). This monumental edition, growing over the first by 40 densely packed pages, achieved the seemingly impossible when it made an already excellent work better. Eight further color plates were added, enhancing the text, and those genera and subgenera proposed since the first edition received Mich's uniquely informed critique alongside the incorporation of abundant new biological information.