White-tip (Urosticte Benjamini), John Gould This beautiful species, one of the late discoveries in this lovely tribe of birds, differs in so many particulars from every other member of the family, that I have been constrained to give it a new generic title, and have selected that of Urosticte as indicative of the conspicuous white terminations of the four central tail-feathers; in nearly every other instance it is the outer feathers that are thus marked, and not the central ones, and it is the circumstance of the latter being thus decorated in the present bird which renders it so remarkable. This illustration has been restored to its original vibrancy by enhancing colors and removing unwanted marks. A monograph of the Trochilidæ, or family of humming-birds was published between 1849 and 1887 by English ornithologist John Gould. This monumental work depicts and describes all the known species of hummingbirds at the time - comprising 418 lithographic plates and information on 537 species."