Jelski’s Star-frontlet (Helianthea dichroura), John Gould This fine Humming-bird was discovered by Mr. Jelski, who has recently distinguished himself by his zoological discoveries in Peru, near Maraynioc in that country; and he proposed the name of dichroura for it, which was adopted by Dr. Taczanowski in his original description of the bird. 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."