| 2003 Photograph, Eastern Tiger Swallowtail (Papilio glaucus, Swallowtail Butterfly Family, Papilionidae) on Milkweed with a Silver-spotted Skipper on the right,
Huntley Meadows, Alexandria, Virginia, © 2020. An interesting side-line on this 
      butterfly is its scientific name.  "Glaucus" means bluish-gray in 
      Latin.  Linnaeus, who established the scientific name, had a black form female 
      which he used in naming  the species based on her color.  Even though the 
      majority of females and all males are the typical tiger-stripe form, the 
      name had been established and the Tiger has been, scientifically 
      speaking, the 
      Bluish-gray Swallowtail ever since.
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