Melissa blue has a subspecies of which endangered butterfly?
Melissa blue:  The Karner blue ("Plebejus melissa samuelis") is a subspecies of the Melissa blue, and was described by the novelist/lepidopterist Vladimir Nabokov. Karner blue: The Karner blue ("Plebejus melissa samuelis") is an endangered subspecies of small blue butterfly which was once found in significant numbers in the Miller section of Gary, Indiana community of the Indiana Dunes National Park.
Karner blue