This Butterfly Was the First in North America That People Made Extinct
This Butterfly Was the First in North America That People Made Extinct New research suggests the iconic Xerces blue butterfly may have been its own species. The 93-year-old Xerces blue butterfly specimen, located in the collections of the Field Museum in Chicago, used in the study.Credit...The Field Museum July 21, 2021 More than a century ago, a bluish butterfly flitted among the sand dunes of the Sunset District in San Francisco and laid its eggs on a plant known as deerweed. As the city’s development overtook the dunes and deerweed, the butterflies vanished, too. The last Xerces blue but...