With its disappearance, 'we sort of lost a piece of the biodiversity puzzle that made up the tapestry of the San Francisco Bay area,' a study co-author said.
. The insect, the Xerces blue butterfly, died out in the mid-20th century as a result of pronounced habitat loss, according to the Florida Museum of Natural History. Its extinction raised awareness of the importance of ecological conservation.
First described in 1852, the Xerces blue butterfly was known for its iridescent sapphire-colored wings. Once common, the butterfly could be seen flitting about among the sand dunes of the San Francisco Peninsula, its native habitat, through the early 1940s. Around that time, it disappeared off the face of the earth, much to lepidopterists' dismay.
"We sort of lost a piece of the biodiversity puzzle that made up the tapestry of the San Francisco Bay area when this species was driven to extinction," Corrie Moreau, Ph.D., a professor of arthropod biosystematics and biodiversity at Cornell University and a co-author of the study, toldThe Xerces blue butterfly was recently confirmed to be the first U.S. insect to go extinct as a result of human activity. This is a stock image of a butterfly in Dubai's Butterfly Garden.
Earlier this month, the new study resolved a decades-old debate about the butterfly's taxonomy. Since it went extinct,"some have questioned whether it was truly a distinct species, or simply an isolated population of another living species," called the silvery blue, the study authors wrote. Published in the July issue of the journal, their findings have confirmed that the Xerces blue butterfly was indeed a distinct species, making its loss all the more tragic.
By sequencing DNA harvested from a portion of a 93-year-old specimen at the Field Museum of Natural History in Chicago, the authors wrote, they were able to determine that the butterfly possessed a unique genetic lineage. While it is closely related to the silvery blue, it belongs to a different evolutionary clade, the scientific term for a single individual and all its descendants.
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