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10 hours ago It’s been roughly 80 years since the Xerces blue butterfly was last spotted flitting about on pastel wings across coastal California sand dunes. But scientists are still learning about the insect. New research on DNA from a nearly century-old museum specimen shows that the butterfly was a distinct species. What’s more, that finding means that the Xerces blue butterfly ( The butterfly used to live only on the San Francisco Peninsula. But by the early 1940s, less than a century after its formal scientific description in the 1850s, the gossamer-winged butterfly had vanished. Its rapid disappearance is attributed to the loss of habitat and native plant food as a result of urban development and, possibly, an influx of invasive ants likely spread though the shipment of goods. 

San francisco bayUnited statesCornell universitySan francisco peninsulaEl segundoAkito kawaharaFelix greweLos angelesCorrie moreauFlorida museum of natural history in gainesvilleChicago field museumField museumSan franciscoFlorida museumNatural historyசான் பிரான்சிஸ்கோ வளைகுடா