Xerces blue

English

Alternative forms

Noun

Xerces blue (plural Xerces blues)

  1. A recently extinct species of gossamer-winged butterfly (Lycaenidae), Glaucopsyche xerces.
    • 2010, Robert Michael Pyle, Mariposa Road:
      Last seen at the Presidio, the Xerces blue finally passed from existence in 1943.
    • 2012, Peggy L Fiedler, Conservation Biology, page 180:
      In fact, the xerces blue survived that first wave of habita destruction, only to succumb in the 1940s to continuing development especially of sand dune habitats.
    • 2015, Rebecca Solnit, ‘Middle-Aged and Dishevelled’, London Review of Books, vol. 28 no. 6:
      The Brown Satyr butterfly, endemic to San Francisco, where I live, became extinct sometime in the 19th century, and the Xerxes Blue vanished during World War Two when its Golden Gate habitat was overtaken by military expansion.

References
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