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Smallest Butterfly in North America

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The Western Pygmy Blue (Brephidium exilis or Brephidium exile) is one of the smallest butterflies in the world and is the smallest in North America. It has a wingspread of about half an inch.

More info:
http://en.wikipedia.org/wiki/Western_pygmy_blue
http://www.butterfliesandmoths.org/species/Brephidium-exilis

Images from:
http://upload.wikimedia.org/wikipedia/commons/e/e1/BrephidiumExilisMUpUnAC1.jpg

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