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Harlequin Butterfly, Atlantea tulita


Mariposa arlequín de Puerto Rico

The U. S. Fish and Wildlife has determined that listing the Harlequin Butterfly also known in Spanish as the Quebradillana or Mariposa arlequín de Puerto Rico, a as a threatened or endangered species is warranted under the Endangered Species Act, but that listing is precluded by other higher priority species.  The “warranted but precluded” finding was published in the Federal Register on May 31, 2011.  The harlequin butterfly is now designated as a candidate species.

Harlequin butterly standing on a leaf

Photo 1 - Photo 2 - Photo 3 - Photo 4

Federal Register 12 Month Finding (html) (PDF)

12 Month Finding Literature Cited (pdf)

Press Release English (html)

Press Release Spanish (html)

Poster printable 8 x 11(jpg)


Poster, Harlequin butterfly life stages


Last updated: June 2, 2011