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Oospila albicoma
mountain rainforest in Costa Rica
Geometridae, Geometrinae, Oospila albicoma. Very close to Oospila concinna, but I think yours is Oospila albicoma.
http://www.flickr.com/photos/mario_marti...
http://www.treknature.com/gallery/photo2...
http://www.flickr.com/photos/birdernatur...
http://www.boldsystems.org/index.php/Tax...