Asthenidia Moth

I think this one is probably nominate subspecies Asthenidia transversaria transversaria, with the other subspecies salax, flying further north in Costa Rica, and subspecies columbiana flying further south in Colombia. Bill Oehlke

It is hard to believe there isn't a photo reference for this animal on the web. I identified it from the "Butterflies and Moths of Costa Rica" by Chacon y Montero by Instituto Nacional de Biodiversidad. ISBN 978-9968-927-23-9

Is this also an Upside Down Moth? See: http://www.projectnoah.org/spottings/5898424

While I have not been able to identify it, I have found others that are similar. Perhaps this information will help you in your search. Common White Wave (Cabera pusaria) Pale Beauty (Campaea perlata) Both of these are Geometridae. I know that leaves a large Family but that's all I was able to find.

I saw one very similar in Vietnam. http://www.projectnoah.org/spottings/5898424