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In August of 2003 and September of 2004, I visited central Panama, staying at the wonderful Canopy Tower, in Soberania National Park (check out my
Links for the Tower's lovely website.). Among the remarkable variety of wildlife I saw at the Tower, and on field trips to the surrounding areas, was an assortment of colorful butterflies
in every shape and color. I did my best to capture as many species as possible on video, but it was certainly an uphill battle for this amateur; they simply move to fast for me! The view decent stills below were collected when the butterflies were kind
enough to land on accessible flowers and wait for a few seconds for me to get my act in gear. This sampling only scratches the surface of the hundreds of species seen (if not identified). I claim no particular knowledge in the field of lepidoptery, although I would bet that
a couple of the critters pictured below are moths rather than butterflies. Since my first visit I have started to put some names to some of these beauties, at least
getting it down to genus (sometimes the best one can do given the remarkable variety of butterflies in the neotropics). Still,
I would welcome input from anyone who can put a name to any of these species; please e-mail me if you can help me out, or if you'd like a larger version of any
of these images. Enjoy!
The first several pictures are of butterflies that belong to the general category of "mimics." While a bright, colorful upperside may confer some reproductive advantages, it can certainly represent a liability in terms of visibility to predators, particularly when at rest. Thus, in many species of tropical
butterflies, natural selection has provided a considerably duller pattern and coloration on the underside of wings, particularly when at rest. The top two images are of large critters known as caligo, or owl butterflies. On the upperside, they are a bright blue reminiscent of the stunning morpho butterflies of the area; when they alight and fold up,
the pattern on their wings appears similar to the face and eye of an owl. In the little info I found on the subject, it is suggested that the striking pattern on the wing serves to redirect attacks by predators; a butterfly can survive some holes in the wings (indeed, I saw a number of caligos with tattered but functional wings). It is also my theory that the pattern may
also serve to divert some attacks entirely, by leading a potential predator to believe that there is an actual owl present, rather than a tasty butterfly snack. The third species, alone at center, is a bit confusing to me. It shows a similar "eye" pattern, but on the upperparts; this was a considerably smaller butterfly, and rested with its wings open, which is where the camouflage pattern exists.
Perhaps this species is a mimic of a mimic, from a completely different family, having evolved in a convergent manner an adaptation that conferred an advantage. The fourth and fifth pictures, at bottom, are of a larger species, a closed morpho butterfly. What I wouldn't give to capture
the beautiful flourescent blue of this creature with wings open!
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