Unique series with glass colored insert. First issue Greta Oto butterfly.
Fineness (% purity): 92.50
Denomination (USD): $10
Weight (g): 50 g
Diameter (mm): 42×42
Year of Issue: 2014
Country: Republic of Palau
Exterior Decoration: Glass Insert, Colored
The Glasswinged butterfly (Greta oto) is a brush-footed butterfly, and is a member of the subfamily Danainae, tribe Ithomiini, subtribe Godyridina. G. oto adults also exhibit a number of interesting behaviors, such as long migrations and lekking among males.
The Glasswinged Butterfly (Greta oto) is one of the most spectacular butterflies on the planet. This isn’t because of its bright coloration or unique shape, however, but rather its one glaring and fabulous characteristic: its wings are almost completely transparent!
Most butterflies have very tiny scales which cover the wing membranes. These scales are what give monarch butterflies their orange and black hues or morpho butterflies their vivid blue coloring. Unlike these butterflies, between the veins of the Glasswinged Butterfly there are no scales – just translucent membranes – which means the wings allow you to look straight through them! That’s why the Spanish name for these butterflies is ‘espejitos’ which literally translates to ‘little mirrors.’
The membranes, when positioned in just the right way, will refract light so that incredible, breathtaking colors are shown in the butterfly’s wings. It’s akin to a clear soap bubble catching the light and exposing its vast array of colors within. When in flight, however, it’s nearly impossible to spot the butterfly since its wings are basically clear.
It’s a very neat trick to avoid being eaten – don’t be seen at all! What does this butterfly do when its a caterpillar, though? Well, the larvae are brightly colored purple and red which equals a big “stay away from me” in the animal kingdom. If predators still go after the caterpillar, they’re in for a terrible surprise. Caterpillars of the Glasswinged Butterfly will actually feed on a plant of the genus ‘Cestrum.’ The common name for this plant is nightsha… and it’s highly poisonous. The caterpillars absorb the toxins into their bodies from the plant and these will even materialize into the adult’s body after the caterpillars undergo metamorphosis. So, both the caterpillar and the adult are poisonous and any predator would do best to avoid munching on them.
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