Dragonfly Predation

[butrfly at epix.net]

Every year I conduct a Labor Day butterfly walk for the a State Park in 
Pennsylvania. Last year, part way through our journey, two small children
came running to me with their hands full of butterfly wings. When 
questioned on where the wings came from, I was told that they were found 
beneath a plant. Upon investigation of said plant we found the wings 
perhaps two dozen assorted swallowtails. The plant it seemed was a 
favorite perch of a drangonfly. Situated along a woodland path it made 
the perfect place for the dragonfly to sit and wait for lunch to arrive.
Rick Mikula