Your photo is so clear, I was pondering the possibility that it was from the inner support strands of this creatures wings, that engineers may have gotten the idea for the spans that give such amazing strength to suspension bridges. The design appears to be almost identical. Thank-you for allowing me a close look at that.
Tom's Nature-up-close Photography and Mindfulness Blog 
Your photo is so clear, I was pondering the possibility that it was from the inner support strands of this creatures wings, that engineers may have gotten the idea for the spans that give such amazing strength to suspension bridges. The design appears to be almost identical. Thank-you for allowing me a close look at that.