More ace acetate sunglasses: Tim Van Steenbergen knows his grizzled skipper from his Corsican swallowtail

So it seems I started something when I raved about the acetate used in Derek Lam's 2010 sunglass style, Mauro. For I have now been nudged toward Tim Van Steenbergen's 2010 sunglasses, or more specifically Theo, by Tim Van Steenbergen...

So where do grizzled skippers and Corsican swallowtails come into it? TVS's sunnies are all named after butterflies - hover over each image for Latin and common names. Four more Tim Van Steenbergen shades through here... (or below if you can see them already...)