Nabokov Theory on Butterfly Evolution Is Vindicated

"And in a speculative moment in 1945, he came up with a sweeping hypothesis for the evolution of the butterflies he studied, a group known as the Polyommatus blues. He envisioned them coming to the New World from Asia over millions of years in a series of waves. "

http://www.nytimes.com/2011/02/01/science/01butterfly.html?_r=2