When Is It a Fly?

John Merwin asks whether the tiny Yo-Zuri crankbait, which is no larger than a #10 dry, qualifies as a fly and settles on the answer Lee Wulff gave him long ago: “a fly, by definition, had nothing added to it that would impart action in the water. No spinner blade, propeller, wobbling plate or lip, wiggly plastic tail, and so on.” On Fieldand Stream.com.