Insect Migration
Edited and introduced by Maxwell Knight
Scientists have only recently discovered that butterflies, ladybirds, bumble-bees, dragonflies, and other insects regularly traverse hundreds of miles in their annual migrations.
C. B. WILLIAMS , F.R.S., the leading authority on insect migration, discusses with JOHN BURTON the annual movements across the Thames Estuary, and with R. A. FRENCH the British flights recorded this year, including the spectacular landfall of the diamond-back moth.
Produced by Jeffery Boswall