shimmering with blue-green light, perfectly matched the mood. But it wasn’t a dye that lent that dress (still viewable at Smallhythe Place in Kent) its eerie, glittering glamor; it was the wing cases ...

This microscopic image shows individual scales attached to the exoskeleton of the beetle Lamprocyphus augustus, and how the scales glow iridescent green because the fingernail-like material in the ...