Evolution: Fossils reveal butterflies' history

The world’s largest butterfly tree of life is helping researchers determine where the winged insects originated when they first appeared on Earth about 100 million years ago.

How butterflies conquered the world: A new 'family tree' traces their 100-million-year journey across the globe

A global phylogeny of butterflies reveals their evolutionary history, ancestral hosts and biogeographic origins

Fossil evidence reveals butterflies and moths lived 50m years earlier than thought, Zoology

A Powder snow Butterfly

Butterfly - Wikipedia

Smithsonian Insider – Remarkable butterfly look-alike lived 50 million years before butterflies appeared

Oldest butterfly fossils ever discovered – DW – 01/11/2018

Oldest butterfly fossils ever discovered – DW – 01/11/2018

Tools of the trade: MicroCT reveals native structure and functional morphology of organs that drive caterpillar–ant interactions

Yale research reveals ancient moth's true colors

DNA tells story of butterfly evolution – Research News

Prehistoric Lepidoptera - Wikipedia

Lepidoptera - Wikipedia

Monarch Life Cycle

Fossils reveal butterfly 'tree of life' and origins