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Fossilized lacewing butterfly

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February 6, 2016

A photo of the modern owl butterfly (Caligo Memnon) shown below a fossilized Kalligrammatid lacewing (Oregramma illecebrosa) shows some of the convergent features independently evolved by the two distantly-related insects, including wing eyespots and wing scales. Image via James Di Loreto / Smithsonian — Fossilized Kalligrammatid lacewing (Oregramma illecebrosa). Image via James Di Loreto / Smithsonian

Here’s a fossil of a large butterfly-like insect known as a Kalligrammatid lacewing, which has been extinct for more than 120 million years. Scientists at the Smithsonian’s National Museum of Natural History used new fossil analysis techniques to learn that these ancient lacewings were surprisingly similar to modern butterflies, which did not appear on Earth for another 50 million years.

Deborah Byrd

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Deborah Byrd created the EarthSky radio series in 1991 and founded EarthSky.org in 1994. Today, she serves as Editor-in-Chief of this website. She has won a galaxy of awards from the broadcasting and science communities, including having an asteroid named 3505 Byrd in her honor. A science communicator and educator since 1976, Byrd believes in science as a force for good in the world and a vital tool for the 21st century. "Being an EarthSky editor is like hosting a big global party for cool nature-lovers," she says.