''Lithopsyche'' is a fossil

butterfly Butterflies are insects in the macrolepidopteran clade Rhopalocera from the order Lepidoptera, which also includes moths. Adult butterflies have large, often brightly coloured wings, and conspicuous, fluttering flight. The group compris ...

known from

Oligocene The Oligocene ( ) is a geologic epoch of the Paleogene Period and extends from about 33.9 million to 23 million years before the present ( to ). As with other older geologic periods, the rock beds that define the epoch are well identified but t ...

-aged strata of the

Isle of Wight The Isle of Wight ( ) is a county in the English Channel, off the coast of Hampshire, from which it is separated by the Solent. It is the largest and second-most populous island of England. Referred to as 'The Island' by residents, the Is ...

, England. The sole specimen is too incomplete to allow a certain assignment of a

family Family (from la, familia) is a group of people related either by consanguinity (by recognized birth) or affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its members and of society. Idea ...

, but it was placed on its description as a geometrid and more recently in the

Riodininae __NOTOC__ Riodininae is the largest of the three subfamilies within the metalmark butterfly family, Riodinidae. Classification Riodininae contains the following tribes: * Befrostiini Grishin, 2019 * Calydnini Seraphim, Freitas & Kaminski, 20 ...

. The late

Eocene The Eocene ( ) Epoch is a geological epoch that lasted from about 56 to 33.9 million years ago (mya). It is the second epoch of the Paleogene Period in the modern Cenozoic Era. The name ''Eocene'' comes from the Ancient Greek (''ēṓs'', ...

-aged '' Lithodryas styx'', of

Colorado Colorado (, other variants) is a state in the Mountain West subregion of the Western United States. It encompasses most of the Southern Rocky Mountains, as well as the northeastern portion of the Colorado Plateau and the western edge of the ...

, was originally described with the same genus name.

References

* * * Fossil Lepidoptera

† A dagger, obelisk, or obelus is a typographical mark that usually indicates a footnote if an asterisk has already been used. The symbol is also used to indicate death (of people) or extinction (of species). It is one of the modern descendan ...

Fossil taxa described in 1889 Oligocene insects Prehistoric insects of Europe {{paleo-Lepidoptera-stub