''Prodryas persephone'' is an extinct species of brush-footed

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 a single specimen from the

Chadronian The Chadronian age within the North American Land Mammal Ages chronology is the North American faunal stage typically set from 38,000,000 to 33,900,000 years BP, a period of . It is usually considered to fall within the Eocene epoch. The Chadroni ...

-aged Florissant Shale Lagerstatte of 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'', ...

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 ...

. ''P. persephone'' is the first fossil butterfly to be found in North America, and is exquisitely well preserved. Its closest extant relatives are the mapwings and African admirals of the genera ''

Hypanartia ''Hypanartia'', commonly called mapwings, is a butterfly genus in the family Nymphalidae found from Mexico Mexico ( Spanish: México), officially the United Mexican States, is a country in the southern portion of North America. It is bor ...

'' and ''

Antanartia ''Antanartia'', commonly called (African) admirals, is a genus in the family Nymphalidae The Nymphalidae are the largest family of butterflies, with more than 6,000 species distributed throughout most of the world. Belonging to the superfamily ...

'', respectively.

Significance

The

type specimen In biology, a type is a particular specimen (or in some cases a group of specimens) of an organism to which the scientific name of that organism is formally attached. In other words, a type is an example that serves to anchor or centralizes th ...

, now held at the

Museum of Comparative Zoology A museum ( ; plural museums or, rarely, musea) is a building or institution that cares for and displays a collection of artifacts and other objects of artistic, cultural, historical, or scientific importance. Many public museums make thes ...

Harvard University Harvard University is a private Ivy League research university in Cambridge, Massachusetts. Founded in 1636 as Harvard College and named for its first benefactor, the Puritan clergyman John Harvard, it is the oldest institution of highe ...

, was the first fossil butterfly to be found in North America, and has been described as "possibly the best fossil butterfly specimen ever found". The appearance of a figure of ''Prodryas'' in Samuel Hubbard Scudder's book ''Frail Children of the Air'' influenced the paleontologist Frank M. Carpenter to embark on his career. Scudder exhibited the specimen at the

Royal Entomological Society of London The Royal Entomological Society is devoted to the study of insects. Its aims are to disseminate information about insects and improving communication between entomologists. The society was founded in 1833 as the Entomological Society of Londo ...

in December 1893.

Description

The single known specimen of ''P. persephone'' is a

compression fossil A compression fossil is a fossil preserved in sedimentary rock that has undergone physical compression. While it is uncommon to find animals preserved as good compression fossils, it is very common to find plants preserved this way. The reason f ...

, discovered by the " homesteader turned naturalist"

Charlotte Hill Charlotte Hill (1849–1930) was a homesteader born in Indiana who contributed to paleontology through finding several significant fossil within the Florissant Fossil Beds. She sold many fossils to other collectors and investigators to earn mone ...

, in

shale Shale is a fine-grained, clastic sedimentary rock formed from mud that is a mix of flakes of clay minerals (hydrous aluminium phyllosilicates, e.g. kaolin, Al2 Si2 O5( OH)4) and tiny fragments (silt-sized particles) of other minerals, especiall ...

deposits of

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'', ...

age of the

Florissant Formation The Florissant Formation is a sedimentary geologic formation outcropping around Florissant, Teller County, Colorado. The formation is noted for the abundant and exceptionally preserved insect and plant fossils that are found in the mudstones an ...

near Florissant, Colorado. The butterfly has a wing length of , and the specimen is complete, although the trailing edge of one hindwing was originally covered. The upper surface of the animal is visible, and the legs can only barely be seen. The head is turned to one side, revealing the

mouthparts Mouthparts may refer to: * The parts of a mouth ** Arthropod mouthparts The mouthparts of arthropods have evolved into a number of forms, each adapted to a different style or mode of feeding. Most mouthparts represent modified, paired append ...

as well as both antennae. The wing venation is exquisitely preserved, and even the patterns of color on the wings are clearly visible. Individual wing scales can be discerned in parts of the forewing.

Taxonomy

Based on Charlotte Hill's specimen, Samuel Hubbard Scudder described the new genus and species ''Prodryas persephone'' in 1878, although the first figure only appeared in 1899. The

specific epithet In taxonomy, binomial nomenclature ("two-term naming system"), also called nomenclature ("two-name naming system") or binary nomenclature, is a formal system of naming species of living things by giving each a name composed of two parts, bo ...

''persephone'' alludes to

Persephone In ancient Greek mythology and religion, Persephone ( ; gr, Περσεφόνη, Persephónē), also called Kore or Cora ( ; gr, Κόρη, Kórē, the maiden), is the daughter of Zeus and Demeter. She became the queen of the underworld aft ...

, wife of

Hades Hades (; grc-gre, ᾍδης, Háidēs; ), in the ancient Greek religion and myth, is the god of the dead and the king of the underworld, with which his name became synonymous. Hades was the eldest son of Cronus and Rhea, although this also ...

, and the daughter of

Zeus Zeus or , , ; grc, Δῐός, ''Diós'', label= genitive Boeotian Aeolic and Laconian grc-dor, Δεύς, Deús ; grc, Δέος, ''Déos'', label= genitive el, Δίας, ''Días'' () is the sky and thunder god in ancient Greek relig ...

and

Demeter In ancient Greek religion and Greek mythology, mythology, Demeter (; Attic Greek, Attic: ''Dēmḗtēr'' ; Doric Greek, Doric: ''Dāmā́tēr'') is the Twelve Olympians, Olympian goddess of the harvest and agriculture, presiding over crops, ...

. (Two other species named by Scudder in the same work also bear names referring to the

underworld The underworld, also known as the netherworld or hell, is the supernatural world of the dead in various religious traditions and myths, located below the world of the living. Chthonic is the technical adjective for things of the underwo ...

Greek mythology A major branch of classical mythology, Greek mythology is the body of myths originally told by the ancient Greeks, and a genre of Ancient Greek folklore. These stories concern the origin and nature of the world, the lives and activities o ...

: '' Lithopsyche styx'' (referring to the river

Styx In Greek mythology, Styx (; grc, Στύξ ) is a river that forms the boundary between Earth (Gaia) and the Underworld. The rivers Acheron, Cocytus, Lethe, Phlegethon, and Styx all converge at the centre of the underworld on a great marsh, ...

) and '' Jupitellia charon'' (referring to

Charon In Greek mythology, Charon or Kharon (; grc, Χάρων) is a psychopomp, the ferryman of Hades, the Greek underworld. He carries the souls of those who have been given funeral rites across the rivers Acheron and Styx, which separate the ...

).) Although placed in a separate genus, ''Prodryas persephone'' is thought to be closely related to ''

'', and may be even closer to ''

''.

References

External links

* * {{Taxonbar, from=Q4047418

† 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 ...

Eocene insects Prehistoric insects of North America Fossil taxa described in 1878 Fossil Lepidoptera Prehistoric insect genera

Florissant Formation

Significance

Description

Taxonomy

References

Further reading

External links