''Charaxes hadrianus'', the Hadrian's white charaxes, is a

butterfly Butterflies are winged insects from the lepidopteran superfamily Papilionoidea, characterized by large, often brightly coloured wings that often fold together when at rest, and a conspicuous, fluttering flight. The oldest butterfly fossi ...

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 Papilionoidea, they are usually medium-sized to large butterflies. Most species ha ...

.This is a very rare charaxes, especially in West Africa. Individuals come to fruit-baited traps. Schultze states that freshly captured males emit a smell of violets.

Taxonomy

''Charaxes hadrianus'' is the sole member of the ''Charaxes hadrianus'' group. The type locality is Cameroun.

Distribution and habitat

This species can be found in

Guinea Guinea, officially the Republic of Guinea, is a coastal country in West Africa. It borders the Atlantic Ocean to the west, Guinea-Bissau to the northwest, Senegal to the north, Mali to the northeast, Côte d'Ivoire to the southeast, and Sier ...

Sierra Leone Sierra Leone, officially the Republic of Sierra Leone, is a country on the southwest coast of West Africa. It is bordered to the southeast by Liberia and by Guinea to the north. Sierra Leone's land area is . It has a tropical climate and envi ...

Liberia Liberia, officially the Republic of Liberia, is a country on the West African coast. It is bordered by Sierra Leone to Liberia–Sierra Leone border, its northwest, Guinea to Guinea–Liberia border, its north, Ivory Coast to Ivory Coast–Lib ...

Ivory Coast Ivory Coast, also known as Côte d'Ivoire and officially the Republic of Côte d'Ivoire, is a country on the southern coast of West Africa. Its capital city of Yamoussoukro is located in the centre of the country, while its largest List of ci ...

, south-western

Ghana Ghana, officially the Republic of Ghana, is a country in West Africa. It is situated along the Gulf of Guinea and the Atlantic Ocean to the south, and shares borders with Côte d’Ivoire to the west, Burkina Faso to the north, and Togo to t ...

Nigeria Nigeria, officially the Federal Republic of Nigeria, is a country in West Africa. It is situated between the Sahel to the north and the Gulf of Guinea in the Atlantic Ocean to the south. It covers an area of . With Demographics of Nigeria, ...

Cameroon Cameroon, officially the Republic of Cameroon, is a country in Central Africa. It shares boundaries with Nigeria to the west and north, Chad to the northeast, the Central African Republic to the east, and Equatorial Guinea, Gabon, and the R ...

Gabon Gabon ( ; ), officially the Gabonese Republic (), is a country on the Atlantic coast of Central Africa, on the equator, bordered by Equatorial Guinea to the northwest, Cameroon to the north, the Republic of the Congo to the east and south, and ...

, the

Republic of the Congo The Republic of the Congo, also known as Congo-Brazzaville, the Congo Republic or simply the Congo (the last ambiguously also referring to the neighbouring Democratic Republic of the Congo), is a country located on the western coast of Central ...

, the

Central African Republic The Central African Republic (CAR) is a landlocked country in Central Africa. It is bordered by Chad to Central African Republic–Chad border, the north, Sudan to Central African Republic–Sudan border, the northeast, South Sudan to Central ...

, the

Democratic Republic of the Congo The Democratic Republic of the Congo (DRC), also known as the DR Congo, Congo-Kinshasa, or simply the Congo (the last ambiguously also referring to the neighbouring Republic of the Congo), is a country in Central Africa. By land area, it is t ...

and western

Uganda Uganda, officially the Republic of Uganda, is a landlocked country in East Africa. It is bordered to the east by Kenya, to the north by South Sudan, to the west by the Democratic Republic of the Congo, to the south-west by Rwanda, and to the ...

. The habitat consists of wet primary forests.

Description

''Charaxes hadrianus'' has a wingspan reaching about . The upperside of the forewings is white, with a brown basal area and a black apical part showing several white spots. The underside of the forewings is grey, with a large black eyespot. The upperside of the hindwings is white, with black outer margins. The underside of the hindwings is crossed vertically midway by a red band, with a row of small black spot on the outer margin.

Description in Seitz

''Hadrianus'' Group. This group is only represented by a single species of characteristic appearance. Hindwing above and both wings beneath with white ground-colour. The black transverse streaks in the basal part of the under surface are very fine and in part indistinct or entirely suppressed; in cellule lb of the forewing near the hinder angle a large, deep black spot. The tails of the hindwing are obtuse, the one at vein 2 about 2 mm., that at vein 4 nearly 5 mm. in length. Sexes alike in colour and markings. ''Ch. hadrianus'' Ward Forewing at the base red-brown nearly to vein 3, then black with a white median band, at the hindmargin about 15 mm. in breadth, but rapidly narrowing anteriorly and terminating at vein 5, with two small white discal spots in cellules 5 and 6, white submarginal spots in 2-6 and a white marginal spot in lb. Hindwing above narrowly red-brown at the base, with black submarginal and marginal streaks at the distal margin. Beneath the hindwing has in the middle a thick black transverse line, distally accompanied by a deeply dentate red-brown transverse band; this transverse band shows through above. A beautiful but rare species, occurring from the Niger to the Congo.Aurivillius, .O.. 1908-1924. In: Seitz, A. ''Die Gross-Schmetterlinge der Erde'' Band 13: Abt. 2, ''Die exotischen Gross-Schmetterlinge, Die afrikanischen Tagfalter'', 1925, 613 Seiten, 80 Tafeln (The Macrolepidoptera of the World 13).Alfred Kernen Verlag, Stuttgart.

Biology

The larvae feed on ''

Ouratea ''Ouratea'' is a genus of flowering plants in the family Ochnaceae. It includes over 290 species native to the tropical Americas, from Mexico and Cuba to southern Brazil, to Cameroon and Gabon in West-Central Africa, and to Ascension Island in t ...

'' species (''Ouratea reticulata'') and ''

Ochna ''Ochna'' is a genus comprising 79 species of Evergreen, evergreen trees, shrubs and shrublets belonging to the flowering plant family Ochnaceae. These species are native to tropical woodlands of Africa, Madagascar, the Mascarene Islands, Mascare ...

'' species.

References

Seitz, A. ''Die Gross-Schmetterlinge der Erde'' 13: Die Afrikanischen Tagfalter. Plate XIII 31
*

Victor Gurney Logan Van Someren Victor Gurney Logan Van Someren (1886 in Melbourne – 24 July 1976) was a zoologist and entomologist. Van Someren was born in Australia. He attended George Watson's College and studied zoology at University of Edinburgh. He was also a dentis ...

, 1972 Revisional notes on African ''Charaxes'' (Lepidoptera: Nymphalidae). Part VIII. ''Bulletin of the British Museum'' (Natural History) (Entomology)215-26

External links

''Charaxes hadrianus'' images
at

Consortium for the Barcode of Life The Consortium for the Barcode of Life (CBOL) was an international initiative dedicated to supporting the development of DNA barcoding as a global standard for species identification. CBOL's Secretariat Office is hosted by the National Museum of ...

''Charaxes hadrianus lecerfi'' images
at BOLD
Images of ''C. hadrianus hadrianus''

Royal Museum for Central Africa The Royal Museum for Central Africa (RMCA) (; ; ), communicating under the name AfricaMuseum since 2018, is an ethnography and natural history museum situated in Tervuren in Flemish Brabant, Belgium, just outside Brussels. It was originally b ...

(Albertine Rift Project)
Butterflies of Ghana
{{Taxonbar, from=Q5074033 Butterflies described in 1871 hadrianus Butterflies of Africa Taxa named by Christopher Ward (entomologist)