White-barred emperor | |
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Charaxes brutus natalensis | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Arthropoda |
Class: | Insecta |
Order: | Lepidoptera |
Family: | Nymphalidae |
Genus: | Charaxes |
Species: | C. brutus |
Binomial name | |
Charaxes brutus | |
Synonyms | |
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Charaxes brutus, the white-barred emperor or white-barred Charaxes, is a butterfly of the family Nymphalidae. It is found in Africa (see subspecies section for detailed information).
Its flight period is year-round. [3] Notes on the biology of brutus are given by Larsen, T.B. (1991). [4]
Its average wingspan is 60–75 mm in males and 75–90 mm in females. Both wings above black or black-brown with a common white or whitish yellow discal band, which on the forewing is broken up into spots towards the costal margin. Marginal spots wanting; but the hindwing has before the distal margin 2—4 small blue spots, 2 in cellule 1 c and one each in 2 and 3. The under surface has a continuous white discal band; the ground-colour of the basal part is red-brown with the black, white-edged markings peculiar to the genus, which stand out sharply; the marginal part is brown-yellow next to the discal band and then ornamented with large, triangular black spots, distally bordered with pale grey. The hindwing also at vein 3 with a distinct, but short tail. — brutus Cr. The discal band on the upper surface pure white, not or only indistinctly margined with blue, on the forewing also with a spot in cellule 7 and measuring 5 – 9 mm. in breadth in cellule 1 b. Sierra Leone to the Niger. — natalensis Stgr. differs only in having the discal band distinctly margined with blue and the small marginal spots somewhat more distinct than in the type-form. East Africa from Natal to Kilimandjaro. — angustus Rothsch. has the discal band much narrower, only 2. 5–4 mm. in breadth in cellule 1 b of the forewing, and the marginal spots of the forewing very small or entirely suppressed. Old Calabar to Angola. [5]
A full description is given by Rothschild, W. And Jordan, K., 1900 Novitates Zoologicae Volume 7:287-524. page 429 et seq. (for terms see Novitates Zoologicae Volume 5:545-601 )
Life-sized colour plates and description of the larval and pupal stages of C. brutus and additional related species, illustrated by Dr. V. G. L. van Someren, are readily available. [6] The larvae feed on Grewia species, Entandrophagma delevoi , Trichilia dregeana , Blighia unifugata , Melai azedarach , Trichilia emetica , and Ekebergia capensis . [3] [7]
The following subspecies are recognised:
Historical attempts to assemble a cluster of presumably related species into a "Charaxes jasius Group" have not been wholly convincing. More recent taxonomic revision, [12] corroborated by phylogenetic research, allow a more rational grouping congruent with cladistic relationships. Within a well-populated clade of 27 related species sharing a common ancestor approximately 16 mya during the Miocene, [13] 26 are now considered together as The jasius Group. [12] One of the two lineages within this clade forms a robust monophyletic group of seven species sharing a common ancestor approximately 2-3 mya, i.e. during the Pliocene, [13] and are considered as the jasius subgroup. [12] The second lineage leads to 19 other species within the Jasius group, which are split into three well-populated subgroups of closely related species.
The jasius Group (26 species). [12]
Clade 1: the jasius subgroup.
Clade 2: contains the three well-populated additional subgroups (19 species) of the jasius Group, called the brutus, pollux, and eudoxus subgroups. [12]
Further exploration of the phylogenetic relationships amongst existing Charaxes taxa is required to improve clarity.
The rajah and pasha butterflies, also known as emperors in Africa and Australia, make up the huge type genus of the brush-footed butterfly subfamily Charaxinae, or leafwing butterflies. They belong to the tribe Charaxini, which also includes the nawab butterflies (Polyura). Charaxes are tropical Old World butterflies, with by far the highest diversity in sub-Saharan Africa, a smaller number from South Asia to Melanesia and Australia, and a single species in Europe. They are generally strong flyers and very popular among butterfly collectors.
Charaxes pelias, the protea emperor or protea charaxes, is a butterfly of the family Nymphalidae, and is endemic to the Cape Provinces in South Africa.
Charaxes castor, the giant emperor or giant charaxes, is a butterfly of the family Nymphalidae. It is found throughout the Afrotropical realm below the Sahel.
Charaxes druceanus, the silver-barred emperor or silver-barred charaxes, is a butterfly of the family Nymphalidae. It is found throughout tropical Africa.
Charaxes etesipe, the savannah charaxes or scarce forest emperor, is a butterfly of the family Nymphalidae.
Charaxes lactetinctus, the blue patch charaxes, is a butterfly in the family Nymphalidae. It is found in Guinea, Ivory Coast, Ghana, Togo, Benin, Nigeria, Cameroon, the Republic of the Congo, the Central African Republic, the Democratic Republic of the Congo, Uganda, Kenya, Ethiopia and possibly Sudan.
Charaxes hansali, the cream-banded charaxes, is a butterfly in the family Nymphalidae. It is found in Tanzania, Rwanda, Kenya, Uganda, Sudan, Ethiopia, Somalia, Saudi Arabia, Yemen and Oman.
Charaxes junius is a butterfly in the family Nymphalidae. It is found in Ethiopia and Sudan. The habitat consists of forests and woodland savanna.
Charaxes andara is a butterfly in the family Nymphalidae. It is found in eastern and southern Madagascar, where it is found in Afrotropical forests. It is very similar to Charaxes brutus, of which it has been considered a subspecies.
Charaxes ansorgei is a butterfly in the family Nymphalidae. It is found in Sudan, the Democratic Republic of Congo, Uganda, Rwanda, Burundi, Kenya, Tanzania, Malawi and Zambia. The habitat consists of montane forest on altitudes between 2,000 and 3,000 meters. The larvae feed on Bersama abyssinica abyssinica, Bersama abyssinica englerana and Bersama paullinoides.It was once considered to be a very rare species but it is relatively common in dense and inaccessible montane forests
Charaxes pollux, the black-bordered charaxes, is a butterfly in the family Nymphalidae.
Charaxes tectonis, the mountain silver-barred charaxes, is a butterfly in the family Nymphalidae. It is found in Nigeria and Cameroon. The habitat consists of sub-montane and montane forests.
Charaxes phraortes is a butterfly in the family Nymphalidae. It is found in north-eastern Madagascar. The habitat consists of wet coastal forests.
Charaxes andranodorus is a butterfly in the family Nymphalidae. It is found on Madagascar.
Charaxes eudoxus, the Eudoxus charaxes, is a butterfly in the family Nymphalidae. It is found in Guinea, Sierra Leone, Liberia, Ivory Coast, Ghana, Nigeria, Cameroon, Equatorial Guinea, Gabon, the Republic of the Congo, Angola, the Democratic Republic of the Congo, the Central African Republic, Sudan, Uganda, Rwanda, Burundi, Kenya, Tanzania, Cameroon and Zambia.
Charaxes lucyae is a butterfly in the family Nymphalidae. It is found in Tanzania.
Charaxes richelmanni is a butterfly in the family Nymphalidae. It is found in Cameroon, Gabon, the Republic of Congo, the Central African Republic, the Democratic Republic of Congo and Tanzania. The habitat consists of lowland evergreen forests.
Charaxes numenes, the lesser blue charaxes, is a butterfly in the family Nymphalidae. It is found in Senegal, Guinea-Bissau, Guinea, Sierra Leone, Liberia, Ivory Coast, Ghana, Benin, Nigeria, Equatorial Guinea, Cameroon, Gabon, the Republic of the Congo, Angola, the Democratic Republic of the Congo, Zambia, the Central African Republic, Sudan, Ethiopia, Uganda, Kenya and Tanzania.
Charaxes baumanni, the little charaxes, is a butterfly in the family Nymphalidae. It is found in Sudan, Kenya, the Democratic Republic of the Congo, Uganda, Rwanda, Tanzania, Zambia, Malawi, Mozambique and Zimbabwe. The habitat consists of open forests and woodland.
Charaxes saturnus, the foxy charaxes or koppie charaxes, is a butterfly that flies through most of the Savannah of the Eastern and Southern Afrotropical realm, and also occurs in suitable forest habitat locations including the forest belt of west-central Africa.