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Pseudacraea Eurytus
''Pseudacraea eurytus'', the false wanderer, is a butterfly of the family Nymphalidae. It is found in Africa. Description The numerous forms of this group dolomena'' and ''Pseudacraea rubrobasalis">rubrobasalis''may be known at once by the long, distinct black streaks on the interneural folds of the hindwing; forewing always with 5 rounded black spots in the cell and 1 or 2 at the base of cellule 1b. The butterflies stand in interesting but very complicated mimetic relations with the '' Planema'' species which fly together with them. In the males the forewing is more pointed with the distal margin straight or slightly in the females the forewing very obtusely rounded with the distal margin curved. * ''Ps. eurytus'' L. (46 c). The hindmarginal spot of the forewing is large, reaches vein 3 and has its proximal edge sharp and straight, but does not cover the base of cellules 1b and 2; hindwing beneath at the base reddish, in the male above red-yellow, towards the distal margin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carl Linnaeus
Carl Linnaeus (23 May 1707 – 10 January 1778), also known after ennoblement in 1761 as Carl von Linné,#Blunt, Blunt (2004), p. 171. was a Swedish biologist and physician who formalised binomial nomenclature, the modern system of naming organisms. He is known as the "father of modern Taxonomy (biology), taxonomy". Many of his writings were in Latin; his name is rendered in Latin as and, after his 1761 ennoblement, as . Linnaeus was the son of a curate and was born in Råshult, in the countryside of Småland, southern Sweden. He received most of his higher education at Uppsala University and began giving lectures in botany there in 1730. He lived abroad between 1735 and 1738, where he studied and also published the first edition of his ' in the Netherlands. He then returned to Sweden where he became professor of medicine and botany at Uppsala. In the 1740s, he was sent on several journeys through Sweden to find and classify plants and animals. In the 1750s and 1760s, he co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
KwaZulu-Natal
KwaZulu-Natal (, also referred to as KZN) is a Provinces of South Africa, province of South Africa that was created in 1994 when the government merged the Zulu people, Zulu bantustan of KwaZulu ("Place of the Zulu" in Zulu language, Zulu) and Natal Province. It is located in the southeast of the country, with a long shoreline on the Indian Ocean. It shares borders with three other provinces and the countries of Mozambique, Eswatini and Lesotho. Its capital is Pietermaritzburg, and its largest city is Durban, which is also the Port of Durban, city with the largest port in sub-saharan Africa. It is the second-most populous province in South Africa, after Gauteng. Two areas in KwaZulu-Natal have been declared UNESCO World Heritage Sites: the iSimangaliso Wetland Park and the uKhahlamba Drakensberg Park. These areas are important to the surrounding ecosystems. During the 1830s and early 1840s, the northern part of what is now KwaZulu-Natal was established as the Zulu Kingdom. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Butterflies Of Africa
Butterflies are winged insects from the lepidopteran Superfamily (taxonomy), superfamily Papilionoidea, characterized by large, often brightly coloured wings that often fold together when at rest, and a conspicuous, fluttering flight. The oldest butterfly fossils have been dated to the Paleocene, about 56 million years ago, though molecular evidence suggests that they likely originated in the Cretaceous. Butterflies have a four-stage Biological life cycle, life cycle, and like other Holometabola, holometabolous insects they undergo Holometabolism, complete metamorphosis. Winged adults lay eggs on the food plant on which their larvae, known as caterpillars, will feed. The caterpillars grow, sometimes very rapidly, and when fully developed, pupate in a chrysalis. When metamorphosis is complete, the pupal skin splits, the adult insect climbs out, expands its wings to dry, and flies off. Some butterflies, especially in the tropics, have several generations in a year, while othe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Limenitidinae
The Limenitidinae are a subfamily of butterflies that includes the admirals and relatives. The common names of many species and genera reference military ranks or – namely the Adoliadini – titles of nobility (e.g., count, duke, earl, and marquis), in reference to these butterflies' large size, bold patterns, and dashing flight. In particular, the light stripe running lengthwise across the wings of many Limenitidini has reminded earlier authors of Officer (armed forces), officers' (e.g. admiral, commander, Commodore (rank), commodore) shoulder marks and epaulets. In flight, many of these butterflies have the habit of flapping their wings, so the (usually) bright upperside and the crypsis, cryptic underside alternate for the observer, then gliding for prolonged distances, with the motionless wings held outstretched. The common names of some Limenitidinae – "aeroplanes", "clippers", or "Flying and gliding animals, gliders" – refer to this flight pattern. Systematics Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Batesian Mimicry
Batesian mimicry is a form of mimicry where a harmless species has evolved to imitate the warning signals of a harmful species directed at a predator of them both. It is named after the English naturalist Henry Walter Bates, who worked on butterflies in the rainforests of Brazil. Batesian mimicry is the most commonly known and widely studied of mimicry complexes, such that the word mimicry is often treated as synonymous with Batesian mimicry. There are many other forms however, some very similar in principle, others far separated. It is often contrasted with Müllerian mimicry, a form of mutually beneficial convergence between two or more harmful species. However, because the mimic may have a degree of protection itself, the distinction is not absolute. It can also be contrasted with functionally different forms of mimicry. Perhaps the sharpest contrast here is with aggressive mimicry where a predator or parasite mimics a harmless species, avoiding detection and improving its ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Underdominance
In genetics, underdominance, also known as homozygote advantage, heterozygote disadvantage, or negative overdominance," is the opposite of overdominance. It is the selection against the heterozygote, causing disruptive selection and divergent genotypes. Underdominance exists in situations where the heterozygotic genotype is inferior in fitness to either the dominant or recessive homozygotic genotype. Compared to examples of overdominance in actual populations, underdominance is considered more unstable and may lead to the fixation of either allele. An example of stable underdominance may occur in individuals who are heterozygotic for polymorphisms that would make them better suited for one of two niches. Consider a situation in which a population is completely homozygotic for an "A" allele, allowing exploitation of a particular resource. Eventually, a polymorphic "a" allele may be introduced into the population, resulting in an individual who is capable of exploiting a differe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Donella Viridifolia
''Donella viridifolia'', commonly known as fluted milkwood, is a potentially large (up to 20 m tall) species of evergreen milkwood tree that occurs in East African coastal forests, southerly coastal forest mosaics and in some inland forests of the tropics and subtropics. Range and habitat It is native to Kenya, Mozambique, Malawi, eastern Zimbabwe, Eswatini and South Africa ( KZN and Eastern Cape provinces). Its habitat is coastal forest northwards of East London, and montane forests of the Chimanimani range and Malawi. Description The trunk may be fluted at the base, and the greyish bark is fairly smooth and mottled. Young branches and the undersides of leaves are covered in reddish indumentum In biology, an indumentum (Latin, literally: "garment") is a covering of trichomes (fine "hairs") on a plant or of bristles (rarely scales) of an insect. Plants The indumentum on plants can have a wide variety of functions, including as .... The blunt-tipped, oblong l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Englerophytum Natalense
''Englerophytum natalense'', the silver-leaf milkplum, is a medium-sized, evergreen tree that occurs along forested escarpments from East Africa to South Africa South Africa, officially the Republic of South Africa (RSA), is the Southern Africa, southernmost country in Africa. Its Provinces of South Africa, nine provinces are bounded to the south by of coastline that stretches along the Atlantic O .... The leaves are alternately arranged or spiralled, and to some extent crowded near the ends of branches. They are glossy green to greyish green above and covered in silvery hairs below. The stem is straight and the bark smooth. Young branches are covered with dense brownish hairs. The plant contains a milky latex. It is a larval food plant of the butterflies '' Euptera pluto kinugnana'', '' Pseudacraea boisduvalii trimeni'', '' P. eurytus imitator'' and '' P. lucretia''. Similar species ''Manilkara discolor'' has rough bark, attains a larger size, and is native to drier ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Englerophytum Magalismontanum
''Englerophytum magalismontanum'', commonly known as stamvrug, is an evergreen tree that mostly grows in rocky places. It has an extensive range, from northern KwaZulu-Natal northwards along the east coast and into the southern African interior, and northwards into tropical Africa. Nomenclature ''E. magalismontanum'' was at various times in the past known under the names ''Bequaertiodendron magalismontanum'' (see: J. C. Bequaert), ''Pouteria magalismontana'' and ''Chrysophyllum magalismontanum''. The specific name refers to the Magaliesberg from where the species was first described, and where it commonly occurs. Description This tree is usually known by its Afrikaans name ''stamvrug'' ("stem fruit") which refers to its habit of bearing densely clustered fruit on the trunk and thicker branches (cauliflory), a common feature of this family. The fruit are tasty and sweet with very little pink flesh - they are rich in latex and are leathery-skinned. The seed is large, smooth and h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mimusops Obovata
''Mimusops'' is a genus of plants in the family Sapotaceae, described as a genus by Linnaeus in 1753. ''Mimusops'' is native to tropical and subtropical regions of Asia, Africa, Australia, and various oceanic islands.Allaby, Michael. 1998. ''A Dictionary of Plant Sciences''. Oxford University Press, New York Species , Plants of the World Online Plants of the World Online (POWO) is an online taxonomic database published by the Royal Botanic Gardens, Kew. History Following the Convention on Biological Diversity, the Royal Botanic Gardens in Kew launched Plants of the World Online i ... accepted these species: References Sapotaceae genera Taxa named by Carl Linnaeus Paleotropical flora Taxonomy articles created by Polbot {{Sapotaceae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wingspan
The wingspan (or just span) of a bird or an airplane is the distance from one wingtip to the opposite wingtip. For example, the Boeing 777–200 has a wingspan of , and a wandering albatross (''Diomedea exulans'') caught in 1965 had a wingspan of , the official record for a living bird. The term wingspan, more technically 'extent' , is also used for other winged animals such as pterosaurs, bats, insects, etc., and other aircraft such as ornithopters. In humans, the term wingspan also refers to the arm span, which is the distance between the length from the end of an individual's arm (measured at the fingertips) to the individual's fingertips on the other arm when raised parallel to the ground at shoulder height. Wingspan of aircraft The wingspan of an aircraft is always measured in a straight line, from wingtip to wingtip, regardless of wing shape or sweep. Implications for aircraft design and animal evolution The lift from wings is proportional to their area, so the h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bematistes
''Bematistes'' is a genus of butterflies in the family Nymphalidae. The genus is often included in ''Acraea''. Species *''umbra'' species group: **'' Bematistes adrasta'' (Weymer, 1892) **'' Bematistes aganice'' (Hewitson, 1852) **'' Bematistes alcinoe'' (Felder, 1865) **'' Bematistes consanguinea'' (Aurivillius, 1893) **'' Bematistes elongata'' (Butler, 1874) **'' Bematistes epiprotea'' (Butler, 1874) **'' Bematistes excisa'' (Butler, 1874) **'' Bematistes formosa'' (Butler, 1874) **'' Bematistes macaria'' (Fabricius, 1793) **'' Bematistes macarista'' (Sharpe, 1906) **'' Bematistes obliqua'' (Aurivillius, 1913) **'' Bematistes persanguinea'' (Rebel, 1914) **'' Bematistes poggei'' (Dewitz, 1879) **'' Bematistes pseudeuryta'' (Godman & Salvin, 1890) **'' Bematistes quadricolor'' Rogenhöfer, 1891 **'' Bematistes scalivittata'' (Butler, 1896) **'' Bematistes umbra'' (Drury, 782 **'' Bematistes vestalis'' (Felder, 1865) *''epaea'' species group: **'' Bematistes epaea'' (Cramer, 1779 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
