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Danaus Petilia
''Danaus petilia'', the lesser wanderer, is a species of butterfly in the nymphalid Danainae subfamily. It is a migratory species which is found in Australia and in tropical countries. Previously considered a subspecies of '' Danaus chrysippus'', this species came about through allopatric speciation. The deep sea barrier called Lydekker's Line Richard Lydekker (; 25 July 1849 – 16 April 1915) was an English natural history, naturalist, geologist and writer of numerous books on natural history. Biography Richard Lydekker was born at Tavistock Square in London. His father was Gerard ..., located by the Molluccas and the Sahul Shelf, was what separated ''Danaus petilia'' from ''Danaus chrysippus cratippus''. Its caterpillars feed on native and introduced cotton bush species. A common butterfly with nomadic populations, particularly in central Australia where many native host plants die of during dry periods, and in south eastern Australia where it is too cold for them ...
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Caspar Stoll
Caspar Stoll (Hesse-Kassel, probably between 1725 and 1730 – Amsterdam, December 1791) was a naturalist and entomologist, best known for the completion of ''De Uitlandsche Kapellen'', a work on butterflies begun by Pieter Cramer. He also published several works of his own on other insect groups. Stoll's 1787 publication on stick insects, mantises, and their relatives is also well known. It was translated into French in 1813. Life Aside from official records, few biographical details are known. Caspar Stoll was born in Hesse-Kassel but lived most of his life in The Hague and Amsterdam. In the latter, he worked as a functionary (either a clerk or a porter) at the Admiralty of Amsterdam He married his first wife, Maria Sardijn, on 18 January 1761, they married in a church in Scheveningen. Her brother was a tax collector and a notary. Stoll appears to have worked for a notary as well: several times he put his signature as a witness. They had four children baptised in The Hague. Th ...
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Species
In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. Other ways of defining species include their karyotype, DNA sequence, morphology, behaviour or ecological niche. In addition, paleontologists use the concept of the chronospecies since fossil reproduction cannot be examined. The most recent rigorous estimate for the total number of species of eukaryotes is between 8 and 8.7 million. However, only about 14% of these had been described by 2011. All species (except viruses) are given a two-part name, a "binomial". The first part of a binomial is the genus to which the species belongs. The second part is called the specific name or the specific epithet (in botanical nomenclature, also sometimes i ...
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Butterfly
Butterflies are insects in the macrolepidopteran clade Rhopalocera from the Order (biology), order Lepidoptera, which also includes moths. Adult butterflies have large, often brightly coloured wings, and conspicuous, fluttering flight. The group comprises the large superfamily (zoology), superfamily Papilionoidea, which contains at least one former group, the skippers (formerly the superfamily "Hesperioidea"), and the most recent analyses suggest it also contains the moth-butterflies (formerly the superfamily "Hedyloidea"). Butterfly fossils date to the Paleocene, about 56 million years ago. Butterflies have a four-stage life cycle, as like most 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 o ...
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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 have a reduced pair of forelegs and many hold their colourful wings flat when resting. They are also called brush-footed butterflies or four-footed butterflies, because they are known to stand on only four legs while the other two are curled up; in some species, these forelegs have a brush-like set of hairs, which gives this family its other common name. Many species are brightly coloured and include popular species such as the emperors, monarch butterfly, admirals, tortoiseshells, and fritillaries. However, the under wings are, in contrast, often dull and in some species look remarkably like dead leaves, or are much paler, producing a cryptic effect that helps the butterflies blend into their surroundings. Nomenclature Rafinesque introduced ...
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Danainae
Danainae is a subfamily of the family Nymphalidae, the brush-footed butterflies. It includes the Daniadae, or milkweed butterflies, who lay their eggs on various milkweeds on which their larvae (caterpillars) feed, as well as the clearwing butterflies (Ithomiini), and the tellervini. Some 300 species of Danainae exist worldwide. Most of the Danaini are found in tropical Asia and Africa, while the Ithomiini are diverse in the Neotropics. Tellervini are restricted to Australia and the Oriental region. Four species are found in North America: the monarch butterfly (''Danaus plexippus''), the queen (''Danaus gilippus''), the tropical milkweed butterfly (''Lycorea cleobaea''), and the soldier butterfly (or "tropic queen", ''Danaus eresimus''). Of these, the monarch is by far the most famous, being one of the most recognizable butterflies in the Americas. Taxonomy Milkweed butterflies are now classified as the subfamily Danainae within the family Nymphalidae; however, the previous ...
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Australia
Australia, officially the Commonwealth of Australia, is a Sovereign state, sovereign country comprising the mainland of the Australia (continent), Australian continent, the island of Tasmania, and numerous List of islands of Australia, smaller islands. With an area of , Australia is the largest country by area in Oceania and the world's List of countries and dependencies by area, sixth-largest country. Australia is the oldest, flattest, and driest inhabited continent, with the least fertile soils. It is a Megadiverse countries, megadiverse country, and its size gives it a wide variety of landscapes and climates, with Deserts of Australia, deserts in the centre, tropical Forests of Australia, rainforests in the north-east, and List of mountains in Australia, mountain ranges in the south-east. The ancestors of Aboriginal Australians began arriving from south east Asia approximately Early human migrations#Nearby Oceania, 65,000 years ago, during the Last Glacial Period, last i ...
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Subspecies
In biological classification, subspecies is a rank below species, used for populations that live in different areas and vary in size, shape, or other physical characteristics (morphology), but that can successfully interbreed. Not all species have subspecies, but for those that do there must be at least two. Subspecies is abbreviated subsp. or ssp. and the singular and plural forms are the same ("the subspecies is" or "the subspecies are"). In zoology, under the International Code of Zoological Nomenclature, the subspecies is the only taxonomic rank below that of species that can receive a name. In botany and mycology, under the International Code of Nomenclature for algae, fungi, and plants, other infraspecific ranks, such as variety, may be named. In bacteriology and virology, under standard bacterial nomenclature and virus nomenclature, there are recommendations but not strict requirements for recognizing other important infraspecific ranks. A taxonomist decides whether ...
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Danaus Chrysippus
''Danaus chrysippus'', also known as the plain tiger, African queen, or African monarch, is a medium-sized butterfly widespread in Asia, Australia and Africa. It belongs to the Danainae subfamily of the brush-footed butterfly family Nymphalidae. Danainae primarily consume plants in the genus ''Asclepias'', more commonly called milkweed. Milkweed contains toxic compounds, cardenolides, which are often consumed and stored by many butterflies. Because of their emetic properties, the plain tiger is unpalatable to most predators. As a result, its coloration is widely mimicked by other species of butterflies. The plain tiger inhabits a wide variety of habitats, although it is less likely to thrive in jungle-like conditions and is most often found in drier, wide-open areas. ''D. chrysippus'' encompasses three main subspecies: ''D. c. alcippus, D. c. chrysippus,'' and ''D. c. orientis.'' These subspecies are found concentrated in specific regions within the larger range of the entire spe ...
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Allopatric Speciation
Allopatric speciation () – also referred to as geographic speciation, vicariant speciation, or its earlier name the dumbbell model – is a mode of speciation that occurs when biological populations become geographically isolated from each other to an extent that prevents or interferes with gene flow. Various geographic changes can arise such as the movement of continents, and the formation of mountains, islands, bodies of water, or glaciers. Human activity such as agriculture or developments can also change the distribution of species populations. These factors can substantially alter a region's geography, resulting in the separation of a species population into isolated subpopulations. The vicariant populations then undergo genetic changes as they become subjected to different selective pressures, experience genetic drift, and accumulate different mutations in the separated populations' gene pools. The barriers prevent the exchange of genetic information betwe ...
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Lydekker's Line
Richard Lydekker (; 25 July 1849 – 16 April 1915) was an English natural history, naturalist, geologist and writer of numerous books on natural history. Biography Richard Lydekker was born at Tavistock Square in London. His father was Gerard Wolfe Lydekker, a barrister-at-law with Dutch ancestry. The family moved to Lydekker Park, Harpenden Lodge soon after Richard's birth. He was educated at Trinity College, Cambridge, where he took a first-class in the Natural Science tripos (1872). In 1874 he joined the Geological Survey of India and made studies of the vertebrate palaeontology of northern India (especially Kashmir). He remained in this post until the death of his father in 1881. His main work in India was on the Siwalik palaeofauna; it was published in ''Palaeontologia Indica''. He was responsible for the cataloguing of the fossil mammals, reptiles, and birds in the Natural History Museum, London, Natural History Museum (10 vols., 1891). He named a variety of taxa includin ...
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Caterpillars
Caterpillars ( ) are the larval stage of members of the order Lepidoptera (the insect order comprising butterflies and moths). As with most common names, the application of the word is arbitrary, since the larvae of sawflies (suborder Symphyta) are commonly called caterpillars as well. Both lepidopteran and symphytan larvae have eruciform body shapes. Caterpillars of most species eat plant material ( often leaves), but not all; some (about 1%) eat insects, and some are even cannibalistic. Some feed on other animal products. For example, clothes moths feed on wool, and horn moths feed on the hooves and horns of dead ungulates. Caterpillars are typically voracious feeders and many of them are among the most serious of agricultural pests. In fact, many moth species are best known in their caterpillar stages because of the damage they cause to fruits and other agricultural produce, whereas the moths are obscure and do no direct harm. Conversely, various species of caterpilla ...
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Cotton Bush
''Maireana aphylla'', also known as cotton bush or leafless bluebush, is a leafless (or almost leafless) shrub that is endemic to Australia. It is usually rounded in form and grows to around in height. The species occurs in all mainland states and territories apart from the Australian Capital Territory. Gallery Maireana aphylla foliage.jpg Maireana aphylla fruit.jpg Maireana aphylla fruit 3.jpg Maireana aphylla stems.jpg References * * PlantNET – New South Wales Flora Online ''Maireana aphylla'' External links * {{Taxonbar, from=Q3278457 Flora of New South Wales Flora of the Northern Territory Flora of Queensland Flora of South Australia Flora of Victoria (Australia) aphylla ''Aphylla'' is a widespread Neotropical genus of dragonflies of the Gomphidae family. They are commonly known as the greater forceptails because of their forceps Forceps (plural forceps or considered a plural noun without a singular, often a ... Caryophyllales of Australia ...
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