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Polyommatus Amandus
''Polyommatus amandus'', the Amanda's blue, is a butterfly of the family Lycaenidae. It is found in the Palearctic realm. Description With a wingspan of , Amanda's blue is noticeably larger than most of the "blue" butterflies, which is particularly apparent when they are flying. The upperside of the male's wings is a silvery blue or sky blue, often, but not always, with a broad dark border and a narrow black marginal line with an outermost white line. The upperside of the female's wings is in some populations dark blue edged with brown but in other populations is medium brown with a row of orange half-moon shaped lunules near the edges. The hind margin has red blotches. The underside of the male's wings are light grey with white-edged black blotches. The underside of the female's wings is similar but they are a rich creamy-brown colour with red blotches, especially on the margins of the hindwings and a series of black spots with white rims, often touching, forming a row parallel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Johann Gottlob Schneider
Johann Gottlob Theaenus Schneider (18 January 1750 – 12 January 1822) was a German Empire, German classicist and natural history, naturalist. Biography Schneider was born at Collm in Saxony. In 1774, on the recommendation of Christian Gottlob Heine, he became secretary to the famous Strasbourg scholar Richard François Brunck, and in 1811 became professor of ancient languages and eloquence at Breslau (chief librarian, 1816) where he died in 1822. Works Of his numerous works the most important was his ''Kritisches griechisch-deutsches Handwörterbuch'' (1797–1798), the first independent work of the kind since Henri Estienne, Stephanus's ''Thesaurus'', and the basis of Franz Passow, F. Passow's and all succeeding Greek lexicons (including, therefore, the contemporary standard ''A Greek-English Lexicon''). A special improvement was the introduction of words and expressions connected with natural history and science. In 1801 he corrected and expanded re-published Marcus Elieser ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lycaenidae
Lycaenidae is the second-largest family of butterflies (behind Nymphalidae, brush-footed butterflies), with over 6,000 species worldwide, whose members are also called gossamer-winged butterflies. They constitute about 30% of the known butterfly species. The family comprises seven subfamilies, including the blues (Polyommatinae), the coppers (Lycaeninae), the hairstreaks (Theclinae), and the harvesters (Miletinae). Description, food, and life cycle Adults are small, under 5 cm usually, and brightly coloured, sometimes with a metallic gloss. Larvae are often flattened rather than cylindrical, with glands that may produce secretions that attract and subdue ants. Their cuticles tend to be thickened. Some larvae are capable of producing vibrations and low sounds that are transmitted through the substrates they inhabit. They use these sounds to communicate with ants.Pierce, N. E.; Braby, M. F.; Heath, A.; Lohman, D. J.; Mathew, J.; Rand, D. B. & Travassos, M. A. (2002)"The eco ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Palearctic Realm
The Palearctic or Palaearctic is the largest of the eight biogeographic realms of the Earth. It stretches across all of Eurasia north of the foothills of the Himalayas, and North Africa. The realm consists of several bioregions: the Euro-Siberian region; the Mediterranean Basin; the Sahara and Arabian Deserts; and Western, Central and East Asia. The Palaearctic realm also has numerous rivers and lakes, forming several freshwater ecoregions. The term 'Palearctic' was first used in the 19th century, and is still in use as the basis for zoogeographic classification. History In an 1858 paper for the ''Proceedings of the Linnean Society'', British zoologist Philip Sclater first identified six terrestrial zoogeographic realms of the world: Palaearctic, Aethiopian/Afrotropic, Indian/Indomalayan, Australasian, Nearctic, and Neotropical. The six indicated general groupings of fauna, based on shared biogeography and large-scale geographic barriers to migration. Alfred Wallace ad ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polyommatus Amandus (1)
''Polyommatus amandus'', the Amanda's blue, is a butterfly of the family Lycaenidae. It is found in the Palearctic realm. Description With a wingspan of , Amanda's blue is noticeably larger than most of the "blue" butterflies, which is particularly apparent when they are flying. The upperside of the male's wings is a silvery blue or sky blue, often, but not always, with a broad dark border and a narrow black marginal line with an outermost white line. The upperside of the female's wings is in some populations dark blue edged with brown but in other populations is medium brown with a row of orange half-moon shaped lunules near the edges. The hind margin has red blotches. The underside of the male's wings are light grey with white-edged black blotches. The underside of the female's wings is similar but they are a rich creamy-brown colour with red blotches, especially on the margins of the hindwings and a series of black spots with white rims, often touching, forming a row parallel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polyommatinae
Polyommatinae, the blues, are a diverse subfamily of gossamer-winged butterflies (family Lycaenidae). This subfamily was long used to assign taxa of unclear relationships, and its contents and phylogeny are still in need of revision. The following four tribes are generally recognized within Polyommatinae, with Polyommatini comprising most of the genera and species: * Candalidini Eliot 1973 * Lycaenesthini Toxopeus 1929 * Niphandini Eliot 1973 * Polyommatini Polyommatini is a tribe of lycaenid butterflies in the subfamily of Polyommatinae. These were extensively studied by Russian novelist and lepidopterist Vladimir Nabokov. Genera Genera in this tribe include: * ''Actizera'' * '' Acytolepis'' * '' ... Swainson 1827 References External links * Tolweb Butterflies and Moths of North AmericaButterflies of America Taxa named by William John Swainson Butterfly subfamilies {{Polyommatinae-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 other 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 distance between the length from one end of an individual's arms (measured at the fingertips) to the other when raised parallel to the ground at shoulder height at a 90º angle. Former professional basketball player Manute Bol stood at and owned one of the largest wingspans at . Wingspan of aircraft The wingspan of an aircraft is always measured in a straight line, from wingtip to wingtip, independently of wing shape or sweep. Implications for aircraft design and anima ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vicia
''Vicia'' is a genus of over 240 species of flowering plants that are part of the legume family (Fabaceae), and which are commonly known as vetches. Member species are native to Europe, North America, South America, Asia and Africa. Some other genera of their subfamily Faboideae also have names containing "vetch", for example the vetchlings (''Lathyrus'') or the milk-vetches (''Astragalus''). The broad bean (''Vicia faba'') is sometimes separated in a monotypic genus ''Faba''; although not often used today, it is of historical importance in plant taxonomy as the namesake of the order Fabales, the Fabaceae and the Faboideae. The tribe Vicieae in which the vetches are placed is named after the genus' current name. Among the closest living relatives of vetches are the lentils (''Lens'') and the true peas (''Pisum''). Use by humans Bitter vetch ('' V. ervilia'') was one of the first domesticated crops. It was grown in the Near East about 9,500 years ago, starting perhaps ev ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lathyrus Pratensis
''Lathyrus pratensis'' or meadow vetchling, yellow pea, meadow pea and meadow pea-vine, is a perennial legume that grows to 1.2 m in height. The hermaphrodite flowers are pollinated by bees. As a perennial, this plant reproduces itself over many years, spreading out from the point it was introduced, especially in damp grassy areas. This plant has been propagated in the past as animal fodder. ''Lathyrus pratensis'' is also a host plant for ovipositioning of the wood white butterfly (''Leptidea sinapis''). Description Meadow vetchling is a perennial plant with a limp, unwinged stem that grows to and is erect and hairy. The leaves are alternate with short stalks and large stipules. The leaf blades are pinnate with a single pair of broad lanceolate leaflets with blunt tips, entire margins and a terminal unbranched tendril. The inflorescence An inflorescence is a group or cluster of flowers arranged on a Plant stem, stem that is composed of a main branch or a complicated ar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vicia Cracca
''Vicia cracca'' (tufted vetch, cow vetch, bird vetch, blue vetch, boreal vetch), is a species of flowering plant in the pea and bean family Fabaceae. It is native to Europe and Asia. It occurs on other continents as an introduced species, including North America, where it is a common weed. It often occurs in disturbed habitats, including old fields and roadside ditches. Description Cow vetch is in the family Fabaceae and similar to a pea in growth habit with climbing stems growing to 150 cm long, perennial,Parnell, J. and Curtis, T. (2012). ''Webb's An Irish Flora.'' Cork University Press. sending out noose-like branched tendrils from the tips of its leaves when it contacts another plant and securely fastens itself. This can cause "strangling" of smaller plants. An individual plant may reach a length (or height) of 2 m with a white taproot, which may extend up to 1 m. The leaves are 3–8 cm long, pinnate, with 8–12 pairs of leaflets, each leaflet 5–10&nb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Honeydew (secretion)
Honeydew is a sugar-rich sticky liquid, secreted by aphids and some scale insects as they feed on plant sap. When their mouthpart penetrates the phloem, the sugary, high-pressure liquid is forced out of the anus of the aphid. Honeydew is particularly common as a secretion in hemipteran insects and is often the basis for trophobiosis. Some caterpillars of Lycaenidae butterflies and some moths also produce honeydew. Honeydew producing insects, like cicadas, pierce phloem ducts to access the sugar rich sap. The sap continues to bleed after the insects have moved on, leaving a white sugar crust called manna. Ants may collect, or "milk", honeydew directly from aphids and other honeydew producers, which benefit from their presence due to their driving away predators such as lady beetles or parasitic wasps—see ''Crematogaster peringueyi''. Animals and plants in a mutually symbiotic arrangement with ants are called Myrmecophiles. In Madagascar, some gecko species in the genera ''Ph ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Predation
Predation is a biological interaction where one organism, the predator, kills and eats another organism, its prey. It is one of a family of common feeding behaviours that includes parasitism and micropredation (which usually do not kill the host) and parasitoidism (which always does, eventually). It is distinct from scavenging on dead prey, though many predators also scavenge; it overlaps with herbivory, as seed predators and destructive frugivores are predators. Predators may actively search for or pursue prey or wait for it, often concealed. When prey is detected, the predator assesses whether to attack it. This may involve ambush or pursuit predation, sometimes after stalking the prey. If the attack is successful, the predator kills the prey, removes any inedible parts like the shell or spines, and eats it. Predators are adapted and often highly specialized for hunting, with acute senses such as vision, hearing, or smell. Many predatory animals, both vertebrate and inv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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