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Paragus Albifrons
''Paragus albifrons'', is a species of hoverfly. It is found from southern Europe across to eastern Asia. References Diptera of Europe Syrphinae Insects described in 1817 {{Syrphidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Johann Wilhelm Meigen
Johann Wilhelm Meigen (3 May 1764 – 11 July 1845) was a German entomologist famous for his pioneering work on Diptera. Life Early years Meigen was born in Solingen, the fifth of eight children of Johann Clemens Meigen and Sibylla Margaretha Bick. His parents, though not poor, were not wealthy either. They ran a small shop in Solingen. His paternal grandparents, however, owned an estate and hamlet with twenty houses. Adding to the rental income, Meigen's grandfather was a farmer and a guild mastercutler in Solingen. Two years after Meigen was born, his grandparents died and his parents moved to the family estate. This was already heavily indebted by the Seven Years' War, then bad crops and rash speculations forced the sale of the farm and the family moved back to Solingen. Meigen attended the town school but only for a short time. He had learned to read and write on his grandfather's estate and he read widely at home as well as taking an interest in natural history. A lodg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Animal
Animals are multicellular, eukaryotic organisms in the Kingdom (biology), biological kingdom Animalia. With few exceptions, animals Heterotroph, consume organic material, Cellular respiration#Aerobic respiration, breathe oxygen, are Motility, able to move, can Sexual reproduction, reproduce sexually, and go through an ontogenetic stage in which their body consists of a hollow sphere of Cell (biology), cells, the blastula, during Embryogenesis, embryonic development. Over 1.5 million Extant taxon, living animal species have been Species description, described—of which around 1 million are Insecta, insects—but it has been estimated there are over 7 million animal species in total. Animals range in length from to . They have Ecology, complex interactions with each other and their environments, forming intricate food webs. The scientific study of animals is known as zoology. Most living animal species are in Bilateria, a clade whose members have a Symmetry in biology#Bilate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arthropod
Arthropods (, (gen. ποδός)) are invertebrate animals with an exoskeleton, a segmented body, and paired jointed appendages. Arthropods form the phylum Arthropoda. They are distinguished by their jointed limbs and cuticle made of chitin, often mineralised with calcium carbonate. The arthropod body plan consists of segments, each with a pair of appendages. Arthropods are bilaterally symmetrical and their body possesses an external skeleton. In order to keep growing, they must go through stages of moulting, a process by which they shed their exoskeleton to reveal a new one. Some species have wings. They are an extremely diverse group, with up to 10 million species. The haemocoel, an arthropod's internal cavity, through which its haemolymph – analogue of blood – circulates, accommodates its interior organs; it has an open circulatory system. Like their exteriors, the internal organs of arthropods are generally built of repeated segments. Their nervous system is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Insect
Insects (from Latin ') are pancrustacean hexapod invertebrates of the class Insecta. They are the largest group within the arthropod phylum. Insects have a chitinous exoskeleton, a three-part body ( head, thorax and abdomen), three pairs of jointed legs, compound eyes and one pair of antennae. Their blood is not totally contained in vessels; some circulates in an open cavity known as the haemocoel. Insects are the most diverse group of animals; they include more than a million described species and represent more than half of all known living organisms. The total number of extant species is estimated at between six and ten million; In: potentially over 90% of the animal life forms on Earth are insects. Insects may be found in nearly all environments, although only a small number of species reside in the oceans, which are dominated by another arthropod group, crustaceans, which recent research has indicated insects are nested within. Nearly all insects hatch f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hoverfly
Hover flies, also called flower flies or syrphid flies, make up the insect family Syrphidae. As their common name suggests, they are often seen hovering or nectaring at flowers; the adults of many species feed mainly on nectar and pollen, while the larvae (maggots) eat a wide range of foods. In some species, the larvae are saprotrophs, eating decaying plant and animal matter in the soil or in ponds and streams. In other species, the larvae are insectivores and prey on aphids, thrips, and other plant-sucking insects. Insects such as aphids are considered a crop pest, and therefore the aphid-eating larvae of some hover flies serve as an economically (as well as ecologically) important predator and even potential agents for use in biological control, while the adults may be pollinators. About 6,000 species in 200 genera have been described. Hover flies are common throughout the world and can be found on all continents except Antarctica. Hover flies are harmless to most m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paragus
''Paragus'' is a genus of hoverflies. Species Subgenus: ''Afroparagus'' Vujić & Radenković, 2008 *'' P. borbonicus'' Macquart, 1842 Subgenus: ''Pandasyopthalmus'' Stuckenberg, 1954 *'' P. ascoensis'' Goeldlin, 1981 *'' P. atratus'' Meijere, 1906 *'' P. basilewskyi'' Doesburg, 1955 *'' P. chalybeatus'' Hull, 1964 *'' P. coadunatus'' Rondani, 1847 *'' P. dolichocerus'' Bezzi, 1915 *'' P. gracilis'' Stuckenberg, 1954 *'' P. haemorrhous'' Meigen, 1822 *'' P. jozanus'' Matsumura, 1916 *'' P. longiventris'' Loew, 1858 *'' P. marshalli'' Bezzi, 1915 *'' P. minutus'' Hull, 1964 *'' P. naso'' Stuckenberg, 1954 *'' P. nasutus'' Bezzi, 1915 *'' P. nigrocoeruleus'' Hull, 1949 *'' P. politus'' Wiedemann, 1830 *'' P. punctatus'' Hull, 1949 *'' P. tibialis'' ( Fallén, 1817) Subgenus: ''Paragus'' Latreille, 1804 *'' P. bicolor'' ( Fabricius, 1794) *'' P. bispinosus'' Vockeroth, 1986 *'' P. cooverti'' Vockeroth, 1986 *'' P. quadrifasciatus'' Meigen, 1822 *'' P. variabilis'' Vocke ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paragus (subgenus)
''Paragus'' is a genus of hoverflies. Species Subgenus: ''Afroparagus'' Vujić & Radenković, 2008 *'' P. borbonicus'' Macquart, 1842 Subgenus: ''Pandasyopthalmus'' Stuckenberg, 1954 *'' P. ascoensis'' Goeldlin, 1981 *'' P. atratus'' Meijere, 1906 *'' P. basilewskyi'' Doesburg, 1955 *'' P. chalybeatus'' Hull, 1964 *'' P. coadunatus'' Rondani, 1847 *'' P. dolichocerus'' Bezzi, 1915 *'' P. gracilis'' Stuckenberg, 1954 *'' P. haemorrhous'' Meigen, 1822 *'' P. jozanus'' Matsumura, 1916 *'' P. longiventris'' Loew, 1858 *'' P. marshalli'' Bezzi, 1915 *'' P. minutus'' Hull, 1964 *'' P. naso'' Stuckenberg, 1954 *'' P. nasutus'' Bezzi, 1915 *'' P. nigrocoeruleus'' Hull, 1949 *'' P. politus'' Wiedemann, 1830 *'' P. punctatus'' Hull, 1949 *'' P. tibialis'' ( Fallén, 1817) Subgenus: ''Paragus'' Latreille, 1804 *'' P. bicolor'' ( Fabricius, 1794) *'' P. bispinosus'' Vockeroth, 1986 *'' P. cooverti'' Vockeroth, 1986 *'' P. quadrifasciatus'' Meigen, 1822 *'' P. variabilis'' Vocke ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carl Fredrik Fallén
Carl Fredrik Fallén (born 22 September 1764 in Kristinehamn – 26 August 1830) was a Sweden, Swedish botanist and entomologist. Fallén taught at the Lund University. He wrote ''Diptera Sueciae'' (1814–27). Fallén described very many species of Diptera and Hymenoptera"ITIS" Taxon authorFallen/ref> He was elected a member of the Royal Swedish Academy of Sciences in 1810. Publications May be incomplete *''Monographia cimicum Sveciae''. Hafniae [= Copenhagen]. 124 p. (180*''Specimen entomologicum novam Diptera disponendi methodum exhibens''. Berlingianus, Lundae [= Lund]. 26 p. (1810) *Försök att bestämma de i Sverige funne Flugarter, som kunna föras till Slägtet ''Tachina''. ''K. Sven. Vetenskapsakad. Handl.'' (2) 31: 253–87. (181*''Specimen Novam Hymenoptera Disponendi Methodum Exhibens''. Dissertation. Berling, Lund. pp. 1–41. 1 pl.(1813*Beskrifning öfver några i Sverige funna Vattenflugor (Hydromyzides). ''K. Sven. Vetenskapsakad. Handl.'' (3) 1: 240–57. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hoverfly
Hover flies, also called flower flies or syrphid flies, make up the insect family Syrphidae. As their common name suggests, they are often seen hovering or nectaring at flowers; the adults of many species feed mainly on nectar and pollen, while the larvae (maggots) eat a wide range of foods. In some species, the larvae are saprotrophs, eating decaying plant and animal matter in the soil or in ponds and streams. In other species, the larvae are insectivores and prey on aphids, thrips, and other plant-sucking insects. Insects such as aphids are considered a crop pest, and therefore the aphid-eating larvae of some hover flies serve as an economically (as well as ecologically) important predator and even potential agents for use in biological control, while the adults may be pollinators. About 6,000 species in 200 genera have been described. Hover flies are common throughout the world and can be found on all continents except Antarctica. Hover flies are harmless to most m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Europe
Europe is a large peninsula conventionally considered a continent in its own right because of its great physical size and the weight of its history and traditions. Europe is also considered a subcontinent of Eurasia and it is located entirely in the Northern Hemisphere and mostly in the Eastern Hemisphere. Comprising the westernmost peninsulas of Eurasia, it shares the continental landmass of Afro-Eurasia with both Africa and Asia. It is bordered by the Arctic Ocean to the north, the Atlantic Ocean to the west, the Mediterranean Sea to the south and Asia to the east. Europe is commonly considered to be separated from Asia by the watershed of the Ural Mountains, the Ural River, the Caspian Sea, the Greater Caucasus, the Black Sea and the waterways of the Turkish Straits. "Europe" (pp. 68–69); "Asia" (pp. 90–91): "A commonly accepted division between Asia and Europe ... is formed by the Ural Mountains, Ural River, Caspian Sea, Caucasus Mountains, and the Black Sea wit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asia
Asia (, ) is one of the world's most notable geographical regions, which is either considered a continent in its own right or a subcontinent of Eurasia, which shares the continental landmass of Afro-Eurasia with Africa. Asia covers an area of , about 30% of Earth's total land area and 8.7% of Earth's total surface area. The continent, which has long been home to the majority of the human population, was the site of many of the first civilizations. Its 4.7 billion people constitute roughly 60% of the world's population. In general terms, Asia is bounded on the east by the Pacific Ocean, on the south by the Indian Ocean, and on the north by the Arctic Ocean. The border of Asia with Europe is a historical and cultural construct, as there is no clear physical and geographical separation between them. It is somewhat arbitrary and has moved since its first conception in classical antiquity. The division of Eurasia into two continents reflects East–West cultural, linguistic, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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