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Chrysotoxum Verralli
''Chrysotoxum verralli'' is a species of hoverfly belonging to the subfamily Syrphinae. Distribution This species is present in Europe, the eastern Palearctic realm, and the Near East. Habitat These flies live in grasslands, often close to trees. Description ''Chrysotoxum verralli'' can reach a length of about . These species is a wasp-mimic, with yellow and black bands and long antennae. These bands are substantially parallel to the front edge of tergites. The black front edge of the tergite 2 is almost straight. The third antennal segment is shorter than segments 1 and 2 together. The female’s eyes are separated from each other. This species is hard to distinguish and very similar to ''Chrysotoxum arcuatum'', ''Chrysotoxum cautum'', ''Chrysotoxum elegans'' and '' Chrysotoxum octomaculatum''. Etymology The name honours George Henry Verrall George Henry Verrall (7 February 1848 – 16 September 1911) was a British horse racing official, entomologist, botanist and Conservat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
James Edward Collin
James Edward Collin (16 March 1876, Kirtling – 16 September 1968) was an English entomologist who specialised in Diptera. He was the author of ''Empididae''. ''British Flies'', Volume 6. University Press, Cambridge (1961). This was the third volume in an uncompleted series begun by his uncle George Henry Verrall. Collin wrote extensively on Diptera of most families of Diptera (excepting those in Nematocera The Nematocera (the name means "thread-horns") are a suborder of elongated fly, flies with thin, segmented antenna (biology), antennae and mostly aquatic larvae. This group is paraphyletic and contains all flies but species from suborder Brachyce ...). The specimens collected by Collin and his uncle Verrall are in the Hope Entomological Collections at the University of Oxford. The OUM website provides a searchable database of the new species they described. He was a Fellow of the Royal Entomological Society and its president 1927–1928. References *Chvála, M. 197 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Species
In biology, a species is the basic unit of Taxonomy (biology), 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 reproduction, produce Fertility, fertile offspring, typically by sexual reproduction. Other ways of defining species include their karyotype, DNA sequence, morphology (biology), 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 binomial nomenclature, 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 specifi ... [...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 mammals, th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Syrphinae
The Syrphinae constitute one of the three subfamilies of the fly family Syrphidae. Most larvae of this subfamily feed on aphids. It is a monophyletic group with more than 1,600 species. Gallery File:Melanostoma sp. (scalare^) Female. - Flickr - gailhampshire.jpg, ''Melanostoma'' sp. File:Platycheirus albimanus (male) - Flickr - S. Rae (3).jpg, ''Platycheirus albimanus'' (male) File:Skinny Flower Fly - Flickr - treegrow.jpg, ''Ocyptamus fuscipennis'' File:Sphaerophoria sp. (female) - Spain - Flickr - S. Rae.jpg, ''Sphaerophoria'' sp. (female) File:Syrphus sp. (male) - Flickr - S. Rae.jpg, '' Syrphus'' sp. (male) File:Toxomerus.marginatus02.jpg, '' Toxomerus marginatus'' File:Syrphid.maggot3554.5.13.08cw.jpg, Larva of '' Syrphus'' sp. feeding on aphids File:Eupeodes americanus.jpg, Puparium of'' Eupeodes americanus ''Eupeodes americanus'', the American hoverfly, is found throughout North America and inhabits meadows, and fields with flowers and foliage. Adults feed on nectar ... [...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 Blac ... [...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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Near East
The ''Near East''; he, המזרח הקרוב; arc, ܕܢܚܐ ܩܪܒ; fa, خاور نزدیک, Xāvar-e nazdik; tr, Yakın Doğu is a geographical term which roughly encompasses a transcontinental region in Western Asia, that was once the historical Fertile Crescent, and later the Levant region. It also comprises Turkey (both Anatolia and East Thrace) and Egypt (mostly located in North Africa, with the Sinai Peninsula being in Asia). Despite having varying definitions within different academic circles, the term was originally applied to the maximum extent of the Ottoman Empire. According to the National Geographic Society, the terms ''Near East'' and ''Middle East'' denote the same territories and are "generally accepted as comprising the countries of the Arabian Peninsula, Cyprus, Egypt, Iraq, Iran, Israel, Jordan, Lebanon, Palestinian territories, Syria, and Turkey". In 1997, the Food and Agriculture Organization of the United Nations, Food and Agriculture Organization (FAO) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chrysotoxum Arcuatum
''Chrysotoxum arcuatum'', is a species of hoverfly. It is widespread throughout Britain and Ireland but much more common in the upland districts of the north and west where it is typically found at ground level near woodland and moorland edges. The larvae are thought to feed on root aphid Aphids are small sap-sucking insects and members of the superfamily Aphidoidea. Common names include greenfly and blackfly, although individuals within a species can vary widely in color. The group includes the fluffy white woolly aphids. A t ...s associated with ant colonies. References Diptera of Europe Syrphinae Flies described in 1758 Taxa named by Carl Linnaeus {{Syrphidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chrysotoxum Cautum
''Chrysotoxum cautum'' is a species of hoverfly. It is found in southern Britain and Europe East into the Palearctic but is normally encountered in small numbers. The larvae are thought to feed on root aphids. Adults are usually found on the edges of woodland or scrub or along hedgerows where they visit a wide range of flowers. IdentificationExternal images For terms see Wing length 10·25–13 mm. Orange stigma.Apical antennomere as long as antennomeres 1 and 2 together. Abdomen relatively flat. The genitalia are exceptionally large and reach over the hind margin of sternite 4. Keys and accounts *Coe R.L. (1953) Syrphidae *Van Veen, M. (2004) ''Hoverflies o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chrysotoxum Elegans
''Chrysotoxum elegans'' is a species of hoverfly. It is found in southern mainland Europe. The larvae are thought to feed on root aphid Aphids are small sap-sucking insects and members of the superfamily Aphidoidea. Common names include greenfly and blackfly, although individuals within a species can vary widely in color. The group includes the fluffy white woolly aphids. A t ...s. References Insects described in 1841 Muscomorph flies of Europe Syrphinae {{Syrphidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chrysotoxum Octomaculatum
''Chrysotoxum octomaculatum'', the broken-banded wasp-hoverfly, is a species of hoverfly within the genus Chrysotoxum and family Syrphidae. It has been placed onto the UK Biodiversity Action Plan list of priority species. Distribution and habitat It inhabits clearings within scrub woodland and deciduous forest ranging from Fennoscandia to Northern Africa. Found in Europe, Southern Russia, Armenia, Kazakhstan. Can also be found in mountain habitats in northeast, central and western Greece, including regions such as Peloponnese and Crete. Within the United Kingdom the species is found in heathland habitats. Outside of the United Kingdom it is known to live in both deciduous and coniferous woodlands. Reproduction Larvae have an associated with Black garden ants (''Lasius niger ) , official_languages = , languages_type = National languages [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
George Henry Verrall
George Henry Verrall (7 February 1848 – 16 September 1911) was a British horse racing official, entomologist, botanist and Conservative politician. Horse racing Verrall was born in Lewes, Sussex. Following education at Lewes Grammar School he became secretary to his elder brother, John Frederick Verrall. John Verrall was a horse-racing official, being clerk of the course at many of the country's biggest meetings. When John died in 1877, George succeeded him. He moved to Newmarket, Suffolk, the centre of the horse-breeding industry, in 1878. Entomology Verrall had a keen interest in natural history, particularly entomology. He joined the Entomological Society in 1866, was honorary secretary from 1872–1874 and president from 1899–1900. Verrall was one of the most influential British dipterists and worked extensively on several families with his nephew James Edward Collin, (1876–1968). Verrall purchased the collections of several European dipterists: Ferdinand Kowarz ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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