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Didea Alneti
''Didea alneti'' is a Holarctic species of hoverfly. Description For terms see Morphology of Diptera The wing length is 9 ·75-11·5 mm. The face mostly yellow. Halteres with at least knob black or dark brown. Male vertex not long, less narrow than in ''Didea fasciata''. Tergite 5 black, rarely with spots. Male tergite 4 with front edge of wedge-shaped bars clearly separated from the front margin of the tergite or just touching front of tergite on median line. The male genitalia and the larva are figured by Dusek and Laska (1967) . Distribution A Palearctic species with a wide distribution in Europe and East across Russia to the Pacific coast, Mongolia, Japan and Korea. in North America from Alaska south to Colorado. Biology Habitat forest; conifer forest and taiga, ''Quercus'' woodland. Arboreal, descending to visit flowers of white umbellifers, yellow composites, ''Cirsium'', ''Plantago'', ''Potentilla'', ''Rosa'', ''Rubus idaeus'', ''Salix'', ''Sambucus ebulus'', ... [...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 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. (181*181 ... [...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 mammals, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
British Entomological And Natural History Society
The British Entomological and Natural History Society or BENHS is a British entomological society. It is based at Dinton Pastures Country Park in Reading. History BENHS was founded in 1872 as the South London Entomological and Natural History Society. Publications BENHS publishes a quarterly journal, the ''British Journal of Entomology and Natural History'' (), formally Proceedings and Transactions of the British Entomological and Natural History Society, and Proceedings and Transactions of the South London Entomological and Natural History Society. BENHS has published a number of books. Among the most well-known are two illustrated identification guides to British flies: * Stubbs, Alan E. and Steven J. Falk (1983) ''British Hoverflies, an illustrated identification guide'' * Stubbs, Alan E. and Martin Drake (2001) '' British Soldierflies and their allies'' Another title published by BENHS was ''New British Beetles - species not in Joy's practical handbook'' by Peter J. Hodge ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Morphology Of Diptera
Dipteran morphology differs in some significant ways from the broader morphology of insects. The Diptera is a very large and diverse order of mostly small to medium-sized insects. They have prominent compound eyes on a mobile head, and (at most) one pair of functional, membraneous wings, which are attached to a complex mesothorax. The second pair of wings, on the metathorax, are reduced to halteres. The order's fundamental peculiarity is its remarkable specialization in terms of wing shape and the morpho-anatomical adaptation of the thorax – features which lend particular agility to its flying forms. The filiform, stylate or aristate antennae correlate with the Nematocera, Brachycera and Cyclorrhapha taxa respectively. It displays substantial morphological uniformity in lower taxa, especially at the level of genus or species. The configuration of integumental bristles is of fundamental importance in their taxonomy, as is wing venation. It displays a complete metamorphosis (egg, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Didea Fasciata
''Didea fasciata'' is a Holarctic species of hoverfly. DescriptionExternal imagesFor terms see Morphology of Diptera Wing length 8·25– 11 mm. Halteres with yellow knob. Face yellow, at most the tip of the central knob dark. The male genitalia are figured by Vockeroth (1969). The Larva is described and figured by Heiss (1938) . Distribution Palaearctic and Nearctic. Fennoscandia South to Spain; Italy and Greece. Ireland eastwards through Russia and the Russian Far East to the Pacific coast. North America from British Columbia South to New Mexico and East to New York. Oriental region to North India and Formosa Biology Habitat: Deciduous and coniferous forest, tracksides, clearings. Flowers visited include white umbellifers, ''Arbutus unedo'', ''Chaerophyllum'', ''Crataegus'', ''Galium'', ''Hedera'', ''Hypochoeris'', ''Polygonum cuspidatum'', ''Rubus fruticosus'', ''Rubus idaeus'', ''Sambucus'', ''Urtica dioica'', ''Viburnum opulus''.de Buck, N. (1990) Bloembezoek en be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Palearctic
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 a ... [...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 Continent#Subcontinents, 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 Boundaries between the continents of Earth#Asia and Europe, separated from Asia by the drainage divide, watershed of the Ural Mountains, the Ural (river), 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 E ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fauna Europaea
Fauna Europaea is a database of the scientific names and distribution of all living multicellular European land and fresh-water animals. It serves as a standard taxonomic source for animal taxonomy within the Pan-European Species directories Infrastructure (PESI). , Fauna Europaea reported that their database contained 235,708 taxon names and 173,654 species names. Its construction was initially funded by the European Council (2000–2004). The project was co-ordinated by the University of Amsterdam The University of Amsterdam (abbreviated as UvA, nl, Universiteit van Amsterdam) is a public research university located in Amsterdam, Netherlands. The UvA is one of two large, publicly funded research universities in the city, the other being ... which launched the first version in 2004, after which the database was transferred to the Natural History Museum Berlin in 2015. References External links Fauna Europaea [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 typical life cycle involves flightless females giving live birth to female nymphs—who may also be already pregnant, an adaptation scientists call telescoping generations—without the involvement of males. Maturing rapidly, females breed profusely so that the number of these insects multiplies quickly. Winged females may develop later in the season, allowing the insects to colonize new plants. In temperate regions, a phase of sexual reproduction occurs in the autumn, with the insects often overwintering as eggs. The life cycle of some species involves an alternation between two species of host plants, for example between an annual crop and a woody plant. Some species feed on only one type of plant, while others are generalists, coloni ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diptera Of Europe
Flies are insects of the order Diptera, the name being derived from the Greek δι- ''di-'' "two", and πτερόν ''pteron'' "wing". Insects of this order use only a single pair of wings to fly, the hindwings having evolved into advanced mechanosensory organs known as halteres, which act as high-speed sensors of rotational movement and allow dipterans to perform advanced aerobatics. Diptera is a large order containing an estimated 1,000,000 species including horse-flies, crane flies, hoverflies and others, although only about 125,000 species have been described. Flies have a mobile head, with a pair of large compound eyes, and mouthparts designed for piercing and sucking (mosquitoes, black flies and robber flies), or for lapping and sucking in the other groups. Their wing arrangement gives them great maneuverability in flight, and claws and pads on their feet enable them to cling to smooth surfaces. Flies undergo complete metamorphosis; the eggs are often laid on the la ... [...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 ''Syrphus'' is a genus of hoverflies. It can be distinguished from other genera of the tribe Syrphini because it is the only genus that has long hairs on the upper surface of the lower lobe of the calypter (as well as hairs on the rear margin o ... ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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