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Platycheirus Angustatus
''Platycheirus angustatus'' is a species of hoverfly. It is found in many parts of the Palearctic, and in the Nearctic. DescriptionExternal images For terms, see: . Wing length: . Notopleurae and anepisternum shiny. Tergites 2 and 3 are much longer than wide; spots on tergite 3 at least 4/5 length of tergite; femur 1: some long black hairs suddenly bent at tip. The male genitalia are figured by Goeldlin et al (1990). The larva is described and figured by Rotheray (1988) See references for determination. Distribution : Fe ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trawscoed
Trawsgoed (Welsh language, Welsh for "Crosswood") is both a Community (Wales), community and an Estate (land), estate in Ceredigion, Wales. The estate is southeast of Aberystwyth, and has been in the possession of the Vaughan family since 1200.Trawsgoed Estate The Vaughans are descended from Collwyn ap Tangno, founder of the fifth Fifteen Tribes of Wales, noble tribe of North Wales, Lord of Eifionydd, Ardudwy, and part of Llŷn, who had his residence on the site of Harlech Castle. The land falls within the ancient parish of Llanafan y Trawsgoed, Llanafan,Vision of Britain in the upper division of the Hundred (administrative division), hundred of Ilar. In Wales, an ... [...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] |
Diptera Of North America
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] |
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] |
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] |
Rubus Fruticosus
''Rubus fruticosus'' L. is the ambiguous name of a European blackberry species in the genus ''Rubus'' in the rose family. The name has been interpreted in several ways: *The species represented by the type specimen of ''Rubus fruticosus'' L., which is also the type specimen of the genus ''Rubus''. This specimen is considered to match the species '' R. plicatus'', in ''Rubus'' subgenus ''Rubus'', section ''Rubus''. * Various species consistent with Linnaeus' original description of the species, which was based on a mixture of specimens now considered to match ''Rubus ulmifolius'' and ''R. plicatus'' *a species aggregate (group of similar species) ''Rubus fruticosus'' agg. (a ''nomen ambiguum'') that includes most (or rarely all) of a group called ''Rubus'' subgenus ''Rubus'' (or less often: ''Rubus'' section ''Rubus'' ensu latissimo): ** in a narrow sense, sometimes separated as the section ''Glandulosus'' (alternative name: subsection ''Hiemales''), with about 289 microspeci ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ranunculus
''Ranunculus'' is a large genus of about almost 1700 to more than 1800 species of flowering plants in the family Ranunculaceae. Members of the genus are known as buttercups, spearworts and water crowfoots. The genus is distributed in Europe, North America and South America. The familiar and widespread buttercup of gardens throughout Northern Europe (and introduced elsewhere) is the creeping buttercup ''Ranunculus repens'', which has extremely tough and tenacious roots. Two other species are also widespread, the bulbous buttercup ''Ranunculus bulbosus'' and the much taller meadow buttercup ''Ranunculus acris''. In ornamental gardens, all three are often regarded as weeds. Buttercups usually flower in the spring, but flowers may be found throughout the summer, especially where the plants are growing as opportunistic colonizers, as in the case of garden weeds. The water crowfoots (''Ranunculus'' subgenus ''Batrachium''), which grow in still or running water, are sometimes tr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polygonum Cuspidatum
''Reynoutria japonica'', synonyms ''Fallopia japonica'' and ''Polygonum cuspidatum'', is a species of herbaceous perennial plant in the knotweed and buckwheat family Polygonaceae. Common names include Japanese knotweed and Asian knotweed. It is native to East Asia in Japan, China and Korea. In North America and Europe, the species has successfully established itself in numerous habitats, and is classified as a pest and invasive species in several countries. Japanese knotweed has hollow stems with distinct raised nodes that give it the appearance of bamboo, though it is not related. While stems may reach a maximum height of each growing season, it is typical to see much smaller plants in places where they sprout through cracks in the pavement or are repeatedly cut down. The leaves are broad oval with a truncated base, long and broad, with an entire margin. The flowers are small, cream or white, produced in erect racemes long in late summer and early autumn. Related species in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leontodon
''Leontodon'' is a genus of plants in the tribe Cichorieae within the family Asteraceae, commonly known as hawkbits. Their English name derives from the mediaeval belief that hawks ate the plant to improve their eyesight. Although originally only native to Eurasia and North Africa, some species have since become established in other countries, including the United States and New Zealand. Recent research has shown that the genus ''Leontodon'' in the traditional delimitation is polyphyletic. Therefore, the former ''Leontodon'' subgenus ''Oporinia'' was raised to generic level. According to the nomenclatural rules the name '' Scorzoneroides'' has priority at generic level and therefore, the members of ''Leontodon'' subgenus ''Oporinia'' were transferred to the re-erected genus ''Scorzoneroides''. Ecology Seeds of ''Leontodon'' species are an important food source for certain bird species. Uses In Crete, the species ''Leontodon tuberosus'' which is called ('), (') or (') has i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aegopodium
''Aegopodium'' is a plant genus of the family Apiaceae native to Europe and western Asia. It is represented by about seven species, all are perennial herbs. Flowers are compounded, umbels appearing in spring-summer and are visited by many types of insect pollinators. Fruit consists of two-winged or ribbed nuts that separate on ripening. The most well-known member is the ''Aegopodium podagraria'', the ground elder also known as snow-on-the-mountain, Bishop's weed, goutweed, native to Europe and Asia. It is variegated green and white that sometimes reverts to solid green within a patch. Small, white, five-petal flowers are held about three feet high, above the leaves, in flat topped clusters. Underground are long white branching rhizomes that vaguely resemble quackgrass. Regarded as an ecological threat, goutweed is aggressive, invasive and forms dense patches reducing species diversity in the ground layer. On the other hand, because of this, it is often used as a low maintenance gr ... [...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] |
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] |
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