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Lonchopteridae Wing Veins-male
The Lonchopteridae (spear-winged flies or pointed-wing flies) are a family of small (2–5 mm), slender, yellow to brownish-black Diptera, occurring all over the world. Their common name refers to their pointed wings, which have a distinct venation. Many are parthenogenic; males are very rare, however, at least in North American species, and have a somewhat different venation than do the females.Smith, K.G.V. (1969): '' Handbook for the Identification of British Insects'' 10(2ai: Diptera Lonchopteridae): 1–9.Borror, D.J.; Triplehorn, C.A. & Johnson, N.A. (1989): ''An Introduction to the Study of Insects'' (6th edition). Saunders College Publishing. Spear-winged flies are common in moist, shady, grassy areas, where the larvae are found within decaying vegetation. One species, ''Lonchoptera bifurcata'', is cosmopolitan in distribution, and may have been transported via shipments of vegetables. Description For terms see Morphology of Diptera. The Lonchopteridae are minute, s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lonchoptera Lutea
''Lonchoptera lutea'', the yellow spear-winged fly, is the type species of the genus ''Lonchoptera''. Adults vary a great deal in colour, from yellow to dark brown. The anteroventral bristle A bristle is a stiff hair or feather (natural or artificial), either on an animal, such as a pig, a plant, or on a tool such as a brush or broom. Synthetic types Synthetic materials such as nylon are also used to make bristles in items such as br ... of the middle tibia is missing from the distal half. Scutellum brown to yellow. first and second antennal segments yellow, the third being dark, with a subapical arista. Unlike most ''Lonchoptera'', ''Lonchoptera lutea'' shows a marked preference for unshaded habitats. It is widespread and often very common throughout most of Europe, extending into parts of Asia. References Lonchopteridae Muscomorph flies of Europe Diptera of Asia Insects described in 1809 Taxa named by Georg Wolfgang Franz Panzer {{Platypezoidea-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Platypezoidea
The Platypezoidea are a superfamily of true flies of the section Aschiza. Their closest living relatives are the Syrphoidea, which, for example, contain the hoverflies. Like these, the adults do not burst open their pupal cases with a ptilinum when hatching, thus the Aschiza do not have the inverted-U-shaped suture above the antennae. They are, however, muscomorphs, thus have a particular type of pupal case resembling a rounded barrel and called puparium. Families Five families are placed in the Platypezoidea, listed below in taxonomic sequence: * Phoridae - coffin and scuttle flies (includes Sciadoceridae) * Opetiidae - flat-footed flies * Ironomyiidae - ironic flies * Lonchopteridae - spear-winged flies, pointed-wing flies * Platypezidae Platypezidae is a family of true flies of the superfamily Platypezoidea. The more than 250 species are found worldwide primarily in woodland habitats. A common name is flat-footed flies, but this is also used for the closely r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fossil
A fossil (from Classical Latin , ) is any preserved remains, impression, or trace of any once-living thing from a past geological age. Examples include bones, shells, exoskeletons, stone imprints of animals or microbes, objects preserved in amber, hair, petrified wood and DNA remnants. The totality of fossils is known as the ''fossil record''. Paleontology is the study of fossils: their age, method of formation, and evolutionary significance. Specimens are usually considered to be fossils if they are over 10,000 years old. The oldest fossils are around 3.48 billion years old to 4.1 billion years old. Early edition, published online before print. The observation in the 19th century that certain fossils were associated with certain rock strata led to the recognition of a geological timescale and the relative ages of different fossils. The development of radiometric dating techniques in the early 20th century allowed scientists to quantitatively measure the ... [...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 lodge ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lonchoptera
''Lonchoptera'' is a genus of spear-winged flies ( Lonchopteridae). Their common name refers to their subacute (pointed) wings, which have a distinct and sexually dimorphic venation. Description Species in ''Lonchoptera'' are tiny to small, at , slender, and yellow to brownish-black bristly. The larvae are dorsally flattened, with two pairs of head bristles, and feed on rotting vegetable matter., including in one case brussels sprouts. This genus can be distinguished from other spear-winged flies by several traits: * foreleg tibiae have dorsal setae in the middle * foreleg tarsi thinner than foreleg tibiae * pointed wingtip without apical brown spot. Species Species include: *'' Lonchoptera africana'' Adams, 1905 *'' Lonchoptera alfhildae'' Andersson, 1971 *'' Lonchoptera anderssoni'' Joseph & Parui, 1976 *'' Lonchoptera annikaae'' Andersson, 1971 *'' Lonchoptera apicalis'' (Okada, 1935) *'' Lonchoptera barberi'' Klymko, 2008 *'' Lonchoptera bifurcata'' ( Fallén, 1810) *' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tree Of Life Web Project
The Tree of Life Web Project is an Internet project providing information about the diversity and phylogeny of life on Earth. This collaborative peer reviewed project began in 1995, and is written by biologists from around the world. The site has not been updated since 2011, however the pages are still accessible. The pages are linked hierarchically, in the form of the branching evolutionary tree of life, organized cladistically. Each page contains information about one particular group of organisms and is organized according to a branched tree-like form, thus showing hypothetical relationships between different groups of organisms. In 2009 the project ran into funding problems from the University of Arizona. Pages and Treehouses submitted took a considerably longer time to be approved as they were being reviewed by a small group of volunteers, and apparently, around 2011, all activities ended. History The idea of this project started in the late 1980s. David Maddison was wor ... [...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] |
Monotypic
In biology, a monotypic taxon is a taxonomic group (taxon) that contains only one immediately subordinate taxon. A monotypic species is one that does not include subspecies or smaller, infraspecific taxa. In the case of genera, the term "unispecific" or "monospecific" is sometimes preferred. In botanical nomenclature, a monotypic genus is a genus in the special case where a genus and a single species are simultaneously described. In contrast, an oligotypic taxon contains more than one but only a very few subordinate taxa. Examples Just as the term ''monotypic'' is used to describe a taxon including only one subdivision, the contained taxon can also be referred to as monotypic within the higher-level taxon, e.g. a genus monotypic within a family. Some examples of monotypic groups are: Plants * In the order Amborellales, there is only one family, Amborellaceae and there is only one genus, '' Amborella'', and in this genus there is only one species, namely ''Amborella trichopoda. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
