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Micronecta Scholtzi
''Micronecta scholtzi'', the lesser water boatman, is a species of pygmy water boatman in the family Micronectidae. It was first described by Franz Xaver Fieber in 1860. They are some 2 mm long and are common in freshwater ponds and lakes across Europe, preferring stagnant to moderately moving water. In Central Europe, the genus '' Micronecta'' is represented by five species, as follows: *''Micronecta'' (''Dichaetonecta'') ''pusilla'' (Géza Horváth, 1895) *''Micronecta'' (''Dichaetonecta'') ''scholtzi'' ( Fieber, 1860) *''Micronecta'' (''Micronecta'') ''griseola'' Géza Horváth, 1899 *''Micronecta'' (''Micronecta'') ''minutissima'' (Linnaeus, 1758) *''Micronecta'' (''Micronecta'') ''poweri'' (Douglas & Scott, 1869) ''M. scholtzi'' is easily differentiated from other species in this genus by the twisted left paramere of the male genitalia, (see traumatic insemination) the short pronotum and a distinctive dark pattern on the head. Little is known of its habits and hab ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Franz Xaver Fieber
Franz Xaver Fieber (Prague, 1 March 1807 – Chrudim, 22 February 1872 ) was a German botanist and entomologist. He was the son of Franz Anton Fieber and Maria Anna née Hantsehl. He studied economics, management science and modern languages at the Czech Technical University in Prague from 1824 to 1828. He began work in finance (civil service) before becoming a magistrate in Chrudim in Bohemia. Fieber was a Member of the Deutsche Akademie der Naturforscher Leopoldina The German National Academy of Sciences Leopoldina (german: Deutsche Akademie der Naturforscher Leopoldina – Nationale Akademie der Wissenschaften), short Leopoldina, is the national academy of Germany, and is located in Halle (Saale). Founded .... He was the author of "Synopsis der europäischen Orthopteren" (1854), ''Die europäischen Hemiptera'' (1860), and numerous other publications on insects. He worked notably on insect wings. As well as Hemiptera, he studied Orthoptera. References * Allen G. De ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Traumatic Insemination
Traumatic insemination, also known as hypodermic insemination, is the mating practice in some species of invertebrates in which the male pierces the female's abdomen with his aedeagus and injects his sperm through the wound into her abdominal cavity (hemocoel). The sperm diffuse through the female's hemolymph, reaching the ovaries and resulting in fertilization. The process is detrimental to the female's health. It creates an open wound which impairs the female until it heals, and is susceptible to infection. The injection of sperm and ejaculatory fluids into the hemocoel can also trigger an immune reaction in the female. Bed bugs, which reproduce solely by traumatic insemination, have evolved a pair of sperm-receptacles, known as the spermalege. It has been suggested that the spermalege reduces the direct damage to the female bed bug during traumatic insemination. However experiments found no conclusive evidence for that hypothesis; as of 2003, the preferred explanation for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Syntonarcha Iriastis
''Syntonarcha iriastis'' is a moth in the family Crambidae. It was described by Edward Meyrick in 1890. It is found in the western Pacific, including Hong Kong, New Caledonia and most of Australia, where it has been recorded from Western Australia, the Northern Territory, Queensland and New South Wales. Males of the species produce an ultrasonic sound by rubbing their genitalia against one of their sternites. It is hypothesized that this is used to attract mates over long distances. The wingspan The wingspan (or just span) of a bird or an airplane is the distance from one wingtip to the other wingtip. For example, the Boeing 777–200 has a wingspan of , and a wandering albatross (''Diomedea exulans'') caught in 1965 had a wingspan of ... is about 25 mm. The forewings are light brownish ochreous. The hindwings are whitish. References Moths described in 1890 Odontiinae {{Odontiinae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pyralid
The Pyraloidea (pyraloid moths or snout moths) are a moth superfamily containing about 16,000 described species worldwide, and probably at least as many more remain to be described. They are generally fairly small moths, and as such, they have been traditionally associated with the paraphyletic Microlepidoptera. This superfamily used to contain the Hyblaeidae, Thyrididae, Alucitidae (plus Tineodidae), Pterophoridae, and Pyralidae. The first four families are now each split off as a distinct superfamily. Nowadays, Pyralidae are usually split into the Pyralidae sensu stricto and the Crambidae, as both groups have been shown to be monophyletic and a sister group. Some genera (e.g. ''Micronix'' and ''Tanaobela'') still defy easy classification and have been variously assigned to the Crambidae or the Pyralidae. Among all Lepidoptera, pyraloids show the most diverse life history adaptations. The larvae of most species feed on living plants either internally or externally as leaf rol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ultrasonics
Ultrasound is sound waves with frequencies higher than the upper audible limit of human hearing. Ultrasound is not different from "normal" (audible) sound in its physical properties, except that humans cannot hear it. This limit varies from person to person and is approximately 20 kilohertz (20,000 hertz) in healthy young adults. Ultrasound devices operate with frequencies from 20 kHz up to several gigahertz. Ultrasound is used in many different fields. Ultrasonic devices are used to detect objects and measure distances. Ultrasound imaging or sonography is often used in medicine. In the nondestructive testing of products and structures, ultrasound is used to detect invisible flaws. Industrially, ultrasound is used for cleaning, mixing, and accelerating chemical processes. Animals such as bats and porpoises use ultrasound for locating prey and obstacles. History Acoustics, the science of sound, starts as far back as Pythagoras in the 6th century BC, who wrote on t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Guinness World Records
''Guinness World Records'', known from its inception in 1955 until 1999 as ''The Guinness Book of Records'' and in previous United States editions as ''The Guinness Book of World Records'', is a reference book published annually, listing world records both of human achievements and the extremes of the natural world. The brainchild of Sir Hugh Beaver, the book was co-founded by twin brothers Norris and Ross McWhirter in Fleet Street, London, in August 1955. The first edition topped the best-seller list in the United Kingdom by Christmas 1955. The following year the book was launched internationally, and as of the 2022 edition, it is now in its 67th year of publication, published in 100 countries and 23 languages, and maintains over 53,000 records in its database. The international franchise has extended beyond print to include television series and museums. The popularity of the franchise has resulted in ''Guinness World Records'' becoming the primary international authority ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Decibels
The decibel (symbol: dB) is a relative unit of measurement equal to one tenth of a bel (B). It expresses the ratio of two values of a Power, root-power, and field quantities, power or root-power quantity on a logarithmic scale. Two signals whose level (logarithmic quantity), levels differ by one decibel have a power ratio of 101/10 (approximately ) or root-power ratio of 10 (approximately ). The unit expresses a relative change or an absolute value. In the latter case, the numeric value expresses the ratio of a value to a fixed reference value; when used in this way, the unit symbol is often suffixed with letter codes that indicate the reference value. For example, for the reference value of 1 volt, a common suffix is "#Voltage, V" (e.g., "20 dBV"). Two principal types of scaling of the decibel are in common use. When expressing a power ratio, it is defined as ten times the Common logarithm, logarithm in base 10. That is, a change in ''power'' by a factor of 10 corresp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stridulating
Stridulation is the act of producing sound by rubbing together certain body parts. This behavior is mostly associated with insects, but other animals are known to do this as well, such as a number of species of fish, snakes and spiders. The mechanism is typically that of one structure with a well-defined lip, ridge, or nodules (the "scraper" or ''plectrum'') being moved across a finely-ridged surface (the "file" or ''stridulitrum''—sometimes called the ''pars stridens'') or vice versa, and vibrating as it does so, like the dragging of a phonograph needle across a LP album, vinyl record. Sometimes it is the structure bearing the file which resonates to produce the sound, but in other cases it is the structure bearing the scraper, with both variants possible in related groups. Common Onomatopoeia, onomatopoeic words for the sounds produced by stridulation include ''chirp'' and ''chirrup''. Arthropod stridulation Insects and other arthropods stridulate by rubbing together two par ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pronotum
The prothorax is the foremost of the three segments in the thorax of an insect, and bears the first pair of legs. Its principal sclerites (exoskeletal plates) are the pronotum (dorsal), the prosternum (ventral), and the propleuron (lateral) on each side. The prothorax never bears wings in extant insects (except in some cases of atavism), though some fossil groups possessed wing-like projections. All adult insects possess legs on the prothorax, though in a few groups (e.g., the butterfly family Nymphalidae) the forelegs are greatly reduced. In many groups of insects, the pronotum is reduced in size, but in a few it is hypertrophied, such as in all beetles (Coleoptera). In most treehoppers (family Membracidae, order Hemiptera), the pronotum is expanded into often fantastic shapes that enhance their camouflage or mimicry. Similarly, in the Tetrigidae, the pronotum is extended backward to cover the flight wings, supplanting the function of the tegmina. See also *Glossary of entomolo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paramere
Parameres ('side parts') are part of the external reproductive organs of male insects and the term was first used by Karl Wilhelm Verhoeff, Verhoeff in 1893 for the lateral genital lobes in Coleoptera. The primary phallic lobes which appear in the nymph or larval stages may become a pair of penes in the Ephemeroptera or a simple median penis in the Thysanura. In higher insect orders from Orthoptera to Hymenoptera, each of the primary lobes is divided into two secondary lobes or phallomeres, termed parameres and mesomeres (NB: this use of the term "mesomere" is not to be confused with the Somite, same term in Segmentation (biology), segmentation embryology.) In adult insects parameres may elongate and become genital claspers. These claspers may themselves occur in two segments, forming a Anatomical terms of location#Proximal and distal, proximal basimere and a Anatomical terms of location#Proximal and distal, distal telomere (insect morphology), telomere or harpago ('grappling hook' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Micronectidae
Micronectidae is a family of water boatmen often referred to as pygmy water boatmen. They were originally classified as a subfamily under Corixidae but were raised to family level by Nieser (2002). There are two subfamilies, Micronectinae with 6 genera Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial nomenclat ... and Synaptogobiinae with one genus. Subfamilies and genera * Micronectinae ** '' Austronecta'' Tinerella, 2013 ** '' Micronecta'' Kirkaldy, 1897 ** '' Monogobia'' Nieser & Chen, 2006 ** '' Papuanecta'' Tinerella, 2008 ** '' Synaptonecta'' Lundblad, 1933 ** '' Tenagobia'' Bergroth, 1899 * Synaptogobiinae ** '' Synaptogobia'' Nieser & Chen, 2006 Data sources: i = ITIS, c = Catalogue of Life, g = GBIF, b = Bugguide.net References Further reading * * * * * * * * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Micronecta Scholtzi - Bottom
''Micronecta'' is a genus of aquatic insects in the family Micronectidae (formerly in Corixidae). References ''Micronecta''at 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 Infras ... External links ''Micronecta''at the ''Microcosmos of Pond and Stream'' Micronectinae Nepomorpha genera Hemiptera of Europe Taxa named by George Willis Kirkaldy {{Nepomorpha-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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