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Hygrobiidae
''Hygrobia'' is a genus of aquatic beetles native to Europe, North Africa, China and Australia. It is the only genus in the family Hygrobiidae, also known as the Paelobiidae.Nilsson, A. N. (2006)Which name is valid – Hygrobiidae or Paelobiidae?''Latissimus'' 21 37–39. These are known commonly as squeak beetles or screech-beetles. There are six known living species, with a highly disjunct distribution, and one extinct species, ''Hygrobia cretzschmari''. Biology All species occur in lowland areas Dettner, K. (2005). Noteridae. ''Handbook of Zoology'', ''4'', 72–90. and are mainly found in stagnant water.Holmen, M. (1987). Family Hygrobiidae. ''The aquatic Adephaga (Coleoptera) of Fennoscandia and Denmark''. Brill, 136–142. They live in the mud, silt, and detritus of ponds. None of the species occur in sympatry, except for ''H. nigra'' and ''H. australasiae'' in south-eastern Australia.Hawlitschek, O., Hendrich, L., & Balke, M. (2012). Molecular phylogeny of the squeak b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hygrobia Australasiae
''Hygrobia'' is a genus of aquatic beetles native to Europe, North Africa, China and Australia. It is the only genus in the family Hygrobiidae, also known as the Paelobiidae.Nilsson, A. N. (2006)Which name is valid – Hygrobiidae or Paelobiidae?''Latissimus'' 21 37–39. These are known commonly as squeak beetles or screech-beetles. There are six known living species, with a highly disjunct distribution, and one extinct species, ''Hygrobia cretzschmari''. Biology All species occur in lowland areas Dettner, K. (2005). Noteridae. ''Handbook of Zoology'', ''4'', 72–90. and are mainly found in stagnant water.Holmen, M. (1987). Family Hygrobiidae. ''The aquatic Adephaga (Coleoptera) of Fennoscandia and Denmark''. Brill, 136–142. They live in the mud, silt, and detritus of ponds. None of the species occur in sympatry, except for ''H. nigra'' and ''H. australasiae'' in south-eastern Australia.Hawlitschek, O., Hendrich, L., & Balke, M. (2012). Molecular phylogeny of the squeak b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hygrobia Maculata
''Hygrobia'' is a genus of aquatic beetles native to Europe, North Africa, China and Australia. It is the only genus in the family Hygrobiidae, also known as the Paelobiidae.Nilsson, A. N. (2006)Which name is valid – Hygrobiidae or Paelobiidae?''Latissimus'' 21 37–39. These are known commonly as squeak beetles or screech-beetles. There are six known living species, with a highly disjunct distribution, and one extinct species, ''Hygrobia cretzschmari''. Biology All species occur in lowland areas Dettner, K. (2005). Noteridae. ''Handbook of Zoology'', ''4'', 72–90. and are mainly found in stagnant water.Holmen, M. (1987). Family Hygrobiidae. ''The aquatic Adephaga (Coleoptera) of Fennoscandia and Denmark''. Brill, 136–142. They live in the mud, silt, and detritus of ponds. None of the species occur in sympatry, except for ''H. nigra'' and ''H. australasiae'' in south-eastern Australia.Hawlitschek, O., Hendrich, L., & Balke, M. (2012). Molecular phylogeny of the squeak b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hygrobia Davidi
''Hygrobia'' is a genus of aquatic beetles native to Europe, North Africa, China and Australia. It is the only genus in the family Hygrobiidae, also known as the Paelobiidae.Nilsson, A. N. (2006)Which name is valid – Hygrobiidae or Paelobiidae?''Latissimus'' 21 37–39. These are known commonly as squeak beetles or screech-beetles. There are six known living species, with a highly disjunct distribution, and one extinct species, ''Hygrobia cretzschmari''. Biology All species occur in lowland areas Dettner, K. (2005). Noteridae. ''Handbook of Zoology'', ''4'', 72–90. and are mainly found in stagnant water.Holmen, M. (1987). Family Hygrobiidae. ''The aquatic Adephaga (Coleoptera) of Fennoscandia and Denmark''. Brill, 136–142. They live in the mud, silt, and detritus of ponds. None of the species occur in sympatry, except for ''H. nigra'' and ''H. australasiae'' in south-eastern Australia.Hawlitschek, O., Hendrich, L., & Balke, M. (2012). Molecular phylogeny of the squeak b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hygrobia Nigra
''Hygrobia'' is a genus of aquatic beetles native to Europe, North Africa, China and Australia. It is the only genus in the family Hygrobiidae, also known as the Paelobiidae.Nilsson, A. N. (2006)Which name is valid – Hygrobiidae or Paelobiidae?''Latissimus'' 21 37–39. These are known commonly as squeak beetles or screech-beetles. There are six known living species, with a highly disjunct distribution, and one extinct species, ''Hygrobia cretzschmari''. Biology All species occur in lowland areas Dettner, K. (2005). Noteridae. ''Handbook of Zoology'', ''4'', 72–90. and are mainly found in stagnant water.Holmen, M. (1987). Family Hygrobiidae. ''The aquatic Adephaga (Coleoptera) of Fennoscandia and Denmark''. Brill, 136–142. They live in the mud, silt, and detritus of ponds. None of the species occur in sympatry, except for ''H. nigra'' and ''H. australasiae'' in south-eastern Australia.Hawlitschek, O., Hendrich, L., & Balke, M. (2012). Molecular phylogeny of the squeak b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hygrobia Wattsi
''Hygrobia'' is a genus of aquatic beetles native to Europe, North Africa, China and Australia. It is the only genus in the family Hygrobiidae, also known as the Paelobiidae.Nilsson, A. N. (2006)Which name is valid – Hygrobiidae or Paelobiidae?''Latissimus'' 21 37–39. These are known commonly as squeak beetles or screech-beetles. There are six known living species, with a highly disjunct distribution, and one extinct species, ''Hygrobia cretzschmari''. Biology All species occur in lowland areas Dettner, K. (2005). Noteridae. ''Handbook of Zoology'', ''4'', 72–90. and are mainly found in stagnant water.Holmen, M. (1987). Family Hygrobiidae. ''The aquatic Adephaga (Coleoptera) of Fennoscandia and Denmark''. Brill, 136–142. They live in the mud, silt, and detritus of ponds. None of the species occur in sympatry, except for ''H. nigra'' and ''H. australasiae'' in south-eastern Australia.Hawlitschek, O., Hendrich, L., & Balke, M. (2012). Molecular phylogeny of the squeak b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Adephaga
The Adephaga (from Greek ἀδηφάγος, ''adephagos'', "gluttonous") are a suborder of beetles, and with more than 40,000 recorded species in 10 families, the second-largest of the four beetle suborders. Members of this suborder are collectively known as adephagans. The largest family is Carabidae (ground beetles) which comprises most of the suborder with over 40,000 species. Adephaga also includes a variety of aquatic beetles, such as predaceous diving beetles and whirligig beetles. Anatomy Adephagans have simple antennae with no pectination or clubs. The galeae of the maxillae usually consist of two segments. Adult adephagans have visible notopleural sutures. The first visible abdominal sternum is completely separated by the hind coxae, which is one of the most easily recognizable traits of adephagans. Five segments are on each foot. Wings The transverse fold of the hind wing is near the wing tip. The median nervure ends at this fold, where it is joined by a cro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hygrobia Hermanni
''Hygrobia hermanni'', commonly known as the screech beetle, is a species of beetle in the family Hygrobiidae. It is found in Southern and Western Europe and North Africa Fauna Europaea in stagnant and muddy waters. It able to make a strident grating noise, hence the name screech beetle. The sound is produced when the sharp edge of the 7th abdominal tergite is rubbed against a subapical median file on the elytral undersurface. References Adephaga Beetles described in 1775 Taxa named by Johan Christian Fabricius {{Adephaga-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amphizoidae
''Amphizoa'' is a genus of aquatic beetles in the suborder Adephaga, placed in its own monogeneric family, Amphizoidae.''Amphizoa'' LeConte 1853. Illinois Natural History Survey. There are five known species of ''Amphizoa'', three in western North America and two in the eastern .Nilsson, Anders N., and Bernhard J. van Vondel (2005), World Catalogue of Insects. Volume 7: Amphizoidae, Aspidytidae, Haliplidae, Noteridae and Paelobiidae (Coleoptera, Adephaga) They are sometimes referred to by the common name troutstream beetles. Description Troutstream beetles have a characteristic appearance. They ar ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Labrum (arthropod Mouthpart)
The labrum is a flap-like structure that lies immediately in front of the mouth in almost all extant Euarthropoda. The most conspicuous exceptions are the Pycnogonida, which probably are chelicerate-relatives. In entomology, the labrum amounts to the "upper lip" of an insect mouth, the corresponding "lower lip" being the labium. The evolutionary origin, embryogenesis and morphological development of the labrum have proved to be by far the most controversial and challenging topic in the study of arthropod head structures. Embryonic nature and origin of the labrum The labrum is innervated in crustaceans and insects from the tritocerebrum (the back of the brain). However, in development, its embryonic primordium often appears at the anterior of the head and migrates backwards towards its adult position. Furthermore, it often appears as a bilobed structure, with a set of muscles, nerves and gene expression in many ways similar to that of an appendage. This evidence has been use ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oligochaeta
Oligochaeta () is a subclass of animals in the phylum Annelida, which is made up of many types of aquatic and terrestrial worms, including all of the various earthworms. Specifically, oligochaetes comprise the terrestrial megadrile earthworms (some of which are semiaquatic or fully aquatic), and freshwater or semiterrestrial microdrile forms, including the tubificids, pot worms and ice worms ( Enchytraeidae), blackworms ( Lumbriculidae) and several interstitial marine worms. With around 10,000 known species, the Oligochaeta make up about half of the phylum Annelida. These worms usually have few setae (chaetae) or "bristles" on their outer body surfaces, and lack parapodia, unlike polychaeta. Diversity Oligochaetes are well-segmented worms and most have a spacious body cavity (coelom) used as a hydroskeleton. They range in length from less than up to in the 'giant' species such as the giant Gippsland earthworm (''Megascolides australis'') and the Mekong worm (''Amynth ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stridulation
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 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 onomatopoeic words for the sounds produced by stridulation include ''chirp'' and ''chirrup''. Arthropod stridulation Insects and other arthropods stridulate by rubbing together two parts of the body. These a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Compound Eyes
A compound eye is a visual organ found in arthropods such as insects and crustaceans. It may consist of thousands of ommatidia, which are tiny independent photoreception units that consist of a cornea, lens, and photoreceptor cells which distinguish brightness and color. The image perceived by this arthropod eye is a combination of inputs from the numerous ommatidia, which are oriented to point in slightly different directions. Compared with single-aperture eyes, compound eyes have poor image resolution; however, they possess a very large view angle and the ability to detect fast movement and, in some cases, the polarization of light. Because a compound eye is made up of a collection of ommatidia, each with its own lens, light will enter each ommatidium instead of using a single entrance point. The individual light receptors behind each lens are then turned on and off due to a series of changes in the light intensity during movement or when an object in moving, creating a flick ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
