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Glycyphagus Hypudaei
''Glycyphagus'' is a genus of Astigmatina in the family Glycyphagidae. Description In adults of ''Glycyphagus'', the prodorsum lacks external vertical setae ''ve''. The internal vertical setae ''vi'' are long and barbed, and located posterior to the anterior margin of the propodosoma. The scapular setae ''si'' and ''se'' are arranged in a trapezoid or rectangle shape. In some species, there is a prodorsal sclerotization called a crista metopica. Some of the dorsal setae are long and heavily barbed. On the ventral side of the body, the subcapitulum has a distinct pattern of ventral ridges, and near the posterior margin of the body is the anus. The tibiae of the first two leg pairs have two ventral setae each. The tarsal claws are simple and small. Members of subgenus ''Lepidoglyphus'' have subtarsal scales on the legs. Females usually have a short external copulatory tube at the posterior end of the body. Males lack paranal suckers or tarsal suckers on the fourth leg pair. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Astigmatina
Astigmatina is a clade of mites in the order Sarcoptiformes. Astigmata has been ranked as an order or suborder in the past, but was lowered to the unranked clade Astigmatina of the clade Desmonomatides (synonym Desmonomata) in the order. Astigmatina is now made up of the two groups Acaridia and Psoroptidia, which have been suborders of the order Astigmata in the past. Astigmatina contains about 10 superfamilies and 76 families under Acaridia and Psoroptidia. Description Astigmatan mites are usually soft-bodied and white to brownish in colour (rarely tan and well-sclerotised), and range from 0.15 to 2.00 mm in length. They lack stigmatal openings (thus the name of the clade), peritremes or prodorsal sensilla. The gnathosoma (mouthparts) is usually exposed. They have a pair of chelicerae that are 2-segmented and usually chelate-dentate in shape (whip-like in Histiostomatidae). Opisthosomal glands are present and usually well-developed. Some features vary depending on the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glycyphagidae
Glycyphagidae is a family of mites in the order Astigmata. There are more than 25 genera and 100 described species in Glycyphagidae. The natural habitat of most species of this family is nests of rodents, insectivores, and opossums, although many now live among humans in stored food or housing. Genera These 27 genera belong to the family Glycyphagidae: * '' Apodemopus'' Fain, 1967 * '' Asiolabidophorus'' Lukoschus, Gerrits & Fain, 1977 * '' Austroglycyphagus'' * '' Dermacarus'' Haller, 1880 * '' Diamesoglyphus'' Zachvatkin, 1941 * '' Dipodomyopus'' Fain & Lukoschus, 1978 * '' Eupygopus'' Lukoschus, Rothuizen & Fain, 1977 * '' Glycyphagoides'' * ''Glycyphagus ''Glycyphagus'' is a genus of Astigmatina in the family Glycyphagidae. Description In adults of ''Glycyphagus'', the prodorsum lacks external vertical setae ''ve''. The internal vertical setae ''vi'' are long and barbed, and located poster ...'' Hering, 1838 * '' Gohieria'' Oudemans, 1939 * '' Hypodectes'' Filippi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Seta
In biology, setae (; seta ; ) are any of a number of different bristle- or hair-like structures on living organisms. Animal setae Protostomes Depending partly on their form and function, protostome setae may be called macrotrichia, chaetae, Scale (insect anatomy), scales, or Common name, informally, hairs. The setal membrane is not Cuticle, cuticularized, so movement is possible. Annelid setae are stiff bristles present on the body. They allow earthworms and their relatives to attach to the surface and prevent backsliding during peristaltic motion. These hairs make it difficult to pull a worm straight from the ground. Setae in oligochaetes (the group including earthworms) are largely composed of chitin. They are classified according to the limb to which they are attached; for instance, notosetae are attached to notopodia; neurosetae to neuropodia. The setae on polychaete worms are referred to as chaeta due to their differing morphology. Crustaceans have mechano- and chemos ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Subcapitulum
The subcapitulum (from Latin ''sub'', "under", and ''capitulum'', "small head"), also known as infracapitulum, hypognathum or hipognatum, refers to the ventral part of the gnathosoma (the part of the body comprising the mouth and feeding parts) or the fusion of the palpal (of the pedipalps, the second pair of appendages An appendage (or outgrowth) is an external body part or natural prolongation that protrudes from an organism's body such as an arm or a leg. Protrusions from single-celled bacteria and archaea are known as cell-surface appendages or surface app ...) coxae (the point of union of the appendages with the body) and the Labrum (arthropod mouthpart), labrum (the upper Arthropod mouthparts, mouthpart) complex present in some arthropods on which the mouth, pedipalps, mouthparts and Pharynx#Invertebrates, pharynx are generally located. It is delimited by the subcapitular apodeme (an ingrowth of the exoskeleton for muscle attachment), which separates it from the chelicera ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anus
In mammals, invertebrates and most fish, the anus (: anuses or ani; from Latin, 'ring' or 'circle') is the external body orifice at the ''exit'' end of the digestive tract (bowel), i.e. the opposite end from the mouth. Its function is to facilitate the defecation, expulsion of wastes that remain after digestion. Bowel contents that pass through the anus include the gaseous flatus and the semi-solid feces, which (depending on the type of animal) include: indigestible matter such as bones, hair pellet (ornithology), pellets, endozoochory, endozoochorous seeds and gastrolith, digestive rocks; Summary at residual food material after the digestible nutrients have been extracted, for example cellulose or lignin; ingested matter which would be toxic if it remained in the digestive tract; excretion, excreted metabolites like bilirubin-containing bile; and dead mucosal epithelia or excess gut bacteria and other endosymbionts. Passage of feces through the anus is typically controlled by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phoresis
Phoresis or phoresy is a temporary commensalistic relationship when an organism (a phoront or phoretic) attaches itself to a host organism solely for travel. It has been seen in ticks and mites since the 18th century, and in fossils 320 million years old. It is not restricted to arthropods or animals; plants with seeds that disperse by attaching themselves to animals are also considered to be phoretic. ''Phoresis'' is rooted in the Greek words ''phoras'' (bearing) and ''phor'' (thief). The term, originally defined in 1896 as a relationship in which the host acts as a vehicle for its passenger, clashed with other terminology being developed at the time, so constraints on the length of time, feeding, and ontogeny are now considered. Phoresis is used as a strategy for dispersal, seasonal migration, transport to new host/habitat, escaping ephemeral habitats, and reducing inbreeding depression. In addition to the benefits afforded to individuals and species, its presence ca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glycyphagus Destructor
''Glycyphagus'' is a genus of Astigmatina in the family Glycyphagidae. Description In adults of ''Glycyphagus'', the prodorsum lacks external vertical setae ''ve''. The internal vertical setae ''vi'' are long and barbed, and located posterior to the anterior margin of the propodosoma. The scapular setae ''si'' and ''se'' are arranged in a trapezoid or rectangle shape. In some species, there is a prodorsal sclerotization called a crista metopica. Some of the dorsal setae are long and heavily barbed. On the ventral side of the body, the subcapitulum has a distinct pattern of ventral ridges, and near the posterior margin of the body is the anus. The tibiae of the first two leg pairs have two ventral setae each. The tarsal claws are simple and small. Members of subgenus ''Lepidoglyphus'' have subtarsal scales on the legs. Females usually have a short external copulatory tube at the posterior end of the body. Males lack paranal suckers or tarsal suckers on the fourth leg pair. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
