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Charletonia Austisensis
''Charletonia austisensis'' is a species of mite belonging to the family Erythraeidae. ''C. austisensis'' belongs to the species group with two setae between coxae II and III. It differs from its cogenerate species by various length measurements. The species was first found in Austis, Sardinia, after which it is named.Haitlinger, R. Y. S. Z. A. R. D. "New records of mites from Corsica and Sardinia, with descriptions of five new species (Acari: Prostigmata: Erythraeidae, Trombidiidae, Eutrombidiidae)." Genus 18.3 (2007): 529-543. Description Larva The species' dorsum possesses 34 barbed setae, and an eye on each side. Its dorsal scutum is punctate, longer than it is wide, with three pairs of scutalae. It also shows 2 pairs of sensillae, both of which are nude. Its idiosoma counts with a pair of short setae ventrally. Between its coxae II and III it exhibits two setae and 14 setae posterior to coxae III, all barbed. Its gnathosoma shows nude hypostomalae and galealae. The palpfemu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mite
Mites are small arachnids (eight-legged arthropods) of two large orders, the Acariformes and the Parasitiformes, which were historically grouped together in the subclass Acari. However, most recent genetic analyses do not recover the two as each other's closest relative within Arachnida, rendering the group invalid as a clade. Most mites are tiny, less than in length, and have a simple, unsegmented body plan. The small size of most species makes them easily overlooked; some species live in water, many live in soil as decomposers, others live on plants, sometimes creating galls, while others are Predation, predators or Parasitism, parasites. This last type includes the commercially destructive ''Varroa'' parasite of honey bees, as well as scabies mites of humans. Most species are harmless to humans, but a few are associated with allergies or may transmit diseases. The scientific discipline devoted to the study of mites is called acarology. Evolution and taxonomy Mites are not ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Erythraeidae
Erythraeidae is a family of mites belonging to the Trombidiformes. Larval forms of these mites are parasitic on various other arthropods, for example harvestmen, but the adults are free-living predators. These oval mites are rather large, usually reddish coloured and densely hairy. The legs, especially the first and fourth pairs, are long and adapted for running. They have either one or two pairs of eyes and can be distinguished from related families microscopically by the presence of a single claw on the arthropod leg, tibia of the palp. The larvae bite a hole into the cuticula of the host and use a stylostome, which acts like a drinking straw, to drink body fluids dissolved tissues. The larvae of two described species of ''Leptus'' feed on bees: ''Leptus ariel'' lives on the European honey bee in Guatemala, and ''Leptus monteithi'' is a parasite of a ''Leioproctus'' species (Colletidae) in Tasmania.UMMZGenus ''Leptus'' Latreille, 1796(with drawing of ''L. ariel'') Harvestman ... [...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] |
Coccyx
The coccyx (: coccyges or coccyxes), commonly referred to as the tailbone, is the final segment of the vertebral column in all apes, and analogous structures in certain other mammals such as horse anatomy, horses. In tailless primates (e.g. humans and other great apes) since ''Nacholapithecus'' (a Miocene hominoid),Nakatsukasa 2004, ''Acquisition of bipedalism'' (SeFig. 5entitled ''First coccygeal/caudal vertebra in short-tailed or tailless primates.''.) the coccyx is the remnant of a Human vestigiality#Coccyx, vestigial tail. In animals with bony tails, it is known as Rump (animal), ''tailhead'' or ''dock'', in bird anatomy as ''tailfan''. It comprises three to five separate or fused coccygeal vertebrae below the sacrum, attached to the sacrum by a fibrocartilaginous joint, the sacrococcygeal symphysis, which permits limited movement between the sacrum and the coccyx. Structure The coccyx is formed of three, four or five rudimentary vertebrae. It articulates superiorly with ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Austis
Austis (, ) is a ''comune'' (municipality) in the Province of Nuoro in the Italian region Sardinia, located about north of Cagliari and about southwest of Nuoro. Austis borders the following municipalities: Neoneli, Nughedu Santa Vittoria, Olzai, Ortueri, Sorgono, Teti Teti, less commonly known as Othoes, sometimes also Tata, Atat, or Athath in outdated sources (died 2333 BC), was the first pharaoh, king of the Sixth Dynasty of Egypt. He was buried at Saqqara. The exact length of his reign has been destroye ..., Tiana. References External links Official website Cities and towns in Sardinia {{Sardinia-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sardinia
Sardinia ( ; ; ) is the Mediterranean islands#By area, second-largest island in the Mediterranean Sea, after Sicily, and one of the Regions of Italy, twenty regions of Italy. It is located west of the Italian Peninsula, north of Tunisia and 16.45 km south of the French island of Corsica. It has over 1.5 million inhabitants as of 2025. It is one of the five Italian regions with some degree of Autonomous administrative division, domestic autonomy being granted by a Regions of Italy#Autonomous regions with special statute, special statute. Its official name, Autonomous Region of Sardinia, is bilingual in Italian language, Italian and Sardinian language, Sardinian: / . It is divided into four provinces of Italy, provinces and a Metropolitan cities of Italy, metropolitan city. Its capital (and largest city) is Cagliari. Sardinia's indigenous language and Algherese dialect, Algherese Catalan language, Catalan are referred to by both the regional and national law as two of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scute
A scute () or scutum (Latin: ''scutum''; plural: ''scuta'' "Scutum (shield), shield") is a bony external plate or scale overlaid with horn, as on the shell of a turtle, the skin of crocodilians, and the feet of Bird anatomy#Scales, birds. The term is also used to describe the anterior portion of the mesothorax in insects as well as some arachnids (e.g., the family Ixodidae, the scale ticks). Properties Scutes are similar to scale (zoology), scales and serve the same function. Unlike the scales of lizards and snakes, which are formed from the Epidermis (skin), epidermis, scutes are formed in the lower vascular layer of the skin and the epidermal element is only the top surface . Forming in the living dermis, the scutes produce a Horn (anatomy), horny outer layer that is superficially similar to that of scales. Scutes will usually not overlap as snake scales (but see the pangolin). The outer keratin layer is shed piecemeal, and not in one continuous layer of skin as seen in snakes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sensillum
A sensillum (plural ''sensilla'') is an arthropod sensory organ protruding from the cuticle of exoskeleton, or sometimes lying within or beneath it. Sensilla appear as small hairs or pegs over an individual's body. Inside each sensillum there are two to four sensory neurons. These neurons, or receptors, gather information about environment the arthropod is in: * Chemoreceptors (i.e. trichoid, basionic, coeloconic, placodea) * Mechanoreceptors (e.g.: bristle sensilla, campaniform sensilla, hair plates, chordotonal neurons) * Thermoreceptors * Hygroreceptors Most sensilla are specially shaped according to the type of information they are gathering. In spiders, slit sensilla are used to detect substrate vibrations, while trichobothria are used to detect air-borne vibrations. Chemoreceptors Chemo-reception is one of the most dominant senses in the insect kingdom. Many arthropods use chemical signals to locate food, shelter and mates. Other invertebrates have similar sensory ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gnathosoma
The gnathosoma (from Greek , ' = "jaw" and , ' = "body") is the part of the body of the Acari (mites and ticks) comprising the mouth and feeding parts. These are the hypostome, the chelicerae and the pedipalps. It is also called the capitulum (however, this word also has other meanings). It is separated from the main body of the animal (the idiosoma) by a flexible section of the cuticle A cuticle (), or cuticula, is any of a variety of tough but flexible, non-mineral outer coverings of an organism, or parts of an organism, that provide protection. Various types of "cuticle" are non- homologous, differing in their origin, structu ... called the circumcapitular furrow or circumcapitular suture. See also * Subcapitulum References Arachnid anatomy Acari {{Acari-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Insect Mouthparts
Insects have arthropod mouthparts, mouthparts that may vary greatly across insect species, as they are adapted to particular modes of feeding. The earliest insects had chewing mouthparts. Most specialisation of mouthparts are for piercing and sucking, and this mode of feeding has evolved a number of times independently. For example, mosquitoes (which are true flies) and aphids (which are Hemiptera, true bugs) both pierce and suck, though female mosquitoes feed on animal blood whereas aphids feed on plant fluids. Evolution Like most external features of arthropods, the mouthparts of Hexapoda are highly derived. Insect mouthparts show a multitude of different functional mechanisms across the wide diversity of insect species. It is common for significant Homology (biology), homology to be conserved, with matching structures forming from matching Primordium, primordia, and having the same evolutionary origin. However, even if structures are almost physically and functionally identica ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Femur
The femur (; : femurs or femora ), or thigh bone is the only long bone, bone in the thigh — the region of the lower limb between the hip and the knee. In many quadrupeds, four-legged animals the femur is the upper bone of the hindleg. The Femoral head, top of the femur fits into a socket in the pelvis called the hip joint, and the bottom of the femur connects to the shinbone (tibia) and kneecap (patella) to form the knee. In humans the femur is the largest and thickest bone in the body. Structure The femur is the only bone in the upper Human leg, leg. The two femurs converge Anatomical terms of location, medially toward the knees, where they articulate with the Anatomical terms of location, proximal ends of the tibiae. The angle at which the femora converge is an important factor in determining the femoral-tibial angle. In females, thicker pelvic bones cause the femora to converge more than in males. In the condition genu valgum, ''genu valgum'' (knock knee), the femurs conve ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trombidiformes
Trombidiformes is a large, diverse order of mites. Taxonomy In 1998, Trombidiformes was divided into the Sphaerolichida and the Prostigmata. The group has few synapomorphies by which it can be defined, unlike the other major group of acariform mites, Sarcoptiformes. Its members include medically important mites (such as ''Demodex'', the chiggers, and scrub-itch mites) and many agriculturally important species, including the spider mites (Tetranychidae). The superfamily Eriophyoidea, traditionally considered members of the Trombidiformes, have been found to be basal mites in genomic analyses, sister to the clade containing Sarcoptiformes and Trombidiformes. The 2004 classification retained the two suborders, comprising around 125 families and more than 22,000 described species. In the 2011 revised classification, the order now contains 151 families, 2235 genera and 25,821 species, and there were another 10 species with 24 species that present only as fossils. These 151 famili ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
