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Pediculidae
''Pediculus'' is a genus of sucking lice, the sole genus in the family Pediculidae. ''Pediculus'' species are ectoparasites of primates. Species include: *''Pediculus clavicornis'' Nitzsch, 1864 *''Pediculus humanus'' Linnaeus, 1758 **''Pediculus humanus humanus'' Linnaeus, 1758 – the body louse **''Pediculus humanus capitis'' De Geer, 1767 – the head louse *''Pediculus mjobergi'' Ferris, 1916 *''Pediculus schaeffi'' Fahrenholz, 1910 Humans are the hosts of ''Pediculus humanus''. Chimpanzees and bonobos host ''Pediculus shaeffi''. Various New World monkeys in the families Cebidae and Atelidae The Atelidae are one of the five family (biology), families of New World monkeys now recognised. It was formerly included in the family Cebidae. Atelids are generally larger monkeys; the family includes the howler monkey, howler, spider monkey, ... host ''Pediculus mjobergi''. References Lice {{louse-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Head Louse
The head louse (''Pediculus humanus capitis'') is an obligate ectoparasite of humans. Head lice are wingless insects that spend their entire lives on the human scalp and feeding exclusively on human blood. Humans are the only known hosts of this specific parasite, while chimpanzees and bonobos host a closely related species, ''Pediculus schaeffi''. Other species of lice infest most orders of mammals and all orders of birds. Lice differ from other hematophagic ectoparasites such as fleas in spending their entire lifecycle on a host. Head lice cannot fly, and their short, stumpy legs render them incapable of jumping, or even walking efficiently on flat surfaces. The non-disease-carrying head louse differs from the related disease-carrying body louse (''Pediculus humanus humanus'') in preferring to attach eggs to scalp hair rather than to clothing. The two subspecies are morphologically almost identical, but do not normally interbreed. From genetic studies, they are thought to h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pediculus Humanus Capitis
The head louse (''Pediculus humanus capitis'') is an obligate ectoparasite of humans. Head lice are wingless insects that spend their entire lives on the human scalp and feeding exclusively on human blood. Humans are the only known hosts of this specific parasite, while chimpanzees and bonobos host a closely related species, ''Pediculus schaeffi''. Other species of lice infest most orders of mammals and all orders of birds. Lice differ from other hematophagic ectoparasites such as fleas in spending their entire lifecycle on a host. Head lice cannot fly, and their short, stumpy legs render them incapable of jumping, or even walking efficiently on flat surfaces. The non-disease-carrying head louse differs from the related disease-carrying body louse (''Pediculus humanus humanus'') in preferring to attach eggs to scalp hair rather than to clothing. The two subspecies are morphologically almost identical, but do not normally interbreed. From genetic studies, they are thought to hav ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sucking Lice
Sucking lice (Anoplura, formerly known as Siphunculata) have around 500 species and represent the smaller of the two traditional superfamilies of lice. As opposed to the paraphyletic chewing lice, which are now divided among three suborders, the sucking lice are monophyletic. The Anoplura are all blood-feeding ectoparasites of mammals. They only occur on about 20% of all placentalian mammal species, and are unknown from several orders of mammals ( Monotremata, Edentata, Pholidota, Chiroptera, Cetacea, Sirenia, and Proboscidea).Piotrowski, F. (1992): Anoplura (echte Läuse). de Gruiter; 61 pp. (page 8) They can cause localized skin irritations and are vectors of several blood-borne diseases. Children appear particularly susceptible to attracting lice, possibly due to their fine hair. At least three species or subspecies of Anoplura are parasites of humans; the human condition of being infested with sucking lice is called pediculosis. ''Pediculus humanus'' is divided into t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pediculus Schaeffi
''Pediculus'' is a genus of sucking lice, the sole genus in the family Pediculidae. ''Pediculus'' species are ectoparasites of primates. Species include: *''Pediculus clavicornis'' Nitzsch, 1864 *''Pediculus humanus'' Linnaeus, 1758 **''Pediculus humanus humanus'' Linnaeus, 1758 – the body louse **''Pediculus humanus capitis'' De Geer, 1767 – the head louse *''Pediculus mjobergi'' Ferris, 1916 *''Pediculus schaeffi'' Fahrenholz, 1910 Humans are the hosts of ''Pediculus humanus''. Chimpanzees and bonobos host ''Pediculus shaeffi''. Various New World monkeys in the families Cebidae and Atelidae The Atelidae are one of the five families of New World monkeys now recognised. It was formerly included in the family Cebidae. Atelids are generally larger monkeys; the family includes the howler, spider, woolly, and woolly spider monkeys (t ... host ''Pediculus mjobergi''. References Lice {{louse-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pediculus Mjobergi
''Pediculus'' is a genus of sucking lice, the sole genus in the family Pediculidae. ''Pediculus'' species are ectoparasites of primates. Species include: *''Pediculus clavicornis'' Nitzsch, 1864 *''Pediculus humanus'' Linnaeus, 1758 **''Pediculus humanus humanus'' Linnaeus, 1758 – the body louse **''Pediculus humanus capitis'' De Geer, 1767 – the head louse *''Pediculus mjobergi'' Ferris, 1916 *''Pediculus schaeffi'' Fahrenholz, 1910 Humans are the hosts of ''Pediculus humanus''. Chimpanzees and bonobos host ''Pediculus shaeffi''. Various New World monkeys in the families Cebidae and Atelidae The Atelidae are one of the five families of New World monkeys now recognised. It was formerly included in the family Cebidae. Atelids are generally larger monkeys; the family includes the howler, spider, woolly, and woolly spider monkeys (t ... host ''Pediculus mjobergi''. References Lice {{louse-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pediculus Humanus Humanus
The body louse (''Pediculus humanus humanus'', also known as ''Pediculus humanus corporis'') is a hematophagic ectoparasite louse that infests humans. It is one of three lice which infest humans, the other two being the head louse, and the crab louse or pubic louse. Despite the name, body lice do not directly live on the host. They lay their eggs on fibres of clothing and only come into contact with the host whenever they need to feed. Since body lice cannot jump or fly, they spread by direct contact with another person or more rarely by contact with clothing or bed sheets that are infested. Body lice are disease vectors and can transmit pathogens that cause human diseases such as epidemic typhus, trench fever, and relapsing fever. In developed countries, infestations are only a problem in areas of poverty where there is poor body hygiene, crowded living conditions, and a lack of access to clean clothing. Outbreaks can also occur in situations where large groups of people ar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pediculus Clavicornis
''Pediculus'' is a genus of sucking lice, the sole genus in the family Pediculidae. ''Pediculus'' species are ectoparasites of primates. Species include: *''Pediculus clavicornis'' Nitzsch, 1864 *''Pediculus humanus'' Linnaeus, 1758 **''Pediculus humanus humanus'' Linnaeus, 1758 – the body louse **''Pediculus humanus capitis'' De Geer, 1767 – the head louse *''Pediculus mjobergi'' Ferris, 1916 *''Pediculus schaeffi'' Fahrenholz, 1910 Humans are the hosts of ''Pediculus humanus''. Chimpanzees and bonobos host ''Pediculus shaeffi''. Various New World monkeys in the families Cebidae and Atelidae The Atelidae are one of the five families of New World monkeys now recognised. It was formerly included in the family Cebidae. Atelids are generally larger monkeys; the family includes the howler, spider, woolly, and woolly spider monkeys (t ... host ''Pediculus mjobergi''. References Lice {{louse-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pediculus Humanus
''Pediculus humanus'' is a species of louse that infects humans. It comprises two subspecies: *''Pediculus humanus humanus'' Linnaeus, 1758 – body louse *''Pediculus humanus capitis'' De Geer, 1767 – head louse The head louse (''Pediculus humanus capitis'') is an obligate ectoparasite of humans. Head lice are wingless insects that spend their entire lives on the human scalp and feeding exclusively on human blood. Humans are the only known hosts of th ... References External links * Lice Insects described in 1758 Parasitic arthropods of humans Taxa named by Carl Linnaeus {{louse-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus comes above species and below family (taxonomy), family. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus. :E.g. ''Panthera leo'' (lion) and ''Panthera onca'' (jaguar) are two species within the genus ''Panthera''. ''Panthera'' is a genus within the family Felidae. The composition of a genus is determined by taxonomy (biology), taxonomists. The standards for genus classification are not strictly codified, so different authorities often produce different classifications for genera. There are some general practices used, however, including the idea that a newly defined genus should fulfill these three criteria to be descriptively useful: # monophyly – all descendants ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ectoparasite
Parasitism is a close relationship between species, where one organism, the parasite, lives on or inside another organism, the host, causing it some harm, and is adapted structurally to this way of life. The entomologist E. O. Wilson has characterised parasites as "predators that eat prey in units of less than one". Parasites include single-celled protozoans such as the agents of malaria, sleeping sickness, and amoebic dysentery; animals such as hookworms, lice, mosquitoes, and vampire bats; fungi such as honey fungus and the agents of ringworm; and plants such as mistletoe, dodder, and the broomrapes. There are six major parasitic strategies of exploitation of animal hosts, namely parasitic castration, directly transmitted parasitism (by contact), trophicallytransmitted parasitism (by being eaten), vector-transmitted parasitism, parasitoidism, and micropredation. One major axis of classification concerns invasiveness: an endoparasite lives inside the host's body; ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Charles De Geer
Baron Charles de Geer (the family is usually known as De Geer with a capitalized "De" and is pronounced "de yer"); Finspång in Risinge 30 January 1720 – Stockholm 7 March 1778) was a Swedish industrialist and entomologist. Life De Geer, who came from a family with strong Dutch connections, grew up in Utrecht from the age of three. He returned to Sweden at the age of 19. He had inherited the entailed manor and important iron-works of Leufsta (Lövsta) in Uppland from his childless uncle and namesake and would substantially increased the wealth of the estate. Ever since he had received a present of some silk worms at the age of eight, he had an interest in entomology and became a respected amateur entomologist at an early age. His major work was the ''Mémoires pour servir à l'histoire des insectes'' (eight volumes, 1752-1778). He was elected a member of the Royal Swedish Academy of Sciences already in 1739, at the age of nineteen, and a corresponding member of the Fren ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Family (biology)
Family ( la, familia, plural ') is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy. It is classified between order and genus. A family may be divided into subfamilies, which are intermediate ranks between the ranks of family and genus. The official family names are Latin in origin; however, popular names are often used: for example, walnut trees and hickory trees belong to the family Juglandaceae, but that family is commonly referred to as the "walnut family". What belongs to a family—or if a described family should be recognized at all—are proposed and determined by practicing taxonomists. There are no hard rules for describing or recognizing a family, but in plants, they can be characterized on the basis of both vegetative and reproductive features of plant species. Taxonomists often take different positions about descriptions, and there may be no broad consensus across the scientific community for some time. The publishing of new data and opini ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
