Pthirus | |
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Pthirus gorillae | |
Pthirus pubis | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Arthropoda |
Class: | Insecta |
Order: | Psocodea |
Suborder: | Troctomorpha |
Infraorder: | Nanopsocetae |
Parvorder: | Phthiraptera |
Superfamily: | Anoplura |
Family: | Pthiridae Ewing, 1929 |
Genus: | Pthirus Leach, 1815 [1] |
Type species | |
Pediculus pubis [2] | |
Species | |
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Synonyms | |
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Pthirus is a genus of lice. There are only two extant species, and they are the sole known members of the family Pthiridae. [4] Pthirus gorillae infests gorillas, [5] and Pthirus pubis afflicts humans, and is commonly known as the crab louse or pubic louse. [6] The two species diverged some 3.3 million years ago. [7]
Since 1958 the generic name Pthirus has been spelled with pth rather than phth, despite this being based on a misspelling of the Greek-derived phthirus. [3] [8]
Louse is the common name for any member of the clade Phthiraptera, which contains nearly 5,000 species of wingless parasitic insects. Phthiraptera has variously been recognized as an order, infraorder, or a parvorder, as a result of developments in phylogenetic research.
The genus Haematomyzus includes three species of lice that differ so markedly from all other lice that the genus is placed in its own family Haematomyzidae, itself monotypic within the superfamily Rhynchophthirina. These unusual lice are ectoparasites of elephants and warthogs. Their mouthparts are elongated to form a drill-like structure that allows them to penetrate the thick skin of their host.
The crab louse or pubic louse is an insect that is an obligate ectoparasite of humans, feeding exclusively on blood. The crab louse usually is found in the person's pubic hair. Although the louse cannot jump, it can also live in other areas of the body that are covered with coarse hair, such as the perianal area, the entire body, and the eyelashes.
Orioles are colourful Old World passerine birds in the genus Oriolus, the type genus of the corvoidean family Oriolidae. They are not closely related to the New World orioles, which are icterids that belong to the superfamily Passeroidea.
The head louse is an obligate ectoparasite of humans. Head lice are wingless insects that spend their entire lives on the human scalp and feed 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.
Gallinago is a genus of birds in the wader family Scolopacidae, containing 18 species.
Limulus is a genus of horseshoe crab, with one extant species, the Atlantic horseshoe crab. One fossil species is currently assigned to the genus though several other species have been named, which have since been assigned to other genera.
Grus is a genus of large birds in the crane family.
The body louse 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.
Perisphinctes is an extinct genus of ammonite cephalopod. They lived during the Middle to Late Jurassic epochs and serve as an index fossil for that time period. The species P. boweni was named after the English chemist and geologist E. J. Bowen (1898–1980).
Campsicnemus is a genus of flies in family Dolichopodidae. There are more than 290 described species, made up of 34 Palearctic, 22 Nearctic, seven Afrotropic, 170 Australasian and Oceanian, and seven Indomalayan species. Some species endemic to the Hawaiian islands are characterized by their lack of wings. After the introduction of invasive ants and other alien species such as wild boar (Sus scrofa) to the islands, some of these flightless species are believed extinct.
Arthur Francis Hemming, CMG, CBE was an English entomologist who specialised in Lepidoptera. He was mostly known, both professionally and socially, by his middle-name as Francis Hemming.
Pyrops is a genus of planthoppers that occur primarily in southeast Asia, containing about 70 species. They are fairly large insects, with much of the length due to an elongated, upcurving, snout-like projection of the head. The wings are generally brightly patterned in contrasting colors, and they are popular among collectors.
Acheta is a genus of crickets. It most notably contains the house cricket. According to Direction 46 issued by the ICZN in 1956, this generic name is masculine in gender. Apart from the cosmoplitan house cricket, species are recorded from the Palaearctic realm and North America.
Mus is a subgenus of the rodent genus Mus.
Pediculosis pubis is an infestation by the pubic louse, Pthirus pubis, a wingless insect which feeds on blood and lays its eggs (nits) on mainly pubic hair. Less commonly, hair near the anus, armpit, beard, eyebrows, moustache, and eyelashes may be involved. It is usually acquired during sex, but can be spread via bedding, clothing and towels, and is more common in crowded conditions where there is close contact between people.
Pthirus gorillae or gorilla louse is a species of parasitic sucking louse that afflicts gorillas. It is found in the African continent, specifically in Rwanda and Democratic Republic of the Congo. P. gorillae and P. pubis are the only known species that belong to the genus Pthirus, often incorrectly spelled as Phthirus. It is suggested that it is transmitted among its hosts by social grooming, shared bedding and sexual contact.
Papilio ajaxLinnaeus, 1758 is a scientific name given in 1758 by Linnaeus to what later appeared to be a combination of three species of butterflies. The name was placed on the Official Index of Rejected and Invalid Specific Names in Zoology in 1954 after an application to that matter was submitted by Steven Corbet in 1945. The name no longer has a status as a scientific name, except in cases of homonymy; according to the rules of the International Code of Zoological Nomenclature the name Papilio ajax can no longer be given to any species.
Lachnus is a genus of aphids and the name-bearing type genus of the subfamily Lachninae. It consists of about 20 species.
Colpocephalum is a genus of chewing louse. Christian Ludwig Nitzsch named the genus in 1818. The Plenary Powers of the International Commission on Zoological Nomenclature selected Colpocephalum zebraBurmeister, 1838 as its type species in the 1950s. There are approximately 135 species in this genus, and they are ectoparasites of birds in at least a dozen different orders.