This article is about the animal. For the infestation by crab or pubic lice, see Phthiriasis pubis.
Crab louse
Scientific classification
Domain:
Eukaryota
Kingdom:
Animalia
Phylum:
Arthropoda
Class:
Insecta
Order:
Psocodea
Family:
Pthiridae
Genus:
Pthirus
Species:
P. pubis
Binomial name
Pthirus pubis
(Linnaeus, 1758)
Synonyms
Pediculus pubis Linnaeus, 1758
Phthirus pubis Leach, 1817[1]
The crab louse or pubic louse (Pthirus pubis) is an insect that is an obligate ectoparasite of humans, feeding exclusively on blood.[2] 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 (in men), and the eyelashes (in children).[3][4]
Humans are the only known hosts of the crab louse, although a closely related species, Pthirus gorillae, infects gorillas. The human parasite is thought to have diverged from Pthirus gorillae approximately 3.3 million years ago.[5] It is more distantly related to the genus Pediculus, which contains the human head and body lice and lice that affect chimpanzees and bonobos.
^"Taxonomy of Human Lice". Phthiraptera.info. Archived from the original on April 14, 2020.
^Rapini, Ronald P.; Bolognia, Jean L.; Jorizzo, Joseph L. (2007). Dermatology: 2-Volume Set. St. Louis: Mosby. ISBN 978-1-4160-2999-1.
^CDC (Centers for Disease Control and Prevention) (2017-05-02). "Parasites: lice". www.cdc.gov. Retrieved 2017-12-04. This article incorporates text from this source, which is in the public domain.
^CDC (Centers for Disease Control and Prevention) (2017-05-02). "Parasites: pubic "crab" lice". www.cdc.gov. Retrieved 2017-12-04. This article incorporates text from this source, which is in the public domain.
^Weiss RA (10 February 2009). "Apes, lice and prehistory". J Biol. 8 (2): 20. doi:10.1186/jbiol114. PMC 2687769. PMID 19232074.
The crablouse or pubic louse (Pthirus pubis) is an insect that is an obligate ectoparasite of humans, feeding exclusively on blood. The crablouse usually...
clothing. A much more distantly related species of hair-clinging louse, the pubic or crablouse (Pthirus pubis), also infests humans. It is morphologically...
lice which infest humans, the other two being the head louse, and the crablouse or pubic louse. Body lice may lay eggs on the host hairs and clothing...
species of louse—the head louse and the body louse are subspecies of Pediculus humanus; and the pubic louse, Pthirus pubis. The body louse has the smallest...
infestations (pthiriasis) are usually spread through sexual contact. The crablouse can travel up to 10 inches on the body. Pubic lice infestation is found...
Humans can also become infected with two other lice – the body louse and the crablouse. To make the diagnosis, live lice must be found. Using a comb can...
Pediculosis pubis (also known as "crabs" and "pubic lice") is an infestation by the pubic louse, Pthirus pubis, a wingless insect which feeds on blood...
pubis (the crablouse) are the only known species that belong to the genus Pthirus, often incorrectly spelled as Phthirus (the Greek word for louse is phthir)...
humanus capitis, or the human head louse. Pthirus pubis (the human pubic louse) is the cause of the condition known as crabs. These 15 families are generally...
organisms that live primarily on the surface of the host. Examples: Scabies Crablouse (pubic lice) Pediculosis (head lice) Gamasoidosis (avian mites) Lernaeocera...
head louse. Pediculosis may be divided into the following types:: 446–8 Pediculosis capitis (Head lice infestation) Pediculosis corporis (Body louse infestation...
Isopoda. They get their name from often being found in old wood, and from louse, a parasitic insect, although woodlice are neither parasitic nor insects...
and Pthirus pubis afflicts humans, and is commonly known as the crablouse or pubic louse. The two species diverged some 3.3 million years ago. Since 1958...
of unusual odor. Pediculosis pubis, commonly called crabs, is a disease caused by the crablouse an ectoparasite. When the pubic hair is infested, the...
refers to ingrown eyelashes. Eyelashes may become infested with parasitic crablouse. An external hordeolum, or stye, is a purulent inflammation of infected...
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This article incorporates text from this source, which is in the public domain.
