Pthirus
Genus of lice
From Wikipedia, the free encyclopedia
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]
| Pthirus | |
|---|---|
| |
| Pthirus gorillae | |
 | |
| Pthirus pubis | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Clade: | Pancrustacea |
| Class: | Insecta |
| Order: | Psocodea |
| Suborder: | Troctomorpha |
| Infraorder: | Phthiraptera |
| Parvorder: | Anoplura |
| Family: | Pthiridae Ewing, 1929 |
| Genus: | Pthirus Leach, 1815[1] |
| Type species | |
| Pediculus pubis[2] | |
| Species | |
| |
| Synonyms | |
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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]
A three-gene phylogeny (largely reproduced in a later phylogenomic analysis, which included fewer taxa of this genus) is:[9][10]
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| 47.6 |
Labels below nodes are estimated divergence times (Mya).
