| Calchas | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Subphylum: | Chelicerata |
| Class: | Arachnida |
| Order: | Scorpiones |
| Family: | Iuridae |
| Genus: | Calchas |
Calchas is a genus of scorpions in the family Iuridae. At least four species in Calchas are described. [1]
Scorpions are predatory arachnids of the order Scorpiones. They have eight legs, and are easily recognized by a pair of grasping pincers and a narrow, segmented tail, often carried in a characteristic forward curve over the back and always ending with a stinger. The evolutionary history of scorpions goes back 435 million years. They mainly live in deserts but have adapted to a wide range of environmental conditions, and can be found on all continents except Antarctica. There are over 2,500 described species, with 22 extant (living) families recognized to date. Their taxonomy is being revised to account for 21st-century genomic studies.
The Buthidae are the largest family of scorpions, containing about 80 genera and over 800 species as of mid-2008. Its members are known as, for example, fat-tailed scorpions and bark scorpions. A few very large genera are known, but a high number of species-poor or monotypic ones also exist. New taxa are being described at a rate of several to several dozen new species per year. They occur in the warmer parts of every major landmass on Earth, except on New Zealand. Together with four other families the Buthidae make up the superfamily Buthoidea. The family was established by Carl Ludwig Koch in 1837.
Euscorpius is a genus of scorpions, commonly called small wood-scorpions. It presently contains 17 species and is the type genus of the family Euscorpiidae - long included in the Chactidae - and the subfamily Euscorpiinae.
The taxonomy of scorpions deals with the classification of this predatory arthropod into 13 extant families and about 1,400 described species and subspecies. In addition, 111 described taxa of extinct scorpions are known.
Hottentotta is a genus of scorpions of the family Buthidae. It is distributed widely across Africa, except for most of the Sahara desert. Species in the genus also occur in the Middle East, the Arabian Peninsula, southeastern Turkey, Iraq, Iran, Afghanistan, Pakistan, India, Nepal, Cape Verde Islands, and Sri Lanka (introduced).
Leiurus is a genus of scorpion of the family Buthidae. The most common species, L. quinquestriatus, is also known under the common name Deathstalker. It is distributed widely across North Africa and the Middle East, including the western and southern Arabian Peninsula and southeastern Turkey. At least one species occurs in West Africa.
The Vaejovidae are a family of scorpions, comprising 17 genera, all except for Paruroctonus boreus(the northernmost scorpions in the world, present in Canada) found in Mexico and the Southern/Southwestern United States.
Compsobuthus is a genus of buthid scorpions.
Uintascorpio is an extinct genus of scorpion in the family Buthidae and containing the single species Uintascorpio halandrasorum. The species is known only from the Middle Eocene Parachute Member, part of the Green River Formation, in the Piceance Creek Basin, Garfield County, northwestern Colorado, USA.
Buthus is a genus of scorpion belonging and being eponymous to the family Buthidae. It is distributed widely across northern Africa, including Morocco, Mauritania, Algeria, Tunisia, Libya, Egypt, Senegal, Guinea-Bissau, Nigeria, Sudan, Somalia, Ethiopia, Djibouti, as well as the Middle East, including Israel, Palestine, Jordan, Lebanon, Iraq, Yemen, and possibly Saudi Arabia and southern Turkey. Its European range includes the Iberian Peninsula, southern France, and Cyprus.
The Chactidae are a family of scorpions established by Reginald Innes Pocock in 1893. They make up the superfamily Chactoidea.
The Euscorpiidae are a family of scorpions.
Diplocentridae is a family of scorpions. The roughly 120 species are mostly native to the New World, except for genus Nebo, which is distributed in the Middle East.
Smeringurus is a small genus of scorpions native to Mexico and the southwestern United States within the family Vaejovidae. It is closely related to the genus Paruroctonus, of which it was formerly considered a subgenus.
The Iuridae are a family of scorpions in the order Scorpiones. Six genera and at least 20 described species are placed in the Iuridae.
Kovarikia, is a genus of scorpion belonging to the family Scorpionidae. All described species are restricted to humid rocky microhabitats of southern California. Three species identified.
Vaejovis carolinianus, the southern unstriped scorpion, also known as the Southern Devil Scorpion, is a species of scorpion in the family Vaejovidae.
Neobuthus is a genus of scorpion of the family Buthidae. It is distributed across the Horn of Africa; in Eritrea, Ethiopia, Somaliland, Kenya and Djibouti.
Uroctonus is a genus of forest scorpions in the family Vaejovidae. There are at least four described species in Uroctonus.
Serradigitus is a genus of sawfinger scorpions in the family Vaejovidae. There are more than 20 described species in Serradigitus.
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