''Euathlus'' is a

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial n ...

of South American

tarantulas Tarantulas comprise a group of large and often hairy spiders of the family Theraphosidae. , 1,040 species have been identified, with 156 genera. The term "tarantula" is usually used to describe members of the family Theraphosidae, although ...

that was first described by

Anton Ausserer Anton Ausserer (5 July 184320 July 1889)Maurer, Ferdinand: ''Nachruf an Dr. Anton Ausserer.'' Programm des kk. acad. Gymnasiums in Grätz. Graz 1890 was an Austrian naturalist specialising in spiders.Bonnet, Pierre: Bibliographia aranearum, Les ...

in 1875. These spiders are medium sized and are usually found in high elevations in the

Andes The Andes, Andes Mountains or Andean Mountains (; ) are the longest continental mountain range in the world, forming a continuous highland along the western edge of South America. The range is long, wide (widest between 18°S – 20°S ...

. It is a senior synonym of ''Paraphysa'', and was formerly considered a senior synonym of '' Brachypelma'', but this was later rejected.

Diagnosis

Males own a

palpal bulb The two palpal bulbs – also known as palpal organs and genital bulbs – are the copulatory organs of a male spider. They are borne on the last segment of the pedipalps (the front "limbs" of a spider), giving the spider an appearance often desc ...

with two

prolateral This glossary describes the terms used in formal descriptions of spiders; where applicable these terms are used in describing other arachnids. Links within the glossary are shown . Terms A Abdomen or opisthosoma: One of the two main body part ...

keels, with the tip curved retrolaterally. The tibial apophyses has retrolateral spines and a spine on the

retrolateral Standard anatomical terms of location are used to unambiguously describe the anatomy of animals, including humans. The terms, typically derived from Latin or Greek roots, describe something in its standard anatomical position. This position ...

branch which almost reached the apex. And a urticating patch in the center of the

opisthosoma The opisthosoma is the posterior part of the body in some arthropods, behind the prosoma ( cephalothorax). It is a distinctive feature of the subphylum Chelicerata (arachnids, horseshoe crabs and others). Although it is similar in most respects ...

, which own mainly type 3 and 4

urticating hair Urticating hairs or urticating bristles are one of the primary defense mechanisms used by numerous plants, almost all New World tarantulas, and various lepidopteran caterpillars. ''Urtica'' is Latin for "nettle" (stinging nettles are in the gen ...

s. Females also can be distinguished by two 4 sided

spermatheca The spermatheca (pronounced plural: spermathecae ), also called receptaculum seminis (plural: receptacula seminis), is an organ of the female reproductive tract in insects, e.g. ants, bees, some molluscs, oligochaeta worms and certain othe ...

l receptacles, with sphere like chambers.

Species

it contains fourteen species, found in

Argentina Argentina (), officially the Argentine Republic ( es, link=no, República Argentina), is a country in the southern half of South America. Argentina covers an area of , making it the second-largest country in South America after Brazil, t ...

Chile Chile, officially the Republic of Chile, is a country in the western part of South America. It is the southernmost country in the world, and the closest to Antarctica, occupying a long and narrow strip of land between the Andes to the eas ...

and

Peru , image_flag = Flag of Peru.svg , image_coat = Escudo nacional del Perú.svg , other_symbol = Great Seal of the State , other_symbol_type = Seal (emblem), National seal , national_motto = "Fi ...

: *''

Euathlus affinis ''Euathlus affinis'' is a species of spider belonging to the family Theraphosidae (tarantulas). It is native to Chile. Taxonomy The species was first described in 1849 as ''Mygale affinis''. However, ''Mygale'' had been used previously for a gen ...

'' (Nicolet, 1849) –

*'' Euathlus antai'' Perafán & Pérez-Miles, 2014 – Chile *'' Euathlus atacama'' Perafán & Pérez-Miles, 2014 – Chile *'' Euathlus condorito'' Perafán & Pérez-Miles, 2014 – Chile *''

Euathlus diamante ''Euathlus'' is a genus of South American tarantulas that was first described by Anton Ausserer in 1875. These spiders are medium sized and are usually found in high elevations in the Andes. It is a senior synonym of ''Paraphysa'', and was formerl ...

'' Ferretti, 2015 –

*''

Euathlus grismadoi ''Euathlus'' is a genus of South American tarantulas that was first described by Anton Ausserer in 1875. These spiders are medium sized and are usually found in high elevations in the Andes. It is a senior synonym of ''Paraphysa'', and was formerl ...

'' Ríos-Tamayo, 2020 – Argentina *''

Euathlus manicata ''Euathlus'' is a genus of South American tarantulas that was first described by Anton Ausserer in 1875. These spiders are medium sized and are usually found in high elevations in the Andes. It is a senior synonym of ''Paraphysa'', and was formerl ...

'' ( Simon, 1892) – Chile *''

Euathlus mauryi ''Euathlus'' is a genus of South American tarantulas that was first described by Anton Ausserer in 1875. These spiders are medium sized and are usually found in high elevations in the Andes. It is a senior synonym of ''Paraphysa'', and was formerl ...

'' Ríos-Tamayo, 2020 – Argentina *''

Euathlus pampa ''Euathlus'' is a genus of South American tarantulas that was first described by Anton Ausserer in 1875. These spiders are medium sized and are usually found in high elevations in the Andes. It is a senior synonym of ''Paraphysa'', and was form ...

'' Ríos-Tamayo, 2020 – Argentina *''

Euathlus parvulus ''Euathlus'' is a genus of South American tarantulas that was first described by Anton Ausserer in 1875. These spiders are medium sized and are usually found in high elevations in the Andes. It is a senior synonym of ''Paraphysa'', and was form ...

'' (

Pocock Pocock is a surname, and may refer to: *Andrew Pocock (born 1955), British High Commissioner to Nigeria * Barbara Pocock, one of the candidates of the 2022 Australian federal election * Bill Pocock (1884–1959), English footballer * Blair Pocock ...

, 1903) – Chile *''

Euathlus sagei ''Euathlus'' is a genus of South American tarantulas that was first described by Anton Ausserer in 1875. These spiders are medium sized and are usually found in high elevations in the Andes. It is a senior synonym of ''Paraphysa'', and was formerl ...

'' Ferretti, 2015 – Argentina *''

Euathlus tenebrarum ''Euathlus'' is a genus of South American tarantulas that was first described by Anton Ausserer in 1875. These spiders are medium sized and are usually found in high elevations in the Andes. It is a senior synonym of ''Paraphysa'', and was form ...

'' Ferretti, 2015 – Argentina *''

Euathlus truculentus ''Euathlus'' is a genus of South American tarantulas that was first described by Anton Ausserer in 1875. These spiders are medium sized and are usually found in high elevations in the Andes. It is a senior synonym of ''Paraphysa'', and was formerl ...

'' L. Koch, 1875 (

type Type may refer to: Science and technology Computing * Typing, producing text via a keyboard, typewriter, etc. * Data type, collection of values used for computations. * File type * TYPE (DOS command), a command to display contents of a file. * Ty ...

) – Chile, Argentina *''

Euathlus vanessae ''Euathlus'' is a genus of South American tarantulas that was first described by Anton Ausserer in 1875. These spiders are medium sized and are usually found in high elevations in the Andes. It is a senior synonym of ''Paraphysa'', and was formerl ...

'' Quispe-Colca & Ferretti, 2021 –

In synonymy

*''E. phryxotrichoides'' (Strand, 1907) = ''

Nomen dubium In binomial nomenclature, a ''nomen dubium'' (Latin for "doubtful name", plural ''nomina dubia'') is a scientific name that is of unknown or doubtful application. Zoology In case of a ''nomen dubium'' it may be impossible to determine whether a s ...

* ''Euathlus roseus'' (Guérin, 1838) - Chile

Transferred to other genera

References

Theraphosidae genera Spiders of South America Taxa named by Anton Ausserer Theraphosidae {{Theraphosidae-stub

Diagnosis

Species

In synonymy

Nomen dubium In binomial nomenclature, a ''nomen dubium'' (Latin for "doubtful name", plural ''nomina dubia'') is a scientific name that is of unknown or doubtful application. Zoology In case of a ''nomen dubium'' it may be impossible to determine whether a s ...

Transferred to other genera

See also

References