''Ischnocolus'' is a

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus com ...

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 m ...

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 1871. This

tarantula 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 ...

genus includes some of the smallest in the family.

Diagnosis

Males of this genus can be distinguished by the

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 descr ...

morphology, which owns a slightly bent apical end. Females can be distinguished by the morphology of the

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 other ...

, which is made up of two twisted receptacles.

Species

it contains eight species, found in Europe, Asia, Africa, and

Brazil Brazil ( pt, Brasil; ), officially the Federative Republic of Brazil (Portuguese: ), is the largest country in both South America and Latin America. At and with over 217 million people, Brazil is the world's fifth-largest country by area ...

: *''

Ischnocolus elongatus ''Ischnocolus'' is a genus of tarantulas that was first described by Anton Ausserer in 1871. This tarantula genus includes some of the smallest in the family. Diagnosis Males of this genus can be distinguished by the palpal bulb morphology, wh ...

'' ( Simon, 1873) –

Morocco Morocco (),, ) officially the Kingdom of Morocco, is the westernmost country in the Maghreb region of North Africa. It overlooks the Mediterranean Sea to the north and the Atlantic Ocean to the west, and has land borders with Algeria to ...

Algeria ) , image_map = Algeria (centered orthographic projection).svg , map_caption = , image_map2 = , capital = Algiers , coordinates = , largest_city = capital , relig ...

*'' Ischnocolus hancocki'' Smith, 1990 – Morocco *''

Ischnocolus ignoratus ''Ischnocolus'' is a genus of tarantulas that was first described by Anton Ausserer in 1871. This tarantula genus includes some of the smallest in the family. Diagnosis Males of this genus can be distinguished by the palpal bulb morphology, wh ...

'' Guadanucci & Wendt, 2014 –

Israel Israel (; he, יִשְׂרָאֵל, ; ar, إِسْرَائِيل, ), officially the State of Israel ( he, מְדִינַת יִשְׂרָאֵל, label=none, translit=Medīnat Yīsrāʾēl; ), is a country in Western Asia. It is situated ...

Syria Syria ( ar, سُورِيَا or سُورِيَة, translit=Sūriyā), officially the Syrian Arab Republic ( ar, الجمهورية العربية السورية, al-Jumhūrīyah al-ʻArabīyah as-Sūrīyah), is a Western Asian country loc ...

*''

Ischnocolus jickelii ''Ischnocolus jickelii'' is a small, old-world tarantula. It is found in Aden, Djibouti, Ethiopia, the United Arab Emirates and Somalia. It was first described by Ludwig Carl Christian Koch, Ludwig Koch in 1875. In 1890, French Arachnology, arachn ...

'' L. Koch, 1875 – Ethiopia,

Eritrea Eritrea ( ; ti, ኤርትራ, Ertra, ; ar, إرتريا, ʾIritriyā), officially the State of Eritrea, is a country in the Horn of Africa region of Eastern Africa, with its capital and largest city at Asmara. It is bordered by Ethiopia ...

, Djibouti, Somalia, Yemen, Saudi Arabia, Oman, United Arab Emirates *''

Ischnocolus mogadorensis ''Ischnocolus'' is a genus of tarantulas that was first described by Anton Ausserer in 1871. This tarantula genus includes some of the smallest in the family. Diagnosis Males of this genus can be distinguished by the palpal bulb morphology, wh ...

'' Simon, 1909 - Morocco, Western

Sahara , photo = Sahara real color.jpg , photo_caption = The Sahara taken by Apollo 17 astronauts, 1972 , map = , map_image = , location = , country = , country1 = , ...

*''

Ischnocolus rubropilosus ''Ischnocolus'' is a genus of Theraphosidae, tarantulas that was first described by Anton Ausserer in 1871. This tarantula genus includes some of the smallest in the family. Diagnosis Males of this genus can be distinguished by the palpal bulb ...

Keyserling Keyserling is the surname of several members of the noble House of Keyserlingk: * Alexander Keyserling (1815–1891), Russian geologist, paleontologist, botanist and zoologist * Eugen von Keyserling (1833–1889), German arachnologist * Hermann ...

, 1891 –

*''

Ischnocolus tomentosus ''Ischnocolus'' is a genus of tarantulas that was first described by Anton Ausserer in 1871. This tarantula genus includes some of the smallest in the family. Diagnosis Males of this genus can be distinguished by the palpal bulb morphology, wh ...

'' Thorell, 1899 – Cameroon,

Congo Congo or The Congo may refer to either of two countries that border the Congo River in central Africa: * Democratic Republic of the Congo, the larger country to the southeast, capital Kinshasa, formerly known as Zaire, sometimes referred to a ...

*''

Ischnocolus valentinus ''Ischnocolus valentinus'' is a small, old-world tarantula. It is found in Spain, Italy, Morocco, Algeria, Tunisia and Libya. It is the only species of true tarantula to occur in continental Europe. It is the type species of the genus '' Ischnoco ...

'' (Dufour, 1820) (

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 ...

) – Spain, Italy ( Sicily), Morocco, Algeria, Tunesia, Libya *'' Ischnocolus vanandelae'' Montemor, West & Zamani, 2020 – Oman, Iran

In synonymy

*''I. adenensis'' (Simon, 1890) = ''Ischnocolus jickelii'' L. Koch, 1875 *''I. africanus'' (Ausserer, 1875) = ''Ischnocolus elongatus'' (Simon, 1873) *''I. algericus'' Thorell, 1875 = ''Ischnocolus valentinus'' (Dufour, 1820) *''I. andalusiacus'' (Simon, 1873) = ''Ischnocolus valentinus'' (Dufour, 1820) *''I. cavicola'' (Simon, 1889) = ''Ischnocolus valentinus'' (Dufour, 1820) *''I. fuscostriatus'' Simon, 1885 = ''Ischnocolus valentinus'' (Dufour, 1820) *''I. holosericeus'' L. Koch, 1871 = ''Ischnocolus valentinus'' (Dufour, 1820) *''I. maroccanus'' (Simon, 1873) = ''Ischnocolus valentinus'' (Dufour, 1820) *''I. mogadorensis'' Simon, 1909 = ''Ischnocolus valentinus'' (Dufour, 1820) *''I. numidus'' Simon, 1909 = ''Ischnocolus valentinus'' (Dufour, 1820) *''I. triangulifer'' Ausserer, 1871 = ''Ischnocolus valentinus'' (Dufour, 1820) *''I. tripolitanus'' Caporiacco, 1937 = ''Ischnocolus valentinus'' (Dufour, 1820)

Nomina dubia 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

References