''Neostenotarsus'' is a genus of

theraphosid Tarantulas comprise a group of large and often hairy spiders of the family Theraphosidae. , 1,100 species have been identified, with 166 genera. The term "tarantula" is usually used to describe members of the family Theraphosidae, although ...

spider Spiders (order (biology), order Araneae) are air-breathing arthropods that have eight limbs, chelicerae with fangs generally able to inject venom, and spinnerets that extrude spider silk, silk. They are the largest order of arachnids and ran ...

, in the

Theraphosinae The Theraphosinae are a large subfamily of Mygalomorphae spiders in the family Theraphosidae found primarily in the Neotropical realm. Genera The subfamily Theraphosinae includes these genera: * '' Abdomegaphobema'' * '' Acanthoscurria'' * '' ...

subfamily. It is native to

French Guiana French Guiana, or Guyane in French, is an Overseas departments and regions of France, overseas department and region of France located on the northern coast of South America in the Guianas and the West Indies. Bordered by Suriname to the west ...

. It is

monotypic In biology, a monotypic taxon is a taxonomic group (taxon) that contains only one immediately subordinate taxon. A monotypic species is one that does not include subspecies or smaller, infraspecific taxa. In the case of genera, the term "unisp ...

, the only species being ''Neostenotarsus scissistylus''.''Neostenotarsus scissistylus'' Tesmoingt & Schmidt, 2002
''World Spider Catalog''. Natural History Museum of Bern. Retrieved February 21, 2016.

Taxonomy

The sole species was described in 2002 by

Marc Tesmoingt Marc or MARC may refer to: People * Marc (given name), people with the first name * Marc (surname), people with the family name Acronyms * MARC standards, a data format used for library cataloging, * MARC Train, a regional commuter rail system s ...

and

Gunter Schmidt Gunter Schmidt (born 22 November 1938) is a Germans, German sexologist, psychotherapist and social psychologist. He was born in Berlin. Schmidt was the director of the centre for sexual research in the clinic of the University Medical Center Ham ...

as ''Stenotarsus scissistylus''. However, the genus name was found to be occupied by the cold-enduring beetle, ''

Stenotarsus ''Stenotarsus'' is a genus of handsome fungus beetles in the family Endomychidae. There are more than 50 described species in ''Stenotarsus''. Species These 59 species belong to the genus ''Stenotarsus'': * '' Stenotarsus affaber'' Boheman, 184 ...

'',Oldřich Nedvê
''Chill tolerance in the tropical beetle Stenotarsus rotundus''
''Pubmed''. National Center for Biotechnology Information. Retrieved February 21, 2016. and the name was changed to ''Neostenotarsus scissistylus''. ''Neostenotarsus'' translates as ''"new thin foot"'' (

Ancient Greek Ancient Greek (, ; ) includes the forms of the Greek language used in ancient Greece and the classical antiquity, ancient world from around 1500 BC to 300 BC. It is often roughly divided into the following periods: Mycenaean Greek (), Greek ...

; στενος = "thin", ταρσυς = "foot"), and ''scissistylus'' from

Latin Latin ( or ) is a classical language belonging to the Italic languages, Italic branch of the Indo-European languages. Latin was originally spoken by the Latins (Italic tribe), Latins in Latium (now known as Lazio), the lower Tiber area aroun ...

"''scissus''": "torn" or "tattered"; and Greek "στυλος": "keel", referring to the

embolus An embolus (; : emboli; from the Greek ἔμβολος "wedge", "plug") is an unattached mass that travels through the circulatory system, bloodstream and is capable of creating blockages. When an embolus Vascular occlusion, occludes a blood vess ...

.Tesmoingt, M. & Schmidt, G. (2002). ''Stenotarsus scissistylus'' gen. et sp. n. (Theraphosidae: Theraphosinae), eine Vogelspinne aus Französisch Guyana. Tarantulas of the World 76: 3-12.

Characteristics

''N. scissistylus'' has (in the male) a deeply rutted keel on the embolus, which is distally widened. In the female, the

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

e are widely fused with two little heads of different shape. In both sexes the

fovea Fovea () (Latin for "pit"; plural foveae ) is a term in anatomy. It refers to a pit or depression in a structure. Human anatomy *Fovea centralis of the retina * Fovea buccalis or dimple * Fovea of the femoral head * Trochlear fovea of the fr ...

is procurved.

References

{{Taxonbar, from=Q10798144 Theraphosidae Spiders of South America Monotypic Theraphosidae genera