Cyriocosmus

Cyriocosmus is a genus of tarantulas that was first described by Eugène Louis Simon in 1903.^[4] They are small to medium spiders, with a bicolored or one same color carapace.^[5]

Cyriocosmus
Cyriocosmus elegans
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Subphylum:	Chelicerata
Class:	Arachnida
Order:	Araneae
Infraorder:	Mygalomorphae
Family:	Theraphosidae
Genus:	Cyriocosmus Simon, 1903[1]
Type species
C. sellatus (Simon, 1889)
Species
23, see text
Synonyms[1]
Erythropoicila Fischel, 1927[2] Pseudohomoeomma Mello-Leitão, 1930[3]

Diagnosis

It differs from all other tarantulas by the paraembolic apophysis in the palpal bulbs of males, and a spermatheca with two spiral receptacles, which usually end in a caliciform or globular extension. Except for C. nogueiranetoi, which owns a S shape extension. All the species also own type 3 urticating hairs.^[5]

Species

As of July 2022^[update] it contains twenty-three species, found in South America, on Tobago, and Trinidad:^[1]

• Cyriocosmus aueri Kaderka, 2016 – Peru
• Cyriocosmus bertae Pérez-Miles, 1998 – Brazil
• Cyriocosmus bicolor (Schiapelli & Gerschman, 1945) – Brazil^[6]
• Cyriocosmus blenginii Pérez-Miles, 1998 – Bolivia
• Cyriocosmus elegans (Simon, 1889) – Venezuela, Trinidad and Tobago
• Cyriocosmus fasciatus (Mello-Leitão, 1930) – Brazil
• Cyriocosmus fernandoi Fukushima, Bertani & da Silva, 2005 – Brazil
• Cyriocosmus foliatus Kaderka, 2019 – Peru
• Cyriocosmus giganteus Kaderka, 2016 – Peru
• Cyriocosmus hoeferi Kaderka, 2016 – Brazil
• Cyriocosmus itayensis Kaderka, 2016 – Peru
• Cyriocosmus leetzi Vol, 1999 – Colombia, Venezuela
• Cyriocosmus nicholausgordoni Kaderka, 2016 – Venezuela
• Cyriocosmus nogueiranetoi Fukushima, Bertani & da Silva, 2005 – Brazil
• Cyriocosmus paredesi Kaderka, 2019 – Peru
• Cyriocosmus perezmilesi Kaderka, 2007 – Bolivia
• Cyriocosmus peruvianus Kaderka, 2016 – Peru
• Cyriocosmus pribiki Pérez-Miles & Weinmann, 2009 – Peru
• Cyriocosmus ritae Pérez-Miles, 1998 – Peru, Brazil
• Cyriocosmus sellatus (Simon, 1889) (type) – Peru, Brazil
• Cyriocosmus venezuelensis Kaderka, 2010 – Venezuela
• Cyriocosmus versicolor (Simon, 1897) – Paraguay, Argentina
• Cyriocosmus williamlamari Kaderka, 2016 – Venezuela

In synonymy

• C. chicoi Pérez-Miles, 1998 = Cyriocosmus bicolor
• C. planus (Fischel, 1927) = Cyriocosmus elegans
• C. rogerioi Pérez-Miles & Weinmann, 2009 = Cyriocosmus pribiki
• C. semifasciatus Mello-Leitão, 1939 = Cyriocosmus elegans

Transferred to other genera

• Cyriocosmus butantan Pérez-Miles, 1998 → Hapalopus butantan
• Cyriocosmus nigriventris Mello-Leitão, 1939 → Hapalopus nigriventris

See also

• List of Theraphosidae species