Tmesiphantes is a genus of Brazilian tarantulas in the subfamily Theraphosinae that was first described by Eugène Louis Simon in 1892. The genera Magulla and Melloleitaoina were brought into synonymy in 2019.
Species it contains 22 species, found in Brazil and Argentina: Tmesiphantes amadoi Yamamoto, Lucas, Guadanucci & Indicatti, 2007 - Brazil Tmesiphantes amazonicus Fabiano-da-Silva, Guadanucci & DaSilva, 2019 - Brazil Tmesiphantes aridai Gonzalez-Filho, Brescovit & Lucas, 2014 - Brazil Tmesiphantes bethaniae Yamamoto, Lucas, Guadanucci & Indicatti, 2007 - Brazil Tmesiphantes brescoviti (Indicatti, Lucas, Guadanucci & Yamamoto, 2008) - Brazil Tmesiphantes buecherli (Indicatti, Lucas, Guadanucci & Yamamoto, 2008) - Brazil Tmesiphantes caymmii Yamamoto, Lucas, Guadanucci & Indicatti, 2007 - Brazil Tmesiphantes crassifemur (Gerschman & Schiapelli, 1960) - Argentina Tmesiphantes guayarus Fabiano-da-Silva, Guadanucci & DaSilva, 2019 - Brazil Tmesiphantes hypogeus Bertani, Bichuette & Pedroso, 2013 - Brazil Tmesiphantes intiyaykuy Nicoletta, Ferretti, Chaparro & West, 2022 - Peru Tmesiphantes janeira (Keyserling, 1891) - Peru Tmesiphantes mirim Fabiano-da-Silva, Guadanucci & DaSilva, 2015 - Brazil Tmesiphantes mutquina (Perafán & Pérez-Miles, 2014) - Argentina Tmesiphantes nordestinus Fabiano-da-Silva, Guadanucci & DaSilva, 2019 - Brazil Tmesiphantes nubilus Simon, 1892 (type) - Brazil Tmesiphantes obesus (Simon, 1892) - Brazil Tmesiphantes perp Guadanucci & Silva, 2012 - Brazil Tmesiphantes raulseixasi Fabiano-da-Silva, Guadanucci & DaSilva, 2019 - Brazil Tmesiphantes riopretano Guadanucci & Silva, 2012 - Brazil Tmesiphantes uru (Perafán & Pérez-Miles, 2014) - Argentina Tmesiphantes yupanqui (Perafán & Pérez-Miles, 2014) - Argentina
Formerly included: T. elegans Gerschman & Schiapelli, 1958 (Transferred to Homoeomma) T. serratus Gerschman & Schiapelli, 1958 (Transferred to Homoeomma) T. spinopalpus Schaefer, 1996 (Transferred to Cyclosternum)
Nomen dubium T. chickeringi Caporiacco, 1955
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