Ixodidae (Acari: Ixodoidea): descriptions and redescriptions of all known species from 1758 to December 31, 2019 Author Guglielmone, Alberto A. 0000-0001-5430-2889 guglielmone.alberto@inta.gob.ar Author Petney, Trevor N. 0000-0002-9135-4546 trevor.petney@smnk.de Author Robbins, Richard G. 0000-0001-5430-2889 guglielmone.alberto@inta.gob.ar text Zootaxa 2020 2020-11-05 4871 1 1 322 journal article 7890 10.11646/zootaxa.4871.1.1 344f8a86-21a1-428e-ae4f-01ea6082254a 1175-5326 4423340 C21A719F-9A6B-4227-8386-1AFA22620614 109. Amblyomma rotundatum Koch, 1844a . A Nearctic and Neotropical parthenogenetic species also present on an island in the Pacific Ocean, whose females, nymphs and larvae are usually found on Anura : Bufonidae , and Squamata : Boidae , but they have also been collected from Squamata : Teiidae and Viperidae . Females and nymphs have been recovered from Squamata : Colubridae , Iguanidae and Phrynosomatidae ; Crocodilia: Alligatoridae , and Testudines : Testudinidae ; female ticks alone have been taken from Anura : Pipidae and Leptodactylidae , Squamata : Elapidae and Tropiduridae , Testudines (several families), and Mammalia (several orders); nymphs and larvae have been found on Squamata : Scincidae ; nymphs alone have been collected from Passeriformes : Turdidae , and Rodentia : Caviidae ( Nava et al. 2017 , Guglielmone & Robbins 2018 , Oda et al. 2018 , Zimmermann et al. 2018 , Gruhn et al. 2019 ). Amblyomma rotundatum is a very rare parasite of humans. M: Keirans and Oliver (1993) described a male with some gynandromorphic characters from a laboratory colony, while Labruna et al. (2005a) described a normal male collected in nature; see note below F: Koch (1844a) N: Aragão (1912b) , under the name Amblyomma agamum , a synonym of Amblyomma rotundatum L: Aragão (1912b) , under the name Amblyomma agamum Redescriptions M: Voltzit (2007) , Nava et al. (2017) ; see note below F: Koch (1847) , Neumann (1899) , Robinson (1926) , Floch and Abonnenc (1940) , Boero (1957) , Floch and Fauran (1958) , Voltzit (2007) , Guzmán-Cornejo et al. (2011) , Nava et al. (2017) , Bermúdez et al. (2018) , Dantas-Torres et al. (2019b) N: Keirans and Oliver (1993) , Keirans and Durden (1998) , Martins et al. (2010 , 2014), Nava et al. (2017) L: Bárbara and Dios (1918) under the name Amblyomma agamum , Keirans and Oliver (1993) , Amorim and Serra-Freire (1995) Note: Amblyomma rotundatum is a parthenogenetic species, but male specimens have been collected in nature from time to time in Brazil ( Gianizella et al. 2018a ); therefore, records of unusual numbers of males of this tick, as in Pietszch et al. (2006) and Rodríguez-Vivas et al. (2016), without further discussion of such unexpected findings, require confirmation. See also Amblyomma dissimile and Amblyomma goeldii for their confusion with Amblyomma rotundatum .