Amblyomma rotundatum Koch 1844

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.