Abstract
All parasitic stages of Amblyomma boeroi n. sp. (Acari: Ixodidae) are described here from Catagonus wagneri (Rusconi) in Argentina. The diagnostic characters for the male are a combination of orbited eyes, a 2/2 dental formula, coxa IV considerably larger than coxae I–III and with a long, sickle-shaped, medially directed spur arising from its internal margin, a scutum which is light grey to very pale ivory in colour, and the absence of a postanal groove. The diagnostic characters for the females are a combination of orbited eyes, a central pair and two marginal pairs of short, coarse notal setae, a 2/2 dental formula, and the absence of a postanal groove. The nymph has short palpi and a 2/2 dental formula arranged in 6 rows, its eyes are convex and orbited, and it has no postanal groove. The dorsally rectangular basis capituli of the larva, its bulging eyes and slightly sinuous posterior scutal margin all serve to distinguish it from the larva of other species of the genus. The principal host for all parasitic stages is C. wagneri (Artiodactyla: Tayassuidae). Phylogenetically A. boeroi appears to represent an independent lineage within Amblyomma Koch, 1844.
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Acknowledgements
We are indebted to Ivan Horak for his valuable comments on an earlier version of this study. We acknowledge the financial support of INTA and the Asociación Cooperadora EEA-INTA Rafaela to SN, AJM, MM and AAG. Carlos Sardina, Miguel Flores and Elias Correa assisted with the fieldwork. We thank Patricia Sarmiento (Servicio de Microscopía Electrónica, Museo de La Plata, Argentina) for preparing the scanning electron micrographs and Oscar Warnke, Fernando Seguro and Pablo Salusso for technical assistance in the laboratory.
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Nava, S., Mangold, A.J., Mastropaolo, M. et al. Amblyomma boeroi n. sp. (Acari: Ixodidae), a parasite of the Chacoan peccary Catagonus wagneri (Rusconi) (Artiodactyla: Tayassuidae) in Argentina. Syst Parasitol 73, 161–174 (2009). https://doi.org/10.1007/s11230-009-9191-9
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DOI: https://doi.org/10.1007/s11230-009-9191-9