Redescription of Amblyomma varium Koch, 1844 (Acari: Ixodidae) based on light and scanning electron microscopy - Onofrio, Valeria Castilho; Battesti, Darci Moraes Barros; Marques, Sandro; Faccini, João Luiz Horácio; Labruna, Marcelo Bahia; Beati, Lorenza; Guglielmone, Alberto Alejandro (Systematic Parasitology, 2008)