I collected larvae of Eutrombicula alfreddugesi for the first time parasitizing Gerrhonotus infernalis, Sceloporus poinsetti, S. jarrovii, and S. grammicus as new host records for Coahuila, Mexico. Lizards were collected in the submontane scrub of the Sierra de Jimulco, Coahuila, Mexico. In G. infernalis, there was a large number of mites in small groups, primarily along the flanks protected by the granular fold. All species of Sceloporus had mites in the neck region grouped behind the eardrums and protected by lateral gular folds. Type of vegetation and available substrates in this part of the Sierra de Jimulco create microhabitats that can support this mite.