Laelaps is a genus of common parasitic mites in the family Laelapidae. Species, with their hosts, include: * – Oecomys * – Rattus * – Blarina, Dicrostonyx, Lemmiscus, Lemmus, Microtus, Mustela, Myodes, Myotis, Napaeozapus, Ochrotomys, Ondatra, Onychomys, Parascalops, Peromyscus, Phenacomys, Poliocitellus, Sorex, Synaptomys, Thomomys * – Neacomys, Sigmodon, Oligoryzomys, Oecomys, Heteromys * – Oligoryzomys * – Microtus, Myodes * – Rhipidomys * – Oryzomyini * – Zygodontomys * * – Rattus, Didelphis, Sigmodon, Mus, Peromyscus, Sylvilagus * – Neofiber * – "wild rat" * – Microryzomys * – Lemniscomys * – Microtus, Neotamias, Peromyscus * – Blarina, Corynorhinus, Dicrostonyx, Dipodomys, Glaucomys, Microtus, Mustela, Myodes, Napaeozapus, Neotamias, Neovison, Neurot