New MacrochelePratums species (Acari Mesostigmata Macrochelidae) associated with burying beetles (Silphidae Nicrophorus) in North America

摘要

Burying beetles (Silphidae, Nicrophorus) are hosts to a broad diversity of mites (Acari), including several species of Macrocheles Latreille, 1829 (Mesostigmata, Macrochelidae). The macrochelid fauna associated with silphids primarily in North America was surveyed; in total, 1659 macrochelids representing seven species were collected from 112 Nicrophorus beetles representing nine host species. Three new species of Macrocheles were discovered during the survey and described as Macrocheles willowae >sp. n., M. pratum >sp. n., and M. kaiju >sp. n. The barcode region of cytochrome oxidase subunit I (COI) was amplified from the three new described species, as well as M. nataliae and M. praedafimetorum, and analysed in a small phylogeny.