RESUMEN: Se describe una nueva familia de acaros Mesostigmata, Coprozerconidae,
basad a en material procedente de heces de la rata de bosque, Neotomafloridana magister
Baird, de una cueva de Kentucky, E.U.A. Coprozercon gen. n. se describe como genero
tipo de esta familia, basandose en el material que representa a la especie tipo, Coprozercon
scopaeus sp. n. Se discuten las caracteristicas de esta familia con relaci6n alas demas
de la cohorte Epicriina, incluyendo una discusi6n de Coprozerconidae como el "grupohermanado"
de Zerconidae. Se traslada el genero Halozercon Wisniewski, Karg y
Hirschmann, 1992, desde la familia podoespermica Halolaelapidae a la familia tocoespermica
Zerconidae.SUMMARYA: new family of mesostigmatic mites, Coprozerconidae, is described on the
basis of material collected from feces of the wood rat, Neotomafloridana magister Baird,
in a cave in Kentucky, U.S.A. Coprozercon n. gen. is described as the type genus of the
family, based on material representing the type species, Coprozercon scopaeus n. sp. The
characteristics and relationships of this family among others of the cohort Epicriina are
discussed, including a rationale for Coprozerconidae as the sister group of Zerconidae.
The tocospermous genus Halozercon Wisniewski, Karg and Hirschmann, 1992, is transferred
from the podospermous family Halolaelapidae to the tocospermous family Zerconidae
