A Revision of the Generacoproporusandcilea(coleoptera: Staphylinidae) of America North of Mexico

The nine species ofCoproporusKraatz andCilea silphoides(Linné) of America, north of Mexico are revised. No new species are described.Coproporus maneeiScheerpeltz is placed in synonymy withC.ventriculus(Say). Based on examination of type material, a number of Latin American species formerly considered as synonyms, are recognized as valid species. These includeconvexus(Erichson) andignavus(Sharp) which are distinct fromhepaticus(Erichson); andterminatus(Erichson) which is distinct fromrutilus(Erichson). Coproporus rutilus piceorufusfrom Argentina and Brasil andC.rutilus obscuriorfrom Panama, both described as aberrations by Bernhauer (1918), are elevated to specific status.Coproporus segnis, formerly known from Mexico and Panama, is reported from the United States for the first time. The usage of bothCoproporusKraatz andCileaJacquelin du Val has been confused in previous publications. The synonymy and priority ofCoproporusvs.ErchomusMotschulsky andCileavs.LeucoparyphusKraatz are discussed. Each genus and species is described and the distribution of each species is mapped. The male genitalia of each species are drawn and the major diagnostic characters are illustrated with scanning electron photomicrographs. A diagnostic key to all the taxa is included.