TL;DR: It is concluded that Glaresis lies near the base of the ancestral stock from which most scarabaeoids evolved, and it is proposed that the monotypic tribe Glaresini Semenov & Medvedev will be accorded family status.
Abstract: . The genus Glaresis does not share any demonstrable apomorphs with any other group of Scarabaeoidea. Detailed examination of twelve adult characters and their comparison with those in all the primitive Scarabaeoidea resulted in a well-defined genus that is primitive in virtually all its characters. It is concluded that Glaresis lies near the base of the ancestral stock from which most scarabaeoids evolved. Since the genus cannot be accommodated in an existing higher taxon we propose that the monotypic tribe Glaresini Semenov & Medvedev (the genus Afroglaresis Petrovitz is here synonymized with Glaresis), be accorded family status.
TL;DR: Diagnostic characters of Glaringis mendica Horn are discussed, and an undescribed species, confused with G. mendica by authors subsequent to Horn, is described as Glaresis gordoni new species.
Abstract: Diagnostic characters of Glaresis mendica Horn are discussed, and an undescribed species, confused with G. mendica by authors subsequent to Horn, is described as Glaresis gordoni new species. A second new species, Glaresis zvirgzdinsi, is described from two isolated sand dunes in Yuma County, Arizona, USA Diagnostic characters of the new species, as well as those of G. mendica, are illustrated.
TL;DR: A cladistic analysis of the Trogidae using eighteen adult characters resulted in a monophyletic group from which the genera Glaresis Erichson, Afroglaresis Petrovitz and Cryptogenius Westwood are excluded.
Abstract: . A cladistic analysis of the Trogidae using eighteen adult characters resulted in a monophyletic group from which the genera Glaresis Erichson, Afroglaresis Petrovitz and Cryptogenius Westwood are excluded. The Trogidae as here defined comprises three genera, Trox Fabricius (with two subgenera, Trox and Phoberus Macleay), Omorgus Erichson (with three subgenera, Omorgus, Afromorgussubg.n. and Haroldomorgussubg.n.) and Polynoncus Burmeister.