Four new species of Acoma Casey, with a key to species in the genus (Coleoptera: Scarabaeidae: Melolonthinae)

Acoma howdenorum, Acoma westcotti, Acoma quadrilaminata, and Acoma cimarron (Coleoptera: Scarabaeidae: Melolonthinae), all new species, are described from Yuma County, Arizona, USA, and Baja California Sur, Baja California (Norte), and Sonora, Mexico, respectively. Habitus of the four new species is illustrated, and an updated key to the described species in the genus is provided. Distribution and variation of Acoma glabrata Cazier are also discussed

A revision of the genus Gymnetina Casey, 1915 (Coleoptera: Scarabaeidae: Cetoniinae: Gymnetini)

The genus Gymnetina Casey (Coleoptera: Scarabaeidae: Cetoniinae: Gymnetini) is redescribed and revised. Three new species and one new subspecies are described: G. borealis Warner and Ratcliffe, G. grossepunctata Ratcliffe and Warner, G. howdeni Warner and Ratcliffe, and G. cretacea sundbergi Warner and Ratcliffe. Gymnetina salicis (Bates), new status, is removed from synonymy with G. cretacea (LeConte), and G. alboscripta (Janson) is transferred from Gymnetis MacLeay to Gymnetina becoming Gymnetina alboscripta (Janson), new combination. Redescriptions of previously known species, a key for identification, and illustrations of the six species are provided. A brief biogeographical analysis suggests that ancestral taxa dispersed northwards from Guatemala and Mexico to the southwestern United States

Four new Aphodius Illiger from pocket gopher burrows in Arizona, Utah, Kansas and Nebraska (Coleoptera: Scarabaeidae: Aphodiinae)

We describe four new species of winter-active Aphodius (sensu lato) from pocket gopher burrows in Arizona, Utah, Kansas, and Nebraska: A. cacabatus, A. paulseni, A. skillmani, and A. utopensis. Diagnostic characters of all four species are illustrated

Four new species of \u3ci\u3eAcoma\u3c/i\u3e Casey, with a key to species in the genus (Coleoptera: Scarabaeidae: Melolonthinae)

Acoma howdenorum, Acoma westcotti, Acoma quadrilaminata, and Acoma cimarron (Coleoptera: Scarabaeidae: Melolonthinae), all new species, are described from Yuma County, Arizona, USA, and Baja California Sur, Baja California (Norte), and Sonora, Mexico, respectively. Habitus of the four new species is illustrated, and an updated key to the described species in the genus is provided. Distribution and variation of Acoma glabrata Cazier are also discussed

A new \u3ci\u3ePhyllophaga\u3c/i\u3e (\u3ci\u3eListrochelus\u3e/i\u3e) timida group species from Baja California Sur (Coleoptera: Scarabaeidae: Melolonthinae)

Phyllophaga (Listrochelus) baja, new species (Coleoptera: Scarabaeidae: Melolonthinae), is de­scribed and illustrated. Its relationship to other species in the “timida group” is discussed. Morón (2002) reviewed the Phyllophaga Harris (Listrochelus Blanchard) species near P. timida (Horn) and included a key to the eight known species of the “timida group.” Many species in this group are difficult to dis­tinguish from one another via external characters; however, the male genital shape is diagnostic for each. Here I describe a new species from Baja California Sur, Mexico, that falls within that group

Two new scarab beetles from the southwestern USA (Coleoptera: Scarabaeidae: Melolonthinae and Aphodiinae)

Phyllophaga (Listrochelus) benwarneri new species and Cinacanthus cunninghami new species (Coleoptera: Scarabaeidae) are described from dune systems in northern Arizona and extreme southern Nevada, USA. Habitus and diagnostic characters of these species are illustrated, and couplets from the respective, most recent (sub)generic keys are modified to incorporate the new species. Available habits and habitat information for each species, and a discussion of the Phyllophaga “senex complex” of species are provided. This work describes two new scarab beetles from the Southwestern USA, which are apparently restricted to dune systems in northern Arizona to extreme southern Nevada: one, an arenophilic Cinacanthus Schmidt species from dunes near the town of Moenkopi, Arizona, and the other, a flightless Phyllophaga Harris (Listrochelus Blanchard) “senex complex” species from unconsolidated dunes next to the town of Beaverdam, Arizona, and nearby dunes in Nevada. Both localities are known for having several precinctive species, including other flightless Scarabaeidae

Review of The Scarab Beetles of Nebraska by Brett C. Ratcliffe

Of the few regional faunal surveys of Scarabaeidae available, The Scarab Beetles of Nebraska provides by far the most comprehensive treatise to date of any area in the Western Hemisphere. It not only serves as a manual for identification of all adult Nebraskan Scarabaeidae, but also includes available information on larvae and natural history for each species as well. The book is lavishly illustrated with adult habitus drawings of most species, supplemented by line drawings of larval and adult key characters. Illustrator Mark Marcuson\u27s color plates are worthy of framing, and congratulations go to the printers for their reproduction of Marcuson\u27s exquisite illustration of a flying Euphoria fulgida (Fab.) on the front cover. The book begins with an overview of the geography, climate, and vegetative zones of Nebraska, complete with climatological and floral maps, and photographs of the major habitat types found in the state. This is followed by a brief review of Nebraskan biogeography and general scarab morphology, biology, and subfamilial taxonomy

Review of The Scarab Beetles of Nebraska by Brett C. Ratcliffe

Of the few regional faunal surveys of Scarabaeidae available, The Scarab Beetles of Nebraska provides by far the most comprehensive treatise to date of any area in the Western Hemisphere. It not only serves as a manual for identification of all adult Nebraskan Scarabaeidae, but also includes available information on larvae and natural history for each species as well. The book is lavishly illustrated with adult habitus drawings of most species, supplemented by line drawings of larval and adult key characters. Illustrator Mark Marcuson\u27s color plates are worthy of framing, and congratulations go to the printers for their reproduction of Marcuson\u27s exquisite illustration of a flying Euphoria fulgida (Fab.) on the front cover. The book begins with an overview of the geography, climate, and vegetative zones of Nebraska, complete with climatological and floral maps, and photographs of the major habitat types found in the state. This is followed by a brief review of Nebraskan biogeography and general scarab morphology, biology, and subfamilial taxonomy

Review of the genus Orizabus Fairmaire in the United States of America (Coleoptera: Scarabaeidae: Dynastinae)

The Orizabus Fairmaire (Coleoptera: Scarabaeidae: Dynastinae: Pentodini) of the USA are reviewed. Orizabus pinalicus new species and O. mcclevei new species are described. Lectotypes are here designated for eight species names: Bothynus pyriformis LeConte, Pseudaphonus lucidus Casey, Orizabus snowii Horn, Orizabus cultripes Fairmaire, Orizabus isodonoides Fairmaire, Orizabus sallei Fairmaire, Orizabus fontinalis Casey, and Orizabus ponderosus Casey. Illustrations of diagnostic characters and a key to the five included species are presented. The Mexican species O. isodonoides and O. rubricollis Prell are also illustrated for comparison to the new species

Four new species of \u3ci\u3eAcoma\u3c/i\u3e Casey, with a key to species in the genus (Coleoptera: Scarabaeidae: Melolonthinae)

Acoma howdenorum, Acoma westcotti, Acoma quadrilaminata, and Acoma cimarron (Coleoptera: Scarabaeidae: Melolonthinae), all new species, are described from Yuma County, Arizona, USA, and Baja California Sur, Baja California (Norte), and Sonora, Mexico, respectively. Habitus of the four new species is illustrated, and an updated key to the described species in the genus is provided. Distribution and variation of Acoma glabrata Cazier are also discussed