Cyclocephalini
Guides
Cyclocephala aravaipensis
Cyclocephala aravaipensis is a species of scarab beetle in the subfamily Dynastinae, first described by Brett Ratcliffe in 1992. It belongs to the masked chafer genus Cyclocephala, a group of beetles whose larvae are commonly known as "white grubs" and are significant pests of turfgrass. The species epithet "aravaipensis" refers to the Aravaipa region in Arizona, indicating its known geographic association. Like other members of its genus, adults are small brown beetles with a distinctive dark facial marking, while larvae are cream-colored, C-shaped grubs that feed on plant roots.
Cyclocephala longula
Cyclocephala longula is a rhinoceros beetle in the family Scarabaeidae, subfamily Dynastinae. It is a member of the masked chafer group, characterized by adults with a distinctive dark facial marking. The species is native to western North America, ranging from Canada through the western United States into northern Mexico. Like other Cyclocephala species, the larvae are white grubs that feed on plant roots, though specific life history details for this species remain poorly documented.
Cyclocephala pasadenae
Southwestern Masked Chafer, Pasadena Masked Chafer
Cyclocephala pasadenae, commonly known as the southwestern masked chafer or Pasadena masked chafer, is a species of rhinoceros beetle in the family Scarabaeidae. Native to southwestern North America, it is one of several masked chafer species whose larvae are significant pests of turfgrass. The species is tan or auburn in color, approximately 13 mm in length, with some patterning on the elytra. Along with its congener Cyclocephala hirta, it is locally abundant in the Los Angeles basin.
Cyclocephala robusta
Cyclocephala robusta is a species of masked chafer beetle in the family Scarabaeidae, first described by John Lawrence LeConte in 1863. It belongs to the subfamily Dynastinae, though unlike many members of this group it lacks the large horns characteristic of the subfamily. The species is native to the south-central and southeastern United States. Like other Cyclocephala species, it likely has a life cycle involving root-feeding larval stages and adult beetles that do not feed on plants.
Dyscinetus
Rice Beetles
Dyscinetus is a genus of scarab beetles in the tribe Cyclocephalini, commonly known as rice beetles. The genus contains at least 24 described species distributed across the Nearctic and Neotropical regions. Larval stages have been described for some species, including D. dubius, but detailed biological information remains limited for most taxa.
Dyscinetus picipes
Dyscinetus picipes is a species of rhinoceros beetle in the family Scarabaeidae, subfamily Dynastinae. It belongs to the tribe Cyclocephalini, a group of scarab beetles commonly known as rhinoceros beetles. The species has been recorded across the Nearctic and Neotropical regions, with distribution spanning the south-central and southwestern United States, Mexico, and various Caribbean islands. Available information on this species is limited, with few detailed biological studies published.