''Cyclocephala'' is a genus of scarab beetles from the subfamily

Dynastinae Dynastinae or rhinoceros beetles are a subfamily of the scarabaeidae, scarab beetle family (biology), family (Scarabaeidae). Other common names – some for particular groups of rhinoceros beetles – include Hercules beetles, unicorn be ...

(

Coleoptera Beetles are insects that form the Taxonomic rank, order Coleoptera (), in the superorder Holometabola. Their front pair of wings are hardened into wing-cases, elytra, distinguishing them from most other insects. The Coleoptera, with about 40 ...

Scarabaeidae The family Scarabaeidae, as currently defined, consists of over 35,000 species of beetles worldwide; they are often called scarabs or scarab beetles. The classification of this family has undergone significant change. Several groups formerly tre ...

). Beetles of this genus occur from southeastern

Canada Canada is a country in North America. Its Provinces and territories of Canada, ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, making it the world's List of coun ...

Argentina Argentina, officially the Argentine Republic, is a country in the southern half of South America. It covers an area of , making it the List of South American countries by area, second-largest country in South America after Brazil, the fourt ...

India India, officially the Republic of India, is a country in South Asia. It is the List of countries and dependencies by area, seventh-largest country by area; the List of countries by population (United Nations), most populous country since ...

and the

West Indies The West Indies is an island subregion of the Americas, surrounded by the Atlantic Ocean, North Atlantic Ocean and the Caribbean Sea, which comprises 13 independent island country, island countries and 19 dependent territory, dependencies in thr ...

. Adults of this genus are nocturnal or crepuscular, and are usually attracted to lights.

Taxonomy

It was published by

Pierre François Marie Auguste Dejean Pierre François Marie Auguste Dejean (; 10 August 1780 – 17 March 1845), was a French soldier and entomologist. Dejean described a large number of beetles in a series of catalogues. A soldier of fortune during the Napoleonic Wars, he rose ...

in 1821.''Cyclocephala'' Dejean, 1821. (n.d.). Interim Register of Marine and Nonmarine Genera (IRMNG). Retrieved December 3, 2024, from https://www.irmng.org/aphia.php?p=taxdetails&id=1306255 It is the type genus of the tribe Cyclocephalini.Moore, M. R., Cave, R. D., & Branham, M. A. (2018)
Annotated catalog and bibliography of the cyclocephaline scarab beetles (Coleoptera, Scarabaeidae, Dynastinae, Cyclocephalini).
ZooKeys, (745), 101.

Selected species

This is a large genus and new species continue to be added. *'' Cyclocephala almitana'' *''

Cyclocephala amazona ''Cyclocephala'' is a genus of scarab beetles from the subfamily Dynastinae (Coleoptera, Scarabaeidae). Beetles of this genus occur from southeastern Canada to Argentina, India and the West Indies. Adults of this genus are nocturnal or crepuscu ...

'' *'' Cyclocephala amblyopsis'' *''

Cyclocephala atripes ''Cyclocephala'' is a genus of scarab beetles from the subfamily Dynastinae ( Coleoptera, Scarabaeidae). Beetles of this genus occur from southeastern Canada to Argentina, India and the West Indies The West Indies is an island subregion of ...

'' *''

'' *'' Cyclocephala barroensis'' *''

Cyclocephala brittoni ''Cyclocephala'' is a genus of scarab beetles from the subfamily Dynastinae (Coleoptera, Scarabaeidae). Beetles of this genus occur from southeastern Canada to Argentina, India and the West Indies. Adults of this genus are nocturnal or crepuscu ...

'' *''

Cyclocephala borealis ''Cyclocephala borealis'', the northern masked chafer, is a beetle in the family Scarabaeidae. It is native to North America, where it is considered a crop pest. Distribution This species is native to North America, and specimens have been col ...

'' - Northern masked chafer *''

Cyclocephala carbonaria ''Cyclocephala'' is a genus of scarab beetles from the subfamily Dynastinae ( Coleoptera, Scarabaeidae). Beetles of this genus occur from southeastern Canada to Argentina, India and the West Indies. Adults of this genus are nocturnal or crepus ...

'' *''

Cyclocephala cartwrighti ''Cyclocephala'' is a genus of scarab beetles from the subfamily Dynastinae ( Coleoptera, Scarabaeidae). Beetles of this genus occur from southeastern Canada to Argentina, India and the West Indies. Adults of this genus are nocturnal or crepus ...

'' *''

Cyclocephala castanea ''Cyclocephala castanea'' is a species of small beetle in the family Scarabaeidae which is native to the Amazon basin in South America. This beetle and certain others in the same genus have a commensal relationship with the large water lily ''Vi ...

'' *''

Cyclocephala castaniella ''Cyclocephala'' is a genus of scarab beetles from the subfamily Dynastinae ( Coleoptera, Scarabaeidae). Beetles of this genus occur from southeastern Canada to Argentina, India and the West Indies. Adults of this genus are nocturnal or crepus ...

'' *''

Cyclocephala colasi ''Cyclocephala'' is a genus of scarab beetles from the subfamily Dynastinae ( Coleoptera, Scarabaeidae). Beetles of this genus occur from southeastern Canada to Argentina, India and the West Indies. Adults of this genus are nocturnal or crepus ...

'' *''

Cyclocephala complanata ''Cyclocephala'' is a genus of scarab beetles from the subfamily Dynastinae ( Coleoptera, Scarabaeidae). Beetles of this genus occur from southeastern Canada to Argentina, India and the West Indies. Adults of this genus are nocturnal or crepus ...

'' *''

Cyclocephala concolor ''Cyclocephala'' is a genus of scarab beetles from the subfamily Dynastinae ( Coleoptera, Scarabaeidae). Beetles of this genus occur from southeastern Canada to Argentina, India and the West Indies. Adults of this genus are nocturnal or crepus ...

'' *''

Cyclocephala confusa ''Cyclocephala'' is a genus of scarab beetles from the subfamily Dynastinae (Coleoptera, Scarabaeidae). Beetles of this genus occur from southeastern Canada to Argentina, India and the West Indies. Adults of this genus are nocturnal or crepuscu ...

'' *''

Cyclocephala conspicua ''Cyclocephala'' is a genus of scarab beetles from the subfamily Dynastinae ( Coleoptera, Scarabaeidae). Beetles of this genus occur from southeastern Canada to Argentina, India and the West Indies. Adults of this genus are nocturnal or crepus ...

'' *''

Cyclocephala discicollis ''Cyclocephala'' is a genus of scarab beetles from the subfamily Dynastinae ( Coleoptera, Scarabaeidae). Beetles of this genus occur from southeastern Canada to Argentina, India and the West Indies. Adults of this genus are nocturnal or crepus ...

'' *''

Cyclocephala discolor ''Cyclocephala'' is a genus of scarab beetles from the subfamily Dynastinae (Coleoptera, Scarabaeidae). Beetles of this genus occur from southeastern Canada to Argentina, India and the West Indies. Adults of this genus are nocturnal or crepuscu ...

'' *'' Cyclocephala elegans'' *'' Cyclocephala epistomalis'' *'' Cyclocephala erotylina'' *'' Cyclocephala fasciolata'' *'' Cyclocephala fulgurata'' *''

Cyclocephala gravis ''Cyclocephala'' is a genus of scarab beetles from the subfamily Dynastinae (Coleoptera, Scarabaeidae). Beetles of this genus occur from southeastern Canada to Argentina, India and the West Indies. Adults of this genus are nocturnal or crepuscu ...

'' *'' Cyclocephala gregaria'' *'' Cyclocephala hardyi'' *'' Cyclocephala herteli'' *''

Cyclocephala hirta ''Cyclocephala hirta'' is a species in the family Scarabaeidae ("scarab beetles"), in the order Coleoptera ("beetles"). ''C. hirta'' and cousin ''Cyclocephala pasadenae'' are among the most common "June beetles" found in the Los Angeles Basin. ...

'' - Western masked chafer *'' Cyclocephala howdeni'' *'' Cyclocephala kaszabi'' *''

Cyclocephala krombeini ''Cyclocephala'' is a genus of scarab beetles from the subfamily Dynastinae (Coleoptera, Scarabaeidae). Beetles of this genus occur from southeastern Canada to Argentina, India and the West Indies. Adults of this genus are nocturnal or crepuscu ...

'' *'' Cyclocephala laminata'' *'' Cyclocephala ligyrina'' *'' Cyclocephala lunulata'' *''

Cyclocephala lurida ''Cyclocephala lurida'', the southern masked chafer, is a species of beetle in the family Scarabaeidae which is native to the southeastern United States. It is a brown beetle with a black head, with an adult length of . The adult beetles cause no ...

'' *'' Cyclocephala macrophylla'' *'' Cyclocephala maffafa'' *'' Cyclocephala melanae'' *'' Cyclocephala melanocephala'' *'' Cyclocephala modesta'' *'' Cyclocephala nigerrima'' *'' Cyclocephala nigritarsis'' *'' Cyclocephala nigrobasalis'' *''

Cyclocephala nodanotherwon ''Cyclocephala nodanotherwon'' is a species of rhinoceros beetle in the scarab family. It has only been found in Amazonas, Brazil. Brett C. Ratcliffe described and named the species in 1992. Taxonomic history and etymology Brett C. Ratcliffe, ...

'' *'' Cyclocephala pan'' *'' Cyclocephala pardolocarnoi'' *'' Cyclocephala porioni'' *'' Cyclocephala prolongata'' *'' Cyclocephala puberula'' *'' Cyclocephala pubescens'' *'' Cyclocephala putrida'' *'' Cyclocephala quadripunctata'' *'' Cyclocephala rubescens'' *'' Cyclocephala sanguinicollis'' *''

Cyclocephala santaritae ''Cyclocephala'' is a genus of scarab beetles from the subfamily Dynastinae (Coleoptera, Scarabaeidae). Beetles of this genus occur from southeastern Canada to Argentina, India and the West Indies. Adults of this genus are nocturnal or crepuscu ...

'' *'' Cyclocephala sexpunctata'' *'' Cyclocephala signaticollis'' *''

Cyclocephala sparsa ''Cyclocephala'' is a genus of scarab beetles from the subfamily Dynastinae (Coleoptera, Scarabaeidae). Beetles of this genus occur from southeastern Canada to Argentina, India and the West Indies. Adults of this genus are nocturnal or crepuscu ...

'' *'' Cyclocephala spermophila'' *'' Cyclocephala stictica'' *'' Cyclocephala testacea'' *'' Cyclocephala variabilis'' *''

Cyclocephala weidneri ''Cyclocephala'' is a genus of scarab beetles from the subfamily Dynastinae (Coleoptera, Scarabaeidae). Beetles of this genus occur from southeastern Canada to Argentina, India and the West Indies. Adults of this genus are nocturnal or crepuscu ...

'' *'' Cyclocephala zodion''

Etymology

The generic name ''Cyclocephala'' means "round head".Iowa State University. (n.d.). Genus ''Cyclocephala'' - masked chafers. Bugguide. Retrieved December 3, 2024, from https://bugguide.net/node/view/11449

Ecology

Pollination

Flowers of ''Nymphaea'' subg. ''Hydrocallis'' are pollinated by ''Cyclocephala'' beetles.Maia, A. C. D., de Lima, C. T., Navarro, D. M. D. A. F., Chartier, M., Giulietti, A. M., & Machado, I. C. (2014)
The floral scents of ''Nymphaea'' subg. ''Hydrocallis'' (Nymphaeaceae), the New World night-blooming water lilies, and their relation with putative pollinators.
Phytochemistry, 103, 67-75.M Cramer, J., Meeuse, A. D. J., & Teunissen, P. A. (1975)
A note on the pollination of nocturnally flowering species of ''Nymphaea''.
Acta Botanica Neerlandica, 24(5/6), 489-490. Likewise, flowers of ''Victoria'' are pollinated by ''Cyclocephala''.Seymour, R. S., & Matthews, P. G. (2006)
The role of thermogenesis in the pollination biology of the Amazon waterlily ''Victoria amazonica''.
Annals of Botany, 98(6), 1129-1135.

Predation

Several species of ''Cyclocephala'' serve as hosts for the parasitic larvae of the South American robber fly '' Mallophora ruficauda'', especially ''C. signaticollis.''

Herbivory

The larvae are root feeders.

Taxonomy

Selected species

Etymology

Ecology

Pollination

Predation

Herbivory

See also

References

Further reading