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Rain beetle
| Rain beetles Temporal range:
| |
|---|---|
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| Pleocoma | |
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Coleoptera |
| Suborder: | Polyphaga |
| Infraorder: | Scarabaeiformia |
| Superfamily: | Scarabaeoidea |
| Family: | Pleocomidae LeConte, 1861 |
| Genera | |
| |
The rain beetles are a group of beetles whose extant species are found only in the far west of North America.[1] They spend most of their lives underground, emerging in response to rain or snow, thus the common name. Formerly classified in the Scarabaeidae (and later the Geotrupidae), they are currently assigned to their own family Pleocomidae, considered the sister group to all the remaining families of Scarabaeoidea. The family contains a single extant genus, Pleocoma, and two extinct genera, Cretocoma, described in 2002 from Late Cretaceous deposits in Mongolia,[2] and Proteroscarabeus of Late Cretaceous China.[3]
- ^ Hovore, Frank T. "Generic Guide to New World Scarab Beetles". unsm-ento.unl.edu. University of Nebraska State Museum - Division of Entomology. Retrieved 14 December 2020.
- ^ Frank-Thorsten Krell. "Catalogue of fossil Scarabaeoidea (Coleoptera: Polyphaga) of the Mesozoic and Tertiary" (PDF). Natural History Museum. Archived from the original (PDF) on July 20, 2011. Retrieved March 7, 2011.
- ^ Krell, Frank-Thorsten. "The fossil record of Mesozoic and Tertiary Scarabaeoidea (Coleoptera: Polyphaga)." Invertebrate Systematics 14.6 (2000): 871-905.
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