Ephelinus
Cockerell, 1906
Species Guides
2Ephelinus is a of rove beetles (Staphylinidae) in the Omaliinae, described by Cockerell in 1906. The genus belongs to the tribe Coryphiini and is characterized by small body size and association with coastal or intertidal . in this genus are poorly documented, with limited ecological and behavioral information available.
Pronunciation
How to pronounce Ephelinus: //ɛˈfɛlɪnəs//
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Identification
Ephelinus are distinguished from other Omaliinae by their small size, compact body form, and reduced or modified wing structures. The genus can be separated from closely related Coryphiini genera by subtle differences in antennal segmentation and the shape of the pronotum, though precise identification requires examination of male genitalia.
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Habitat
Coastal environments, particularly intertidal zones and rocky shorelines. have been recorded from debris and organic matter accumulated in splash zones and upper littoral areas.
Distribution
Known from coastal regions of western North America, with records from California and the Pacific Northwest. The appears to have a restricted distribution centered on the eastern Pacific coastline.
Ecological Role
Presumed to function as scavengers in coastal detritus , contributing to decomposition of organic material in intertidal environments.
Similar Taxa
- CoryphiumShares tribe Coryphiini and similar coastal preference; distinguished by more elongate body form and different antennal club structure.
- Omaliinae (other genera)Many Omaliinae occupy similar ; Ephelinus is separated by its small size and specific pronotal and elytral proportions.
More Details
Taxonomic note
The Ephelinus has received limited taxonomic attention since its description. Only a handful of have been described, and the group would benefit from modern revisionary work incorporating molecular data.