Plebeius may refer to:
*The gossamer-winged butterfly genus ''
Plebejus
''Plebejus'' is a genus of butterflies in the family Lycaenidae.
Its species are found in the Palearctic and Nearctic realms.
Taxonomy
As a result of studies of molecular phylogenetics, numerous species that were included in ''Plebejus'' by som ...
''
*A member of the
Plebs
In ancient Rome, the plebeians (also called plebs) were the general body of free Roman citizenship, Roman citizens who were not Patrician (ancient Rome), patricians, as determined by the capite censi, census, or in other words "commoners". Both ...
.
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