psithyrus

noun
psith·​y·​rus | \ ˈsithərəs\

Definition of psithyrus

1 capitalized : a genus of large bees resembling bumblebees but lacking the pollen-collecting apparatus and the worker caste and being parasitic in the nests of bumblebees
2 plural psithyri\ -​ˌrī\ : any bee of the genus Psithyrus

History and Etymology for psithyrus

New Latin, from Greek psithykos whispering, twittering

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