Ceratina dupla, the doubled ceratina, is a species of small carpenter bee in the family Apidae. It is found in the eastern half of North America. It was formerly confused with the species Ceratina floridana and Ceratina mikmaqi, until molecular analyses demonstrated significant genetic differences between the taxa.Sandra Rehan, Cory S. Sheffield (2011) Morphological and molecular delineation of a new species in the Ceratina dupla species-group (Hymenoptera: Apidae: Xylocopinae) of eastern North America. Zootaxa 2873:35-50. DOI: 10.11646/zootaxa.2873.1.3
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