Supplementary material 3 from: Onuferko TM (2018) A revision of the cleptoparasitic bee genus Epeolus Latreille for Nearctic species, north of Mexico (Hymenoptera, Apidae). ZooKeys 755: 1-185. https://doi.org/10.3897/zookeys.755.23939

Morphological key
: Explanation note: Modifications to the key to species of Epeolus in Canada of Onuferko (2017) to include E. gibbsi, which has been discovered since from a specimen collected in Manitoba, and E. inornatus, which might occur in the country given its presence in New England. The modified key picks up from the second half of couplet 3 in the original key, and unless otherwise stated cites figures published in the present article.