Metasoma (in dorsal view) dampened with water to show differences in integument coloration between T1 of male A E. nebulosus paratype, which is entirely black, and B E. novomexicanus, which is red beneath the apical fascia. Scale bars 2 mm. Note that lightly wetting the terga with ethanol allows for this feature to be seen without having to remove the tomentum.

 
 
  Part of: 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