In discovering a North American representative of the European Brassicœ, I proposed for this latter and our Occidentis the generic title Copimamestra, based on the tibial claw. In the Philadelphia List the term Barathra is resuscitated out or Hübner's Verzeichniss, p. 218, for the genus, but incorrectly. Hübner refer two species, Brassicœ and Albicolor, to his genus, and I was free to use for one of them the new term. I need not state that Hübner took no note of the structure of Brassicœ, and that Albicolor differs structurally.