In reference to my previous paper (page 209), Mr. Louis B. Prout kindly draws my attention to the fact that Duponchel, Lep. Ent., March, 1829, also selects didyma as type of Apamea, Ochs., 1816. While it is gratifying that I had come independently to the same conclusion with regard to this type, I cannot follow Duponchel's selection in other cases. I merely state the fact here, reserving details for a later occasion.

It further appears from Mr. Prout's researches that Curtis, who publishes later than Duponchel, viz., in May, 1829, “chooses chrysographa” as type of Apamea.