Since the publication of my synopsis of Lampyridæ in 1851 (Proc. Acad. Nat. Sc. Phila, 1851, 331), but few species of the family have been described in this country, and no very important improvement has been made in their classification ; about the same time I published in the Journal of the same Society (New Ser., i., 73) a synopsis of Lycidæ, one of the sub-families of Lampyridæ.

I have recently been favored by Mr. Tepper and Mr. Graef with the sight of some of Mr. Morrison's types of Noctuidæ. A few of the specimens are in poor condition, too poor, I think, to have allowed them to serve as types. Others are in good order, and those I have here noted are quite easily recognizable. It will be thought extraordinary, from the determinations, that Mr. Morrison should have allowed himself to criticize any one for overlooking structural features in this group, or for re-describing species.