After a comparison of my types with Mr. Walker's, Mr. A. G. Butler writes me that Walshii Edw., as taken by Prof. Snow in Kansas, is the same as Functura of Walker. The form which has been taken about Albany and which is exactly like Unijuga, but differs by the band being a little narrower on hind wings and not quite so continuous, is an unnamed variety of Unijuga. It follows from this that my Arizonœ is certainly not Walshii, as suggested by certain parties. Mr. Neumoegen has received it in quantity from Arizona. The form taken by Belfrage in Texas, and distributed as Walshii, may be the same as Arizonœ, and should be carefully compared with Arizonian specimens.