In describing C. retecta and C. flebilis, it appears from Mr. Hulst's statements, that I included certain dark shaded specimens, one or more or retecta, under flebilis. Mr. Hulst says:-“The typical specimens in Phila. cover both species.” This may be true, as also that Mr. Strecker figures a dark shaded retecta as flebilis. I have not his work. But there is not doubt in my mind as to what was flebilis, and there is no excuse for Mr. Hulst's renaming my species as luctuosa.