Studies in the Ptinidae, Cioidae and Sphindidae of America This book, "Studies in the Ptinidae, Cioidae and Sphindidae of America", by Thos. L. Casey, is a replication of a book originally published before 1898. It has been restored by human beings, page by page, so that you may enjoy it in a form as close to the original as possible. This book was created using print-on-demand technology. Thank you for supporting classic literature.