Among a collection of beetles made by the late Dr. F. Stein, of Indianpolis, I found some years ago a specimen marked“platynus, sp? Indiana.— Finding no description fitting it in Dr. Horn's revision of the genus,* I sent it among other specimens for naming to Dr. E. A. Schwarz, of the U.S. Divison of Entomolgy. Under date of January 17, 1899, he wrote me that it was oPlatynus quadrimaculatus, horn; that it “was not represented in the U.S. National Museum collection, and that only a few specimens had ever been captured.”