Mr. Fred. Tepper has just sent me for examination a very interesting pair of insects taken on the sea shore of Long Island, which approach so nearly the type of O. chandleriin my colle ction from the mountains of Colorado, that I cannot separate them specilically, although there are certain differences, v'hich I give below. The capture is the more valuable since the species of Oncocnemis, so far as known, inhabit only the mountains of Europe, Siberia, Colorado and California.