The following species of Acridiidæ were recently purchased by the writer from the collector, Dr. R. E. Kunze, of Phœnix, Arizona. There are thirty-two specimens, representing eleven species, one of which is apparently undescribed, representing a new genus. Several of the species are, for various reasons, quite interesting and all are herein listed. They are as follows:

1.—Hippiscus leprosus, Sauss.

Xanthippus leprosus, Sauss. Prodr. Oedip., 92 (1884).

Hippiscus leprosus, Scudd. Psyche, VI., 334 (1892).

One female; Pinal Mts., Gila Co.; July 24, 1900.

This species was determined by Mr. J. A. G. Rehn, of Philadelphia.