562 PROCEEDINGS OF THE ACADEMY OF [July, NOTES ON ORTHOPTERA FROM ARIZONA, NEW MEXICO AND COLORADO. BY JAMES A. G. REHN. The specimens mentioned in the following pages are almost all con-tained in the collection of the Academy, and chiefly represent collec-tions made in the summer of 1902 in central Arizona, northern New Mexico and central Colorado by C. F. Oslar, and in the summer of 1903 by C. R. Biederman, at Florence, Pinal county, Arizona. A few specimens from Yuma county, Arizona, belonging to the Hebard Collection, have also been studied in this connection. Family PORFICULIDiE. Labia melanoholica Scudder. Florence, Pinal county, Arizona. (C. R. Biederman.) Seven speci-mens of both sexes. This species, described from either Waco or near Austin, Texas, has apparently been imrecognized since the original description until the capture of the above-recorded individuals. Family BLATTID^ Periplaneta americana (Linnseus). Florence, Pinal county, Arizona. (C. R. Biederman.) Numerous individuals. Family MANTIDJE. Litaneutria minor (Scudder). Florence, Pinal county, Arizona. July 26, September 20 and Octo-ber 9, 1903. (C. R. Biederman.) Three males, three females. Two of the females show decided traces of a rich vermilion coloration, which apparently suffused the entire abdomen, thorax and limbs. Stagmomantis Carolina (Linnaus). Florence, Pinal county, Arizona. July 13, 1903. (C. R. Bieder-man.) Two males, stagmomantis limbata (Hahn). Florence, Pinal county, Arizona. July 26, August 10 and September 4, 1903. (C. R. Biederman.) One adult and two immature females.