June, 1920.] Davis: Xokth American- Cicadas. Ill 



Oregon. — Dilley, female in tlic collection of the Museum Brooklyn 

 Institute of Arts and Sciences, female in the writer's collection, and 

 a male and female in the collection of H. G. Barhcr. all without date. 

 \\'ilson, June 7. 1915, female (M. M. Rheer). Corvallis, May, 1901, 

 male; May. 1908, female (Elta Baber) ; May 28, Vnale (Mark 

 Wright) ; June 5, 1912, male (L. G. Gentner) ; male without date (W. 

 J. Chamherlin). Mary's Peak, Lincoln Co., May. three males and 

 one female (W. J. Chamherlin). Odell, June 10, 1914, male. In the 

 collection of the Oregon Agricultural College there is a long series 

 of over forty specimens of arcolata which I have been permitted to 

 examine through the courtesy of Prof. A. C. Lovett. Those from 

 Corvallis range in date from April i (1897) to June 16 (1896). 

 There is. however, a single male from Hood River, August 15, 19 13, 

 and another male labeled Philomarth, Sept. 14, 1906 (Schranck). 

 Two females were collected in the Santiam National Forest, April 

 27, 1915, by W. J. Chamherlin. 



Idaho. — Wallace, June 9, 1915, male, two females; ]\Iay 2, 1916, 

 male; 'Sla.y 3. 1916, male and female; May 23, 1916. female; ]\Iay 31, 

 1916, female; June 9, 1916, female; May 8. 1917. male; May 9, 1917, 

 male; May 14, 1917. three females; ]\Iay 18. 1917. male; June 3, 1918, 

 female; June 9, 1918, female; June 18, 1918, male; June 24, 1918, 

 female; April 24. 19 19. male; April 2S, 1919. male; April 30, 1919, 

 male; May 12, 1919, female; May 14, 1919. female; May 16. 1919, 

 male and female; ]\Iay 18, 1919, male; May 25, 1919, female; June i, 

 19 1 9, female; June 22, 1919, two females (Otto Huellemann). This 

 long series of twelve males and nineteen females collected during the 

 past five years by Mr. Huellemann show no variation. Mt. Moscow, 

 female (Frank Magee). ?iIoscow !Mts., July 8, 1898, female, collec- 

 tion Am. Museum of Natural History. Troy. May 31, 1908, two 

 females ( E. T. Cresson, Jr.), collection Academy Natural Sciences, 

 Philadelphia. 



Montana. — Bonner, May 26, 1904. male, collection Brooklyn Insti- 

 tute of Arts and Sciences. Bear Dance. Flat Head Co., June 7. 191 2, 

 male. Four other specimens from Bear Dance, collected June 7, 191 2, 

 and two females from Thompson Falls, Missoula Co., are in the col- 

 lection of the Montana Agrictultural Experiment Station. 



California. — Humboldt Co., May 22. 1911. male (F. W. Xunen- 



