March, 191 5.] 



Van Duzee: West Coast Cicadid^. 



21 



Fore femora all black except the distal tips which are orange; middle 

 and hind femora black except the orange-colored distal tips and inner 

 surface. Rostrum black, orange at base; head black beneath, except 

 the small orange spots about each antenna. 



The type is in the collection of the Brooklyn Museum of Arts and 

 Sciences and is the only one I have seen. It was collected in 1904 by 

 Messrs. Doll and Engelhardt on sage brush. Okanagana fratercula 

 seems to be a " little brother" to O. Schaefferi, and perhaps bears 

 about the same relationship to it as does Tibicina cassinii to T. 

 septemdecini in the eastern states. 



Explanation of Plate 3. 



A PRELIMINARY REVIEW OF THE WEST COAST 



CICADID^. 



By E. p. Van Duzee, 

 Berkeley, Calif. 



The following key and the appended notes include all of the 

 species of the Cicadid?e known to me to occur in California, Oregon 

 and Washington. Thirty-four species or named varieties are recorded 

 from these states and two from farther east are included to complete 

 the review of the distinctively western genera, Okanagana and 

 Cacama. Structural characters are very few in some of the genera, 

 notably Okanagana, and I have been obliged to fall back upon color 

 characters in the preparation of the key. The color and markings 

 while variable in extent are quite constant in their general facies for 

 each species. So far as I have collected them I have found that most 



