March, 1915] Davis: New Species of Cicadas. 13 



about as prominent. Opercula oblique with the inner, lower angle 

 not much produced. Valve 5 mm. in length. Uncus not hooked at 

 the end, but very slightly narrowed, truncated and the end shallowly 

 notched, thus different in shape from riniosa and No. 19 described 

 in Mr. Van Duzee's paper referred to above. Venation and color of 

 the wings about as in rimosa except that the bright or reddish orange 

 is replaced by duller tints at the base of all of the wings, and the 

 costa is greenish yellow. The dorsum of this species is nearly all 

 black. The supra-antennal plates are touched with orange; the 

 pronotum is narrowly edged with dull orange except on the anterior 

 margin, and a very faint mid-dorsal streak of the same color extends 

 to the outer edge from about its central portion. The mesonotum has 

 the top of the X touched with pale orange and the four spots in front 

 of the X are arranged in a semi-circle. The sides of the mesonotum 

 are ornamented with orange at the base of the wings, two pale spots 

 being particularly conspicuous. The posterior part of the metanotum 

 is edged with orange. The dorsum of the abdomen has the posterior 

 edge of the first and last segments narrowly streaked with greenish 

 orange; the lower edge of the supra-anal plate and the upper edge 

 of the valve are greenish orange ; the uncus is black. The valve is 

 greenish beneath and the lower surface of each abdominal segment is 

 black edged on posterior margin and sides with light orange. The 

 legs are orange streaked and spotted with black about as in rimosa, 

 except that there is more black particularly on the fore femora. 



The shape of the fore wings in mariposa is different from that of 

 any other species of the genus I have seen in that the outer margin is 

 not so evenly curved, but forms more of a straight line to the tip of 

 the wing. 



Okanagana hirsuta new species. 



Type, female, Santa Rosa Island off the coast of southern 

 California. 



A hairy species, with particularly long hairs on under side and on 

 the legs. 



Length 25 mm.; to tip of the wings 37 mm.; fore wings 7 by 31 

 mm. Head nearly as wide as the anterior margin of the pronotum; 

 front about as prominent as in rimosa; median sulcus narrow with 

 parallel sides. Pronotum 4.5 by 10.5 mm., the sides anteriorly not 



