March. 1919] Davis: Cicadas of the Genus Cicada. 76 



In addition to the type and allotype, ten males and three females 

 were collected by Mr. Coquillett in Los Angeles County, California, 

 in July. In the collection of Dr. E. D. Ball there is a female col- 

 lected by him at Cabazon, Calif., June 20, 1909. 



This species is not quite as contrastingly colored as in varicgata; 

 the membranes at the base of the wings are not so deeply orange in 

 color, being more yellowish and gray. 



Cacama dissimilis (Distant). 



18S1. Cicada dissimilis Distant, Biol. Centr.-Am., Homop. i, p. lo. 



Three males and one female identified as this species and from the 

 collection of the University of Nebraska, have been examined. They 

 are labeled Sonora, Mex., Eisen Collector. In the Uhler collection, 

 U. S. National Museum, is the male already mentioned from " Camp 

 Grant, Ariz. (Palmer), Palmer's Assorting, No. 1043," which has 

 been compared with one of the males from Sonora, Mexico. All of 

 these specimens have the rostrum reaching to about the middle of the 

 posterior coxae; first and second transverse veins of the fore wings 

 are " scarcely infuscated " as stated in the original description. The 

 original description further states that the basal area is " only slightly 

 ochraceous and opaque," which is also true of the specimens men- 

 tioned above. 



Cacama carbonaria new species. 



Type male, in Davis collection, and presented to the writer by Dr. E. D. 

 Ball, who states that it came from near Alexico City, Mexico. It bears the 

 number " 337." 



This is a very black species and resembles Cacama vaivata in size and 

 color. 



Head black with a brown spot above each antenna, one each side on the 

 hind margin near the posterior ocelli, one in front of the median ocellus, and 

 a line on the front in the region of the transverse rugae. The brown rostrum 

 is long and extends to the posterior coxse, but hardly beyond them. The face 

 is black with white hairs ; a pale stripe follows the sides of the transverse 

 rugae, and a second one leads from the base of the rostrum toward each eye. 

 The pronotum is black and pubescent, as in valvata; on the hind margin there 

 is an irregular brown spot each side that extends nearly to the posterior 

 angles. Mesonotum black, slightly lighter near the base of the wings. The 

 X has the fore limbs brown, each one bearing a black spot ; the hind limbs are 

 black. Tergum black, including the exposed part of the- first segment, which 

 is light colored and pruinose in valvata. On each side there is a pruinose 

 spot, which covers the lower part of the tympanum and extends to the fourth 



