Journal New York Entomological Society. tVoi. xxv. 



TWO NEW CICADAS FROM LOWER CALIFORNIA, 



MEXICO. 



By Wm. T. Davis, 

 New Brighton, Staten Island, N. Y. 



The descriptions here presented have been made possible through 

 the kindness of Professor Myron H. Swenk, of the University of 

 Nebraska, who has permitted me to examine a number of interesting 

 species from the collection of that institution. 



In the Transactions of the Maryland Academy of Science, 1892, 

 p. 163, Prof. P. R. Uhler described Tibicen hlaisdelli from the vicin- 

 ity of San Diego, California. Distant later placed the species in his 

 genus Okanagana, of which he designated rimosa Say as type. 



In " A Preliminary List of the Hemiptera of San Diego County, 

 California," Transactions of the San Diego Society of Natural History, 

 Vol. 2, p. 47, October, 1914. Mr. E. P. Van Duzee described Okanagana 

 distanti with varieties truncata and pallida as closely related to hlais- 

 delli. The type locality for distanti and varieties is San Diego, Calif., 

 and vicinity. 



In " A Preliminary Review of the West Coast Cicadidse," Journal 

 N. Y. Ento. Society, Vol. XXIII, p. 31, March, 1915, Mr. Van Duzee 

 proposed the genus Clidophlcps to include the known species hlais- 

 delli Uhler, and distanti, the latter being designated as type. In the 

 original description of hlaisdelli in 1892 Uhler pointed out the peculiar 

 form of the radial and adjoining cells and stated that a new genus 

 might be erected, the " elongation and expansion of these cells " sug- 

 gesting a close relation with Platypedia. 



The original description of hlaisdelli contains the following: 

 ". . . the radial cell large, wide, reaching beyond the middle of the 

 wing-cover and its bent apex forming the base of three ulnar cells, 

 the cell below the radial one [median] is narrow throughout one half 

 of its length, and beyond this it is greatly expanded towards its tri- 

 angular tip, the cell next below this [cubital] is shorter, but quite 

 wide, with its inner vein strongly arched, and with a kind of triangu- 

 lar fuscous nodus bounding its outer end." In C. distanti as well as 

 its varieties ". . . the greatly thickened and nodose transverse vein 



