June, 1920.] DaVIS : XoRTII AmF.RICAX CiCADAS. 121 



and all of the femora faintly striped. Tibiae darkened at the knees. Uncus 

 when viewed from above long and narrow, riJiinded at the extremity, faintly 

 keeled near the base ; seen in profile sinuate along the lower margin. Last 

 ventral segment of the female allotype has the notch U-shaped, and not 

 broadly V-shaped as in afcria, nor more narrowly V-shaped as in vanduseei. 



Measurements in Millimeters. 



Male Type. Female Allotype. 



Length of body i5o i6 



Width of head across eyes 4-"5 5 



Expanse of fore wings 36 40 



Length of valve 3-5 



Only the type 'and allotype have so far been examined. Though 

 it resembles minor in some features and vanduzcci in others, this is a 

 very distinct species. 



Neoplatypedia new genus. 



In this genus the front wings have seven apical areoles, instead 

 of eight as in Platypcdia, and the costal vein is strongly expanded 

 and bent beyond the middle of the radial cell. When the insect is 

 turned over, the wings, if closed, are seen to cover about the apical 

 third of the abdomen; in Platypcdia the entire under side of the ab- 

 domen is plainly in view. The uncus is remarkably long and up- 

 turned at the extremity. Type Platypcdia aiiipliaia Van Duzee. 



Uncus when viewed from above slipper-shaped, the sides evenly converging to 

 the rather sharp point ; when seen in profile, the point rather suddenly up- 

 turned. Membranes at base of fore wings almost white. Expands 38 to 43 

 millimeters. Occurs in California. ampliata (Van Duzee). 



Uncus when viewed from above suddenly constricted at about one third of the 

 distance from the rather sharp point ; when seen in profile with the point 

 gradually and moderately upturned, but not as much so as in ai)ifliata. 

 Membranes at base of fore wings orange. Expands 40 to 44 millimeters. 

 Occurs in Arizona, Colorado, Utah, California constricta new species. 



Neoplatypedia ampliata (Van Duzee). Plate V, fig. 12. 



19 1 5. Platyf'edia ampliata Van Duzee. Journal X. Y. Entomological So- 

 ciety, XXin, p. 29. 



The original description states that the remarkably broad fore 

 wings are obviously angled beyond the middle of the costal areole, and 

 that the costal nervure is broadly expanded, especially in the male, 

 reaching a width of nearly one millimeter. Body clothed with long 

 blackish hairs which become gray beneath and on either side of the 

 mesonotal X- Front strongly produced; last ventral segment of the 



