Dec, 19 IS-] Girault: New Species of Arrhenophagus. 241 



came from Chetopa, Kansas (D. R. Beardslee) and expands 120 

 millimeters. This is supposed to be not a great many miles from the 

 type locality. Cicada marginata has sometimes a line of pruinose 

 spots on the tergum, but generally these spots are inconspicuous or 

 have been entirely obliterated by age. In specimens of the same size 

 the eyes are much furthr apart in marginata than they are in the 

 allied Cicada dcalbata described in this Journal for September, 1915. 



EXPLANATION OF PLATE XVIIL 



Fig. I. Cicada cultriformis Davis, reduced. 



Fig. 2. Cicada nmrginata Say, reduced. 



Fig. 3. Cicada cultriformis ; genitalia, enlarged. 



Fig. 4. Cicada marginata ; genitalia, enlarged. 



