March, I9I5-] DaVIS : NOTES ON CiCADAS. 7 



The insect under consideration has often been identified as Cicada 

 bicosta Walker, which was also described without locality. Distant, 

 however, says this occurs in Mexico and Costa Rica, and in Biologia 

 Centrali-Americana gives a figure of the insect on Tab. 3. This 

 shows a smaller species than the one under consideration, with the 

 hind borders of the abdominal segments ferruginous. Walker's 

 original description of Cicada bicosta gives the length of body as 16 

 lines, and an expanse of wings of 48 lines, measurements too small 

 for rcsonans. He also says that the hind borders of the abdominal 

 segments are ferruginous, " middle-chest adorned with four black 

 obconical stripes," instead of six as in rcsonans. and the '' hind flaps " 

 of the wings " at the base and fore-flaps brown," instead of " gray 

 with a buff tinge." 



I mav add to the description of what I take to be rcsonans, that in 

 the male the supra-anal plate is broad and ends in three points, as in 

 aulctcs and resJi : the uncus when viewed in profile is broad at the tip 

 and shaped somewhat like a horse's hoof ; when viewed from the back 

 or at full face, the extremity is broad and truncated and not notched. 

 In some specimens it is very slightly sinuated. 



In the author's collection there are twenty specimens that are 

 covered very well both as to size and markings by Walker's descrip- 

 tion of rcsonans. and they can bear that name until a better one is 

 found. 



Southern Pines, N. C, 3 males. 6 females; July, August and Sep- 

 tember (A. H. Manee). 



Spring Creek, Decatur Co., Ga., July 23, 191 1, female (J. C 

 Bradley). 



Ormond, Volusia Co., Fla., 2 females (Mrs. Annie T. Slosson). 



La Grange, Brevard Co.. Fla., 2 males, 6 females, July, August, 

 September and October (Davis and Chaudoin). 



Gulf Port, Hillsboro Co., Fla., 2 males (A. G. Reynolds). 



Mobile, Alabama, i female (H. P. Loding). 



In the collection of the Museum of Comparative Zoology there is 

 a female from Port Royal, S. C. (Fowler), and a female, here referred 

 to this species, from Kansas. 



