March, 19 16.] DaVIS : CiCADAS FROM THE UNITED StATES. 49 



Garden City, Finney Co., Kans., June, 1895, male and female (H. 

 W. Menke). Collection U. S. Nat. Museum. 



Arizona, male. Uhler collection, U. S. Nat. Museum. 



As has been stated Cicada bifida greatly resembles Cicada town- 

 seiidi which, however, appears to range somewhat further to the 

 south. It may be readily distinguished from that species by being 

 smaller, by the less prominent front ; by having the basal cell of the 

 fore wings less black and the collar or hind margin of the pronotum 

 of a nearly uniform color, that is it has not about the frontal half 

 blackened as in townsendi. The uncus in Cicada bifida is deeply cleft 

 at the tip, and simply rounded in townsendi. Further in townsendi 

 the penis is armed with a chitinous pair of thorns dark in color and 

 bent inward, which are not present in Cicada bifida. 



Cicada castanea new species. 



Type male, Jerome, Arizona, June (Oslar). Davis collection. 



Allotype female, Prescott, Arizona (Oslar). Davis collection. 



The triangularly shaped opercula of this species are proportion- 

 ately much longer than they are in Cicada cinctifcra from the same 

 region, and they are also more rounded at the tips. 



Head with the front ochraceous tinged with black and a small, brighter 

 spot at apex. A broad, irregular black band connects the eyes, behind which, 

 each side, are two ochraceous spots, and an oblong one of the same color is 

 above the base of each antenna. Pronotum castaneous with a central longi- 

 tudinal dark band dilated both anteriorly and posteriorly (in some of the para- 

 types enclosing a castaneous streak) ; the front margin narrowly lined with a 

 streak of a lighter color. The posterior margin or collar clouded with black 

 near the humeral angles, and yellowish on anterior angles, otherwise of the 

 same color as the main portion of the pronotum. Mesonotum shining black 

 with a faint castaneous W-shaped line outlining two obconical spots on the 

 central part of the fore margin ; the sides and the cruciform elevation custaneous 

 with two black depressed dots near the upper extremities of the latter. Tergum 

 castaneous with the tympanal areas lighter and each segment faintly clouded at 

 base ; last segment with a conspicuous pruinose spot each side. Fore wing 

 with the costal margin green to the end of the radial cell, beyond darkened. 

 Subcostal vein dark brown. The marginal cells down to the cubital cell 

 slightly clouded with brown, but each cross vein heavily clouded, also an 

 indication of several small, dark spots along the outer margin. One of the 

 female paratypes constitutes a variety having the fore wings suffused entirely 

 with brown, as well as about two thirds of the area of the hind wings. At 

 base the fore wings are darkened, also a dark spot in each basal cell ; the 



