March, 1915.] Davis: Xew Species of Cicadas. 19 



the head of the former measured across the eyes is 4.5 mm., and that 

 of the latter is 5.5 mm. 



Okanagana schaefferi new species. 



Type, male, Bucksk \'alley, Iron Co., Utah. 



A large insect with very prominent front, larger than either 0. 

 rimosa or O. z'andn::cci, but with the wings shaped as in those species. 

 The colors and markings resemble those of vandnzcci. 



Length 28 mm.; to the tip of the wings 38 mm.; fore wing 12 by 

 32 mm. Head not quite as broad as the front margin of the prono- 

 tnm; front strongly produced, and the upper surface with a not very 

 sharply defined broad elevated margin ; front sulcus narrow. Prono- 

 tum 5 by II mm.; the humeral angles rounded and the sides evenly 

 narrowed toward the anterior angles which are rounded. Opercula 

 oblique with the ends not much turned inward. Last ventral seg- 

 ment with the base about as long as the sides which gradually con- 

 verge to the truncated end which is slightly sinuated. Valve 4 mm. 

 in length. Uncus when viewed in profile short, stout not hooked; 

 when viewed from above, broad, widest in the middle, with the end 

 truncate. Wings rather broad, transparent, and with the venation 

 as in riuiosa and z-aiidiiccci. Costa of the fore wings yellowish. 

 All of the wings fuscous and orange at the base; flaps orange, those 

 of the hind wings a little fuscous. Head above black with a light 

 spot on the edge of each supra-antennal plate. Pronotum black 

 edged all round with orange and about one half of the median groove 

 yellow. Mesonotum black with hind margin irregularly bordered 

 with light orange; X orange, with a black central line and a black 

 band across each anterior ridge followed by orange. Two very 

 small orange spots beyond. A yellow dash near the base of each fore 

 wing. Metanotum with the posterior edge light orange. Dorsum of 

 the abdomen black with all but the basal segment posteriorly edged 

 with orange ; uncus black. Beneath, the valve pale orange ; hind 

 margins of all of the segments orange, except the last which is more 

 than one half pale orange. The opercula black with the hind margins 

 orange. Fore femora all black except the distal tips which are 

 orange. Middle and hind femora black except the orange colored 

 distal tips and inner surface. Rostrum black, orange at base, head 

 black beneath, except the small orange spots about each antenna. 



