(67) 



with iin inwiiril cuive or notch except the one at the middle of the dor- 

 sum. Elytra minute, not meeting on the back, the space between 

 them being more than the width of one of them : narrow, spatulate, 

 width about one-third the length ; extending over the second abdominal 

 segment ; longitudinal nerves prominent and similar. Abdomen some- 

 what prominent and carinated at the base, but suddenly decreasing in 

 size posteriorly, so that near or a little beyond the middle it becomes 

 cylindrical. Anterior femora slender ; po terior femora about as long 

 as the abdomen : upper carina distinct, and the upper external angle 

 distinct and somewhat sharply defined ; the tibiae distinctly expanding 

 below. Prosternal spine broad at base, transverse, bluntly rounded at 

 the tip. , 



('(ih)i-. Head and tliorax varying in different individuals from dull 

 greenish-white to brown, with a clearly defined shining black line 

 extending, on each side, from the eye to th • posterior margin of the 

 pronotum. Posterior femora bright pea-green, unspotted, except the 

 tip, which is black ; tibiae greenish, with the spines black. 



Mule. iMuch smaller than the female ; eyes very prominent, and so 

 closely approximate above that the portion of the vertex between them 

 is reduced to a mere thread ; the antennae comparatively large and 

 reaching back to about the tip of the second abdominal segment. Tip 

 of the abdomen strongly curved upward : cerci somewhat elon- 

 gate, slender, and narrowed in the middle ; tip of the last ventral seg 

 ment somewhat conical, entire. Face quite oblique and arcuate. 



Color {of the. siiKjle specimen.') Face and disk of the pronotum dull 

 ash-brown; cheeks and space of the pronotum below the black stripe 

 pale ash-brown or rufous; posterior femora greenish-yellow, deeply 

 tinged with bright-rufous above. 



JJimensions. — Female, length .90 inch : male, length .05 inch 



Two females and one male, taken by Prof. Forbes, of Normal, in 

 September. 



I have given this as a distinct species, but confess I have very little 

 expectation that most of the recently described western species of 

 Pezotettix and Caloptenus will withstand the test of future investiga- 

 tions. It is more than probable that this will prove to be but a variety 

 of Mr Smith's Fez. manca. This species, or variety, as it may prove 

 to be, appears to be an intermediate link between Pez. manca, Sm.. 

 and Fez. alOa, Dodge, the former of Maine, the latter of Nebraska. 



Pez. scudderi, Uhler. Proc. Eut. Soc. Pliila. , ll, 555. 



This is given on the authority of Mr. Uhler, who states that he re- 

 ceived it frorn Rock Island, through Mr. Walsh. I am not acquainted 

 with it, but have before me some specimens received from Prof. Forbes, 

 taken at Normal, which I am inclined to refer to it. They differ from 



