(67) 
with no inward curve 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, spatu'late, 
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 ; posterior 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. 
Color. Head and thorax 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 the posterior margin of the 
pronotum. Posterior femora bright pea-green, unspotted, except the 
tip, which is black ; tibiae greenish, with the spines black. 
Male. Much 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 single 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. 
Dimensions. — Female, length .90 inch ; male, length .65 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 Pez. alba , Hodge, the former of Maine, the latter of Nebraska. 
35- Pez. SCudderi, Uhler, Proc. Ent. Soc. Phila., II, 555. 
This is given on the authority of Mr. Uhler, who states that he re- 
ceived it from 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 
