151 



margins acute, especially in the anterior part, parallel ; anterior margin siib- 

 emarginate; posterior margin sub-angulate. Posterior transverse impression 

 situated behind the middle, and a little less than in P. zimmcnnanni. Sides 

 of the pronotum shining ; a posterior punctate band. Elytra short, reaching 

 the second abdominal segment. Prosternal spine pyramidal. Four anterior 

 femora inflated ; posterior femora scarcely passing the abdomen. 



Dimensions. — Length, 0.64 inch. 



Carolina (Saussure). 



P. nebrasceu!>iis, Thos., Geol. Surv. Terr., 1871, 455. 



Female. — Occiput and head behind the eyes unusually long; upper, con- 

 vex portion of the frontal costa very prominent ; tiie frontal costa suddenly 

 expands in width immediately above the ocellus, and is slightly sulcate from 

 this point to the lower exti'emity near the clypeus ; face slightly oblique, 

 curving under toward the breast; eyes slightly elongate, somewhat oblique, 

 and nearly straight in front. Pronotum sul)-tricariiiate ; median carina dis- 

 tinct ; lateral carinas obtusely rounded, nearly obliterated ; sides parallel ; 

 narrower than the head ; rounded at the apex ; posterior lateral margin with- 

 out any notch or inward curve at the humerus. Elytra ovate-lanceolate, 

 nearly half the length of the abdomen. Abdomen carined ; posterior femora 

 not extending beyond the extremity of the abdomen. 



Color (after immersion in alcohol). — Reddish-brown. Face testaceous- 

 brown ; occiput ])rown, with a yellowish stripe each side ; a glabrous, black 

 spot behind each eye, extending along the side of the pronotum to the poste- 

 rior incision. Disk of the pronotum brown ; a pale-testaceous spot on the 

 sides below the black stripe. Elytra brown and unspotted, though in a few 

 specimens dusky dots can be seen. Posterior tibias rufous. 



Dimensions. — Length, 0.94 inch; elytra, 0.25 inch; hind femora, 50 

 inch ; hind tibite, 0.45 inch. 



Nebraska (Dodge). 



P. iinicolor, sp. nov. 



Female. — Occiput short; vertex rather broad, elongate, channeled, the 

 slightly-elevated margins continuous with the margins of the frontal costa ; 

 frontal costa prominent, slightly sulcate, and somewhat expanding at the ocel- 

 lus ; lateral carinse distinct, Ijut not very prominent; eyes sub-elongate, acu- 



