152 



miiiatc at the apex, i^ronotuiii regulaily angled ; sides parallel ; tricarinate ; 

 cariiite equally distinct ; sides flat, compressed ; the two sides of the disk flat, 

 but slightly ascending to the median carina; posterior sulcus situated behind 

 the middle, distinct; the first and second indistinct; all somewhat distantly 

 separated. Elytra about half as long as the abdome-n, oblong-ovate ; wings 

 minute. Abdomen compressed, pisciform. Posterior femora passing the 

 abdomen slightly. Prosternal spine of moderate length, very broadly trans- 

 verse, the width nearly equaling the length, blunt and rounded at the apex. 



Color (dried after immersion in alcohol). — Reddish-brown throughout, 

 varying slightly in depth of color. Elytra unspotted. The hind femora have 

 the spaces between the ribs of the disk marked with minute, elongate, red 

 spots, which are surrounded by testaceous rings (these can be seen distinctly 

 only with a magnifier). The posterior lobe of the pronotum and a ring 

 round the front sub-margin rather coarsely punctured ; the sides glabrous. 



Dimemions. — Length, 0.88 inch ; elytra, 0.26 inch ; posterior femora, 

 0.55 inch ; posterior tibias, 0.46 inch. 



Jackson County, Illinois (Thomas). 



P. edax, Sauss., Rev. et Mag. de ZooL, 2d ser., XIII (1861), 161. 



Medium size; body elongate, crassate, but not deep; in the female de- 

 pressed. Head broad ; frontal costa flat in the middle, sulcate at the ocellus; 

 eyes large, short, broad, equally convex, sub-reniform, acuminate above, some- 

 what distant. Vertex sub-carinate ; foveola in the female obsolete. Prono- 

 tum with the disk flat ; carinate ; margins acute, straight ; posterior margin 

 obtuse-angled ; posterior sulcus situated in the middle, cutting the median 

 carina; posterior lobe densely and minutely punctate. Prosternal spine large, 

 acute, bent upon the meso-sternum. Elytra grayish-yellow, long as the poste- 

 rior femora. Sub-anal plate of the male tuberculiform ; the disk of the pre- 

 anal segment coarsely punctured ; cerci lamelliform, curved only at the apex. 



Color of the body in dried specimens testaceous, variegated with rosace- 

 ous ; two testaceous fasciae above, (sometimes fuscous, and variegated with 

 divers colors) (?). 



Dimensions. — Length, 1.3 inches. 



Carolina (Saussnre). 



P. scuddei'i, Uhlcr, Proc. Ent. Soc. Phil., II, 555. 



Ferrugineo-fuscous ; form and general appearance of Caloptenus femur- 



