364 TERTIARY INSECTS OF NOKTH AMEKICA. 



1. Carmelus gravatus. 



PI. 24, Fig. 10. 



Body ver)'- regularly oval, the hinder extremity the broader. Head 

 triangularly but rather broadly produced in front of the eyes ; first joint of 

 antennte a little shorter than the head, second about two and a half times 

 as long as the first, the succeeding together as long as the second. Thorax 

 uniform fuscous, darker or lighter in tone, the surface smooth, the base 

 about two and a half times broader than the apex, the apex roundly and 

 weakly emarginate, the base gently and regularly convex, the sides oblique 

 and straight. Scutellum dark, tlie lateral edges transversely pectinate. 

 Hemelytra uniformly dusky except for a deeper tint at the outer extremi- 

 ties of the clavus and cuneus. 



Length, S""™ ; breadth, 2.25""°'. 



Florissant. Eight specimens, Nos. 3669, 5300, 6220, 10418, 11230, 

 12457, 12475, 14208. 



2. Carmelus sepositus. 



PI. M, Fig. 6. 



Body ovate, larger at the anterior than at the posterior end or of equal 

 size. Head scarcely advanced in front of the eyes, broadly rounded ; first 

 joint of antennae about as long as the head, the second about two and a 

 half times longer than the first, the succeeding together as long as the 

 second. Thorax uniformly dark, the surface smooth, the base two and a 

 half times as broad as the apex, the apex gently, regularly, and roundly 

 emarginate, the base very gently convex, almost transverse, the oblique 

 and narrowing sides distinctly, sometimes considerably, convex, giving a 

 roundness to the front of the body. Scutellum dark. Hemelytra dark, 

 slightly duskier at the outer extremities of the corium and cuneus, the 

 membrane faintly fuliginous. 



Lengtli, 5 5"™ ; breadth, 2.2'"'". 



Florissant. Three specimens, Nos. 8206, 11017 and 13558, 12103. 



FUSCUS Distant. 



To this genus, founded on a species from Guatemala, I refer with much 

 hesitation a single form from Florissant, wliich bears a close general resem- 

 blance to the species I have placed in Carmelus, but has much shorter and 



