HEMIPTERA— nETEROPTERA— COREID.E. 427 



Table of the species of Bhepocoris. 



Head longer than broad ; hind legs long and slender. 



Larger and stouter species, more than 8™™ long; thorax shorter than the head 1. B. pr(etectus. 



Smaller and slenderer species, less than 8""" long; thoras as long as the head 2. M. macrescens. 



Head broader than long ; hind legs less long. 



Largest species, usually about 8"™ long 3. R. prwvalens. 



Medium sized species, usually about 6™™ long 4. II. propinijuans. 



Smallest species, usually about 4.6°"" long 5. B. minima. 



1. RhEPOCOEIS PR.STECTUS. 



Head one-fourth longer than broad, hardly constricted behind the eyes ; 

 surface rather coarsely granulate with a tendency to a transverse arrange- 

 ment. The thorax considerably shorter than the head and broader than 

 long, the apical margin more than three-fourths as long as the basal margin ; 

 the surface coarsely granulate. Hind legs exceptionally long, the femora 

 being nearly half as long as the body. 



Length of body, 6 6"™; breadth of thorax, 1.4""°; length of hind 

 femora, 3.2°"". 



Florissant. Two specimens, Nos. 9756, 10645. 



2. Rhepocoris macrescens. 



Head subpentagonal, broadest in advance of the middle except for the 

 eyes, from this point tapering gently backward ; the front triangular, rounded ; 

 surface rather finely granulate, the antennae scarcely more than half as long 

 as the body. Thorax as long as the head and slightly broader than long, 

 tapering regularly from base to ajDex, the apical margin being about two- 

 thirds as long as the basal margin ; the surface finely granulate in front, 

 coarsely behind. Whole body blackish, hemelytra blackish fuscous, the 

 membrane infumated with a large triangular pallid patch at the apex of the 

 corium. Legs blackish fuliginous. The hind femora less than half as long 

 as the body. 



Length of body, 8.5""° ; breadth of thorax, 2.5"'"' ; length of hind femora, 

 3.4""". 



Florissant. One specimen. No. 2158. 



3. Rhepocoris pr^sivalens. 



PI. 25, Figs. 4, 6, 7, 9, 10, 11, 14, 16; PI. 26, Fig. 11. 



Head rounded, scarcely longer than broad, uniformly and rather finely 

 granulate, the granulations on the under surface of the head showing a tend- 



