1 1 I;MI PTERA— HETRRX )PTBKA— LYG.EII)/E. 393 



ill advance of the anteniifv ; eyes moderately large, situated just in advance 

 of the base ; antennae as long as the head and thorax together, the basal 

 joint clearly surpassing the front, the subsequent joints subequal, the 

 second not longer than the others, slender, the fourth incrassate through- 

 out, but largest in the middle, where it is twice as broad as the middle of 

 the second joint. Thorax longer than broad, the posterior about two- 

 thirds as long as the anterior lobe, of equal length throughout, with straight 

 and parallel sides, the anterior lobe tapering from base to apex with oblique 

 straight sides : posterior margin of the thorax truncate, anterior scarcelv 

 emarginate. Legs moderately stout, middle femora not more than two- 

 thirds as long as the breadth of the body at their insertion. Gorium of 

 hemelytra reaching nearly or quite to the middle of the apical half of the 

 abdomen. Abdomen broad ovate. 



Two species are known, both of which occur only at Florissant. 



Table of the species of Procoria. 



Third joiut of anteun.T of nearly efiiial width throughout ; femora relatively slender. 



1. P. sanctdjohumiin. 

 Third joint of antenna; considerably enlarged apically ; femora relatively stout 2. P. bechleri. 



1. Procoris sanct^johannis. 



Whole body uniform black or blackish fuscous ; antenna? of the 

 same color as the head or perhaps not so dark, but in any case much infiis- 

 cated, the third joint of nearly equal width throughout, scarcely enlarged at 

 the apex. Head smooth or perhaps faintly and very finely punctate. 

 Thorax and scutellum coarsely and rather distantly punctate, the puncta' 

 on the hemelytra arranged linearly along the course of the veins. Femora 

 only moderately stout, fully three times as long as broad. Abdomen rather 

 full, with ampliated sides. 



Length, 6. l""" ; antennae, 2.25""" ; breadth of thorax, 1.85'"™ ; abdomen, 

 2.5""". 



The name of the species is given in honor of Mr. Orestes St. John, 

 geologist of the Hayden Survey, a pioneer of nuich work in the West. 



Florissant. Four specimens, Nos. 3556, 4808, 7688, 10560. 



2. Procoris bechleri. 



PI. 27, Fig. 4. 



Head faintly and rather coarsely punctate, and, like the whole body, 

 black or blackish brown, the antennae a little lighter colored, the third joint 



