50 NORTHERN ZOOLOGY. 



(72) 1. * Isopleurus nitidus. Glossy Isopleurus. 



I. (nitidus) piceus, nitidissimus, supra piceo-czneus ; antennis, epipleura, pedibusque, rufo-Jiavis ; elytris striis subpunctatis, apice 

 leevibus. 



Glossy Isopleurus, piceous, very glossy, above bronzed with a tint of piceous ; antenna?, side-cover, and legs, reddish- 

 yellow ; furrows of the elytra slightly punctured, but not at the apex. 



PLATE I, FIG. 6. 



Length of the body 3| lines. 



A single specimen taken in the Rocky Mountains. 



DESCRIPTION. 



Body very glossy, underneath rufo-piceous, above bronzed with a light tint of piceous. Upper- 

 lip rufous ; palpi, antenna? which are slender, side-cover of the elytra and legs reddish-yellow : pro- 

 thorax rather wider than long, punctured posteriorly, basilar impressions double : furrows of the 

 elytra slightly punctured, at the apex impunctured. 9 



Family PATROBID^. Patrobidans. 



XXIV. Genus PATROBUS. Meg. 



I consider the Patrobidam as forming a family distinct from the Pogonidans, 

 though both agree in having only two dilated joints in the hand of the males, be- 

 cause the former have the last joint of the palpi more or less conical and acute ; 

 and in the other they are filiform and truncate. De Jean has formed his first 

 division of his Feronians of these two families, the last of which, the Pogonidans, 

 consists of the modern genera Pogonus, Cardiaderus, Biennis, Epaphius, and Aepus; 



9 The following is a description of the Oriental species : — 



* Isopleurus Mac Leayi. Mac Leay's Isopleurus. 



I. [Mac Leayi J niger, nitidus, supra aneus ; ore, palpis, antennis scapo, pedibusque, rufo-flavis ; elytris apice pallidis, latere 

 externo brevissime pilosis, striatis : striis secundo, tertio, et septimo foveolis octo impressis. 



Mac Leay's Isopleurus, black, glossy, above bronzed; mouth, palpi, scape of the antenna; and legs reddish-yellow ; elytra 

 pale at the tip ; at the lateral margin hairy with very short hairs ; lightly furrowed ; second, third, and seventh 

 furrows with eight punctiform impressions. 



