AMERICAN COMPONENTS OF THE TENTYRIIN^ 287 



not near the coast, as the species are well known to be very- 

 local in distribution ; this seems to be an additional reason for 

 doubting the authenticity of the cotype referred to by Horn. I 

 am therefore forced to give our species hitherto known as 

 Eiirymeto^on another generic name. 



The case of Emmenastzis Mots., is still more unsatisfactory. 

 The original description is very short, stating that the body is 

 oval and narrowed in front and behind, having the facies of 

 Gnathosia and Zophosi's, — which hardly resemble each other in 

 any way, — and that the last joint of the palpi is elliptical and 

 feebl}'- truncate at tip. It has for its type a species named com- 

 pactus, said to be a native of Kamtschatka, having the size of 

 Gnathosia dc^resst'cornis but stouter, and is therefore a com- 

 paratively large speci&s, probably some lo mm. in length. It 

 is black and opaque, with the elytra striate as in Penthicus and 

 Melanestes, — which is the substance of the entire description. 

 The other species placed in the genus, named i-ugosns, is smaller 

 and is said to be from Sitka. No species of the present tribe 

 is known to me from above the latitude of southern Idaho. 

 Having these facts in mind I am quite unable to comprehend 

 the remark of Dr. Horn on page 269 of his Monograph, that, 

 "while rejecting the typical species to the doubtful list, the 

 genus must be retained, an illustration of the prediction of a 

 genus by an author who at the same time commits a specific 

 blunder in doing it." The latter author assumes moreover that 

 rugostis is the type of the genus, while compactus was evidently 

 the species so intended by Motschulsky. I therefore defin- 

 itely reject the genus Emmcnastiis as a component part of 

 our fauna, although it ma}^ be a valid Asiatic genus belong- 

 ing to another tribe. The genera of Eurymetoponini are nu- 

 merous and those represented in my cabinet may be defined as 

 follows : — 



Anterior tibitE produced externally at tip 3 



Anterior tibiae not externally prolonged at tip 5 



2 — Eyes small, subentire; head without supra-ocular carina, the epi- 

 stoma broadly, sinuously emarginate ; antennae not extending to the 

 base of the prothorax, the joints 4-10 feebly increasing in thickness, 

 the eleventh larger than the tenth, oval; scutellum distinct, quad- 

 rangular; elytra broader than the prothorax; first joint of the 



