REMARKS ON THE COLEOPTERA. 239 



^'lacustris. Orthoperus. 



punetum. flavidus. 



%rnatus. Corylophus. 



lugubris. 



Plate 8th represents twelve new species of the Coleoptera, de- 

 scribed in the preceding Catalogue. 



On glancing over the catalogue which is just ended, the entomolo- 

 gist cannot fail to be struck with two very remarkable characters dis- 

 played by the insect fauna of these northern regions. First, the entire 

 absence of all those groups which are peculiar to the American 

 continent. Thus, there is no Dicaelus, no Pasimachus among the 

 Carabica ; the Brachelytra are represented only by forms common 

 to both continents. Among the Buprestidse is no Brachys ; in the 

 Scarabseidas, the American groups (except Dichelonycha) are com- 

 pletely unrepresented ; in brief, there is scarcely a genus enumerated 

 which has not its representative in the Old World. The few new 

 genera which I have ventured to estabHsh, are not to be regarded as 

 exceptions, they are all closely allied to European forms, and by no 

 means members of groups exclusively American. 



Secondly, the deficiency caused by the disappearance of charac- 

 teristic forms, is obviated by a large increase of the members of 

 genera feebly represented in the more temperaite regions, and also 

 by the introduction of many genera heretofore regarded as confin- 

 ed to the northern part of Europe and Asia. Among these latter 

 are many species which can be distinguished from their foreign 



*' S. lacustris. — Breviter ovalis, convexus, punctatus, niger, mesosterno lato fere 

 truncato, abdominis laminis integris, basi punctatis, ad marginem segmenti 1™' fere 

 extendentibus. Long. -OD. $ articulo ultimo abdominis profunde triangulariter im- 

 presso ; basi minus dense punctata ; pedibus vcl rufis, vel piceis, rufo-marginatis. 



9 abdomine integro, eequaliter dense punctato, antennis pedibusque nigris, posticis 

 nonnunqwam rufis. 



*2 S. ornatus. — Ellipticus, convexus dense subtiliter punctatus, niger elytris utrinque 

 macula magna obliqua ante medium, alteraque magna orbiculata pone medium la;te 

 rufa, antennarum basi tibiis tarsisque fusco-rufis, abdominis laminis extrorsum omnino 

 obliteratis, mesosterno lato, parum emarginato. Long. '08. 

 16* 



