'fllE CLASSIFICATKIN OF HKKTr.KS. 25 



A UESCKTPTIVE CATALOGUE OF TTTE COLEOPTERA 



(Exclusive or thk Hiiynciioi'iioka. I 



KNOWN TO OCCUR IN INDIANA. 



The inserts of tlic Order Coleoptera, sufficiently defined on a 

 preeedinu' paue. are separated into two suborders as follows: 



KEY It) sriiOKDEHS OK fOEEOPTEKA. 



(/. Mciuth imrts iionn.-il. rarely unlit for use. never (U-parling from the 

 ordinary type; palpi always tiexible. maxillary usually four-jointed, 

 labial tliree-jointed ; .gular sutures double, at least before and behind ; 

 prostornal sutures distinct. Sul)()rder I. Coleoptera (genuina). 



(lit. Head more or less prolongod in front to form a beak; palpi usually 

 rigid and not evident: gula riot evident; prosternal sutures wanting. 



Suborder II. Riiynciiophoka. 



On account of a lack of time and space, the Rhynchophora of the 

 State are not treated in the present paper. A large collection of 

 them is, however, at hand, and they will, if circumstances allow, 

 be catalogued and described in a future treatise. 



Suborder I. COLEOPTERA (genuina.) 



This suborder is divided into the following series or groups of 

 families : 



KEY TO series OF COLEOPTERA (geUUiua). 



II. Hind tarsi (except in a few Clavicornia ) with the same number of 

 joints at least as the others. 

 h. Fourth and fifth tarsal joints not united, the fifth, when present, 

 always distinct, 

 c. First three ventral segments united, the first divided by the hind 

 coxal cavities so that the sides are separated from the very 

 small median portion; all the tarsi five-jointed ; antemii^e fili- 

 form or nearly so; hal)its mostly predaceous. 



Series I. Adephaga, p. '2i\. 

 cc. First ventral segment visible for its entire breadth (except in 

 Rhyssodid.e). 

 (/. Antenme with the ternnnal joints not lamellate or leaf-like and 

 capable of se])aration. 

 c. AuteuuiTe clavate or capitate, very rarely serrate; species liv- 

 ing for the most part in decaying animal and vegetable 

 matter. Series II. Cr.AVicoRXLx, p. 242. 



er. Antenn;e with joints from the lliird < nward more or less ser- 

 i-ate or saw-toothed, very rarely clavate or capitate; food 

 variable, but rarely de(aying .inimal matter. 



Series III. Seriucornlv, p. G8G. 



