CERAMBYCIDAE. 291 



Schiodte,* and Lacordaire.-j- I have constructed the following 

 table as exhibiting the more obvious relations between the tribes 

 represented in our fauna. The cross relationships can of course 

 only be indicated in the more detailed descriptions which follow, 

 and I am far from believing that the arrangement here adopted 

 can be extended to the immense number of genera found in other 

 countries, with any better success than the two classifications 

 previously devised by me. 



The tribes of the CerambycidsB genuini may be arranged as 

 follows : the series are indicated very plainly, but can hardly be 

 definitely restricted; the tribes seem to be limited tolerably 

 sharply, though the cross affinities are frequently perplexing 

 when an attempt is made at a linear arrangement. 



I. Base of antennae not enveloped by the eyes ; antennae with the 2d 

 joint rather large, front coxae transverse, not prominent. 



CALLIDIOIDES. 



Ligula corneous, eyes variable. I. ASEMINI. 



Ligula membranous, eyes finely granulated. II. CALLIDIINI. 



II. Base of antenna partly enveloped by the eyes ; front coxae not coni- 

 cal, though sometimes prominent ; stridulating plate (absent only 

 in Molorchus) large, never divided; ligula membranous (except 

 in the group Oemes) ; 2d joint of antennas small (except in one 

 genus of Clytini). CERAMBYCOIDES. 



Eyes coarsely granulated, front coxal cavities open behind (except 



in Compsa). III. CERAMBYCINI. 



Eyes variable, front coxal cavities angulated, closed behind. 



IV. OliRIIM. 



Eyes finely granulated ; 



a. Scutellum rounded, tibial spurs small ; elytra not sinuate ; 

 Legs long slender, thighs pedunculated and suddenly clavate ; front 



coxal cavities open behind ; 



Antennae with poriferous system. V. ANCTLOCERINI. 



Antennae without poriferous system. VI. RHOPALOPHORINI. 

 Legs slender, thighs not pedunculated, nor clavate, front coxal 



cavities open behind ; 



Front coxae rounded. VII. PTEROPLATINI. 



Front coxae transverse, cavities angulated. 



VIII. ROSALIINI. 



* On the Classification of Cerambyces, with particular regard to the 

 Danish fauna, by Prof. J. C. Schiodte, Naturhist. Tidschrift, 3d, ii, 483, 

 (1864) ; translated in Annals and Mag. of Nat. Hist., 1865. 



f Genera des Coleopteres, Vol. viii, Paris, 1869. 



