1|^ Canatliatf Kntontala^bt* 



Vol. XXIX. LONDON, SEPTEMBER, 1897. No. 9. 



THE COLEOP.TERA OF CANADA. 



BY H. F. WICKHAM, IOWA CITY, IO\VA. 



XXV 11. The Cerambycid^ of Ontario and Quebec. — ( Continued. ) 

 With this paper we begin the consideration of the Lamiins, the third 

 great subfamily of Longhorns. They have recently been worked up by 

 Mr. Leng and Dr. Hamilton in a joint publication* which has been 

 largely used and followed in the preparation of the succeeding pages. 

 The essential characters are to be found in the oblique sulcation of the 

 outer side of the front tibiae, the lack of prothoracic margin and the 

 cylindrical pointed terminal joint of the palpi. None of the Canadian 

 forms offer exceptions to the above rule. It will also be noticed that the 

 front of the head is usually vertical instead of being oblique or nearly 

 horizontal. Compare a Priomis, Rovialeum and Saperda and this point 

 will be made clear. 



In order to construct a dichotomous table of the Canadian genera 

 it has been necessary to disturb the sequence somewhat. The student 

 will understand, however, that no implication of relationship is meant 

 to be expressed in the succession as adopted in this paper, but conveni- 

 ence of identification has been given the most prominence. Probably 

 the only characters that will be found difficult to a beginner are those 

 relating to the claws (which, however, are sufficiently commented upon 

 in the table), the antennal cicatrix and the front coxae. The cicatrix is a 

 sort of scar which is to be easily seen in Aloiiohaintmis near the tip of 

 the first antennal joint ; it is, in the above genus, limited by a distinct 

 raised line. The angulation of the front coxal cavities is readily noticea- 

 ble in the same insect, especially if the leg be removed, when it is seen 

 that the cavity, instead of being circular in outline, has a V-shaped nick in 

 the outer margin. 



It is, perhaps, hardly necessary to state so self-evident a fact as that 

 the " Classification " of Drs. Leconte and Horn has furnished the chief 



*The Lamiina; of North America. Trans. Am. Ent. Soc, XXIII. 



