THE CANADIA.N ENTOMOLOGIST. 263 



could not have had good material of both forms before him or such a bad 

 mistake would not have likely occurred. I have good material of the 

 former from Vancouver and from Queen Charlotte Islands, and of the 

 latter from Queen Charlotte Islands, and their union cannot be entertained 

 when compared. 



Agrilus macer, Lee, seems to be rare. It was described from Texas 

 (Eagle Pass) ; one male occurred here five years ago, but it has not been 

 taken since. If Dr. Horn's and Dr. Leconte's examples were ornamented 

 with pubescence, it is not clearly set forth ; in that taken here^ on each 

 side of the thorax above is a broad marginal band of white pubescence ; 

 the sternal side pieces, the vertical portion of the ventral segments, and a 

 large spot on each side of each of the ventral segments, white, as in diffi.- 

 ci/is, from which it may at once be known by the furcate or emarginate 

 projecting carina of the pygidium. In this sex the elytra are acute at tip 

 as well as rounded and serrate, just as in difficilis, I have observed no 

 other record of distribution than the above, but quite likely it is mixed in 

 collections with difficilis. 



Phyllodeda vitelliiix, Linn. — This species is recorded from Canada, 

 Michigan and New Hampshire. No American examples have been seen, 

 and there is strong presumptive evidence that vulgatissima, Linn., is the 

 species so determined by Kirby ; in his time, in Britain, the latter species 

 was placed as a synonym of vitellince, and of course he would give the 

 same name to the American examples. Vulgatissima is common in the 

 regions mentioned, but no example of the other species is known. The 

 two species are difficult to separate, even with the insects in hand, and it is 

 more so to make an intelligible description of their differences. In both 

 species the colour of the upper surface is equally variable — green, violet, 

 purple or bronze ; the surface of the thorax is a little uneven, sparsely 

 irregularly finely punctured on the disc, more densely toward the sides ; 

 the elytra are serially punctured in undulating rows of fine, close-set 

 punctures ; these rows are usully much confused before the apex and at 

 the sides ; the intervals are usually impunctate. The differences at first 

 sight are not very evident, the chief being the more elongated form of 

 vulgatissitna and the carination of the lateral elytral interval ; vul- 

 gatissima is .19 inch, in length; vitellince .17 inch., with the width of the 

 former and a little more convexity, which gives it a more robust appear- 

 ance. The carination of the lateral elytral interval used by European 

 authors to divide the genus into sections is not a very evident character ; 



