THE CANADIAN ENTOMOLOGIST, 



b. Elytral punctures so dense as to be indistinct as such. 

 Yeltow vittiB of elytra attenuate to apex. .30-40 



in tome7itosa, Linn. 



Yellow vittje broad, parallel and entire. .28-38 



in canadensis, Kby. 



bb. Elytral punctures dense, but distinctly separate. Elytra normally 



vittate as in canadensis. .26-.36 in virgata, Lee. 



AA. Surface of body with metallic lustre ; if not in the markings of the 

 elytra, at least on those of the head and thorax. Punctuation 

 of elytra comparatively rough. 



Elytra entirely blue, except border. .20-. 32 



in flavolinibata, Mann. 



Elytra with outer border and discal vitta yellow. 



. 20-. 28 in convergens, Lee. 



Galerucella, Crotch. 



This genus, as now understood, contains species formerly dis- 

 tributed partially in Adimonia and partially in Galertica. Many 

 of them are quite common, and are to be found in the sweepings 

 of meadows, on water lilies, Sagittaria, Eiipatoriuin, or occasionally on 

 the leaves of deciduous trees, as in the case of G. cavicollis, which I have 

 taken abundantly on wild cherry. All but three of the North American 

 species have been recorded from Canada, and Dr. Horn's table is here 

 reproduced almost in full, though some portions are transposed, and the 

 remainder made to include the non-vittate specimens of G. americatia, so 

 as to render identification a trifle more easy when reference cannot be 

 had to detailed descriptions. The limit of variation in some of the 

 vittate forms is very wide, and has resulted in the multiplication of 

 nominal species. It is believed that the table will now cover any cases 

 likely to be met with in the Provinces of Ontario and Quebec. In case 

 of the occurrence there of the elm-leaf beetle, a reference to the first page 

 of this article will result in its proper identification. 

 A. Colour red. 



Elytra more coarsely punctured, intervals between punctures dis- 

 tinct, surface shining. .18-22 in cavico/iis, Lee. 



Elytra finely and densely punctured, surface rather opaque. 



• . 18-.22 in rnfosanguifiea, Say. 



AA. Colour yellowish, brownish or piceous, elytra vittate or not. 

 b. Elytra normally vittate. 



