THE CANADIAN ENTOMoLOGlST. 



11 



dark. The twelve-spotted Diabrotica, D. 12-punctata, Fabr. (Fig. 2), in 



• •---„—-'' lif<^ is pale greenish above, turning to yellowish in old cabinet 



Nl.F specimens ; antennae dark, with three basal joints pale, head 



/'slfet^^. black, scutellum dark, each elytron with six black spots. Legs 



/ J-^v dark, basal half of femora pale. Size a little greater than the 



Fig. 2. preceding. Mr. Harrington has recently found Z>. lofigicornis, 



Say, in the Eastern Provinces. It may easily be distinguished by its 



smaller size and immaculate green, fading to yellowish, elytra. 



Phvllobrotica, Chevr. 

 These are very pretty insects, marked with yellow and black. Two 

 have been recorded from Canada, but as there is a chance of error in 

 determination I herewith include limbata as well, since its other recorded 

 distribution seems to indicate a more northern range than is found in 

 discoidea. All three have yellow head and thorax. Dr. Horn thus 

 defines them : 



Elytra yellow, with two oval piceous spots on each (Fig. 3), .22-28 

 in decorata, Say- 

 Elytra piceous, sides and suture yellow. 



Thorax with moderately deep fovea each side. .14-. 2 6 



in discoidea, Fabr. 



Thorax with transverse depression. .14-26 in. . .limbata, Fabr. 



LuPERODES, Motsch. 



Contains one Canadian species, L. meraca, 



Say, an elongate insect, .20 in. long, dark blue or 



blue-black above, piceous beneath, thorax nearly 



equal in length and breadth, hind angles acute 



and prominent, disk convex, smooth, elytra 



sparsely punctate. Legs yellow, basal half of 



femora piceous. It has been reported by Mr. 



Chittenden as feeding on the witch-hazel, while 



on another occasion he found it in great numbers 



on the flowers of the wild rose, the petals of 



which served as food. 



Galeruca, Geoff, 



G. externa, Say, represents the genus in North America, and while 



commoner to the eastward, has been reported from Canada. It is a 



robust insect, easily known from our other Galerucini by the large size 



27-44 i"-) ^od broadly oval form. The colour is blackish, outer margin 



Fig. 3, 



