THE CANADIAN ENTOMOLOGIST. 127 



I have several with the additional spot which you mention ; but if you 

 examine your specimens with care you will, I think, discern that mark, or 

 a faint trace, in most of them." 



It seems that Harris had previously called the attention of Hentz to 

 an additional spot (probably the fourth) in this species, the above being 

 his reply. Thus was this same variation in the elytral markings observed 

 nearly sixty years ago by Hentz and Harris ; the former leaving us to infer 

 from his last sentence that he also found the variety with the rudimental 

 fourth spot of the most frequent occurrence. Hentz also observed, as 

 others, myself included, have done, that the ground color of the speci- 

 mens varies from the typical bright green to a deep blue. 



One word more as to the same peculiarity of which our subject treats 

 having been observed in foreign species. Wood gives us some interesting 

 information in his Insects at Home, page i6, upon the variation of the 

 elytral markings in C. campestris of England. He says : — 



" The color of this beautiful beetle is gold-green above, and shining 

 copper green below ; and there are several yellowish spots on the elytra, 

 varying much in shape, number and hue. Sometimes there are only three, 

 but in many specimens there are six. In former times the variety in the 

 number of spots was thought to indicate that the beetles belonged to 

 different species, but it is now decisively ascertained that they are only 

 varieties of one single species." 



Many other species of Cicindela are known to vary considerably in 

 their elytral markings and coloration, some much more than others. 

 Cicindela is indeed a variable genus. 



NOTES ON CHRYSOMELA. 



BY GEO. H. HORN, M. D. 



Chrysomela scalaris Lee. The question asked by Dr. Hagen in the 

 June number concerning the name of this insect, is more easy to answer 

 than to arrive at a definite conclusion. Stal, in his monograph, did not 

 recognise many of the genera into which Chrysomela had been divided ; 

 among them were Doryphora and Leptinotarsa. Finding that Olivier in 

 1807 had described a D. scalaris, and that Maj. LeConte in 1824 a 

 Chrys. scalaris, Stal superseded the latter name by miiltiguttis. Recent 

 authors are in accord in adopting many of the genera rejected by Stal, 



