BIOLOGICAL PAPERS. 255 



spots where plants were missing. It flies much more slowly than C. 

 punctulata and its variety micans, both of which inhabit similar 

 placed, and the latter of which the green form closely resembles. Its 

 flight is also much longer than that of micans. It rises almost per- 

 pendicularly to the height of three or four feet and then goes out hori- 

 zontally, much after the manner of C. obsoleta, but of course not 

 so far. 



C. pulchra Say. I first took this species at Meade, Kan., May 15, 

 1902, taking sixteen specimens. Common at Lakin, June 13 ; at 

 Wallace, July 8-10; August 4, at Wallace, several dead ones were 

 seen and one battered live specimen. I concluded that this was the 

 end of the season ; but later, August 25, I found several apparently 

 fresh specimens at Las Animas, Colo. At Oakley, Kan., I took a fresh 

 specimen September 15, and, the present season, one at Grainfield on 

 September 25. I conclude that there is a second brood of this species, 

 not so numerous as the first. The species is found in Colorado in the 

 Arkansas valley as far west as Salida. 



C. sexguttata var. violacea Fab. The true relation of violacea to 

 the type is not well defined. The original description as well as 

 Schaupp's definition would fix all immaculate specimens as variety 

 violacea. Leng, on the other hand, confines that variety to the rare 

 form which is entirely violet in color. Both these seem to me to be 

 extreme views. An examination and comparison of specimens from 

 various parts of the country shows that the Western forms have legs 

 uniformly violet, while the Eastern and Southern ones have green legs. 

 Immaculate individuals are common both in the East and the West. 

 So also are individuals with one, two, three or even four spots on 

 each elytron. Of course a larger proportion of the specimens in the 

 West are immaculate, but the violet form mentioned by Leng has a 

 large proportion of the individuals spotted. The original description 

 would not apply to them. I am inclined to place all Kansas speci- 

 mens under the variety violacea, on the ground of the color of the 

 legs and without regard to maculation. This insect appears at Man- 

 hattan about May 15, and remains until about August 20. It is 

 abundant. The bright violet form is found at Manhattan, Topeka, 

 Alma, and Onaga. No doubt there are other good localities for it in 

 the state. 



C. purpurea Oliv. Occasional at Manhattan. More common both 

 to the east and west where the country is less broken. Westward it 

 gradually grades into the variety graminea. While it occurs here in 

 company with both vulgaris and splendida, the association seems to 

 me to be an accidental one. No evidence of hybridism with splendida 

 has been observed. Taken in April, May, September, and October. 



C. purpurea var. audubonii Lee. Found abundantly over the 



