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ILLINOIS BIOLOGICAL MONOGRAPHS 



[444 



setts, show the dull green occurring in ontogeny. Similar greenish 

 reflections occur in the western forms, but this blends with dark color 

 instead of brown. 



The light wine color of the high altitude form of C. formosa 

 (Salida, Colorado, 7000 ft.) is duplicated in the ontogeny of color in 

 C. formosa from near Chicago. Specimens which have this color are 

 sometimes collected in the late summer near Chicago, but none have 

 been taken in the spring. 



C. punctulata appears not to possess a film such as described, as a 

 rule, and the changes during ontogeny are not marked. The brilliant 

 green forms which occur in the southwest have no counterpart in 

 ontogeny. 



Nearly all the species of the tranqueharica group, as well as many 

 others, show a great series of colors. The following shown in Table II 

 occur : 



Table II 

 Showing Colors Occurring in Several North American Species 



*Reflections in western forms. 

 **Reddish brown. 

 ***Dull bluish drab. Vera Cruz, Mexico. 



In scutellaris, purpurea, anthracina, and sexguttata black and 

 green forms are mixed, i.e., the species are dimorphic. The same is 

 probably true of tranqueharica, as plutonica appears to be rare and 



