Plate 26 



Colias euri/thcine 



Figure 1. Form ariadnc, male, Silver Spring, Md., July 23, 1927. 



2. Form ariadne, female, Silver Spring, Md., August 6, 1927. 



3. Yellow female with a barely perceptible orange flush on the discal 



portion of the fore wings ; Cabin John, Md., September 14, 1928. 



4. White female, Cabin John, Md., September 19, 1925. 



5. Very large female, Cabin John, Md., September 11, 192.8. 



6. Very large female, Cabin John, Md., September 14, 1928. 



7. Female with the spots in the back margin of the fore wings orange ; 



Cabin John, Md., October 7, 1928. 



8. White female flushed with pink on the discal portion of the fore 



wings and with yellow on the hind wings ; Cabin John, Md., 

 October 7. 1928. 



283 



