Great Spangled Fritillary (Speyeria cybele)
Great Spangled Fritillaries (Speyeria cybele)
Mating pair, female on the right
Fermilab, Kane County, Illinois
June 21, 2002

Great Spangled Fritillaries are most commonly found along woods edges, such as just west of the Big Woods near the Prairie Interpretive Trail off Pine Street, and also around the wet woods within the Main Injector ring.

Great Spangled Fritillary (Speyeria cybele)
Fermilab, Kane County, Illinois
June 22, 2004

This Great Spangled Fritillary has an unusual amount of black coloration.  

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