Depending on the intensity of summer rains, the Lyside Sulphur (Kricogonia lyside) butterflies may be seen fluttering about in the Tucson area. These butterflies are 1 ¼ to 2 inches in size. Their color can be a whitish or greenish with yellow. These butterflies do not appear with every monsoon.
Bailowitz, Richard A. Butterflies of Southeastern Arizona. Tucson, Ariz.: Sonoran Arthropod Studies, Inc. c1991. Pages 163-164.
Stewart, Bob. Butterflies of Arizona; a photographic guide. Arcata, CA: West Coast Lady Press. c2001. Page 40
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