Butterflies That Appear During the Monsoon Season
Depending on the intensity of summer rains the Lyside Sulphur Butterflies can be seen flying in the Tucson area. These butterflies are 1 ¼ to 2 inches big. Their color can be a whitish or greenish with yellow. These butterflies do not appear with every monsoon.
For photographs of these butterflies go to: http://www.kimandmikeontheroad.com/lyside_sulphur1.htm
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