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Two-tailed Swallowtail

Asterocampa leilia), which I think is the common orange butterfly I see around all the time. The two submarginal black spots and two solid brown discal bars are clearly visible in the photograph. Also some yellow butterflies, one of which seemed to have black wing edges, and a beautiful red dragonfly which posed for me in the sun.

Moss! Under a paloverde, with a low wild lettuce plant sprouting in its midst, and a neat cylindrical hole like a trapdoor’s without the door. The Cooper’s Paperflower is fading, and the Desert Broom is putting out tiny white flowers.

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About Bill McCallum

I was born in Australia and came to the United States to pursue a Ph. D. in mathematics at Harvard University, met my wife, and never went back. I am a professor at the University of Arizona, working in number theory and mathematics education.

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