Adult antlions can be distinguished from damselflies or small dragonflies by their weaker flight and the presence of noticeable antennae (in the picture taken with a flash, each antenna blends with its respective shadow).
Juvenile antlions, or "doodlebugs", construct conical pits in soft soil to trap small insects, often ants, on which they feed. On both of my stays in the Park, I found a cluster of pits in McKittrick Canyon. In 2003 I also found some pits in the backyard Frijole Ranch. Unfortunately, it was late in the day when I found these so the center of the pit in the picture is shaded and the doodlebug does not show up.
antlion pit, home of the doodlebug
2003 September 28 in the middle of the backyard at Frijole Ranch
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