When I was a young’un in the rural South, we called these doodlebug holes. There is much folklore about doodlebug holes. The version I learned as a child was, “Doodlebug, doodlebug, come out, your house is on fire.”
A little Googling reveals doodlebug holes to be the sand pit traps of antlion larvae. As for the adult antlions, I’ve already found one of them in the house this spring. I caught it in a jar and took it outside.
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