Originally Posted by Smiley
lives in open areas throughout the US and Southern Canada. Adults feed on nectar and larvae eat hairless caterpillars and sawfly larvae. Female digs short burrows in sand or light soil, enlarges a chamber to receive immobilized insect prey, and lays an egg. Larva feed initially on nonessential tissues, later eats indiscriminately, killing host.
I already posted what those insects are, Thread-waisted wasps. They just want to pull a human down into the hole so that their young have a host to feed upon . . . ;)