Where have the toktokkies gone?

Toktokkies were abundant where I grew up. Harmless black beetles that tapped with their bodies on the ground in order to attract a mate. They ate leaves and we often captured them and kept them in a box for a day or two, before releasing them back into the garden. They walked on our hands with spindly legs and their white and black striped antennae that moved slowly as if perceiving signals.We used to make "wagon" from empty Lion's Matchboxes and harnesses were made with cotton and tied loosely around the toktokkie's neck. Small sticks and leaves were loaded onto the wagon and the toktokkies eagerly pulled their loads much to our amusement.