a dung beetle is under snowballs. You know when there is a dung beetle under a snowball because the snow ball will move so you go up to the snow ball slowly and swing your net and hopefully you will catch it!
You can also get sort of close to the snowballs and hit the up arrow. When the screen shifts upward, you would see the dung beetle under the snowball, and be sure which side of the snowball it's on, too, so you aren't swinging your net on the wrong side.
