Flea beetles are found throughout North America. Adults overwinter and lay eggs in early spring on or in the soil near the base of the host plant.
The adults can be from 1/16 to 1/5 of an inch long, depending on the species. Under a hand lens, the different species usually will be a dark color, but a few species will show some light-colored stripes.
Photo courtesy MOTHER EARTH NEWS editors
For many years we noticed the tiny holes in the leaves of different garden plants before we actually went investigating. We were continually frustrated at seeing only the holes, but not actually seeing the bugs.