This bug has been reportedly found in the following regions:
Mobile, Alabama Ozark, Alabama Citrus Heights, California Fallbrook, California Gainesville, Florida Jacksonville, Florida Melbourne, Florida Naples, Florida Spring Hill, Florida Griffin, Georgia Blue Eye, Missouri Wake Forest, North Carolina Utica, South Carolina Dallas, Texas Lyle, Washington
On Jul 6, 2009, gagurl330 from Winston Salem, NC wrote:
My son and I saw this worm on our sidewalk after an early evening rain. I just recently bought four containers of lavender from Lowe's. I've never seen anything like this before and contacted the Extension Agency for our county. They didn't take a report.
On Jun 16, 2010, gshare74 from Citrus Heights, CA wrote:
We found one of these worms the other day in our yard, since then I have found about 15 in my courtyard after I water. I cant find much info on it except that they eat earthworms. I want to know how to kill it, how long they live, ext.
The following link connects to a paper about the differences between the three most common broadhead planarians now found in North America. It includes a figure showing the color pattern differences among their heads.